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  Imran Sarkar is now friends with Sourav Chowhan.

  • July 1, 2022
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  Sourav Chowhan commented on Fatima Ahmed's blog entry.

  

  The Future - $10 English writing project

  The Future - $10 English writing project
   
  
  For this English writing project, please write about the following...  moreThe Future - $10 English writing project
   
  
  For this English writing project, please write about the following topic:
  'It is important to plan for the future.’ Discuss.  
   
  If you want to work on this English writing projec...  

  • April 12, 2022

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    Sourav Chowhan Thank you so much, Fatima apu

    • April 12, 2022
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  Sourav Chowhan liked Fatima Ahmed's blog entry.

  

  The Future - $10 English writing project

  The Future - $10 English writing project
   
  
  For this English writing project, please write about the following...  moreThe Future - $10 English writing project
   
  
  For this English writing project, please write about the following topic:
  'It is important to plan for the future.’ Discuss.  
   
  If you want to work on this English writing projec...  

  • April 12, 2022

  • Sourav Chowhan likes this.
  • 
    Sourav Chowhan Thank you so much, Fatima apu

    • April 12, 2022
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  Sourav Chowhan commented on Fatima Ahmed's photo.

  

  HI Sourav, thanks for writing the essay on 'The Future'. Very nicely written with good examples. We liked your different examples in your writing. For example, how young folks might have one kind of goal versus old people, how people plan according...  moreHI Sourav, thanks for writing the essay on 'The Future'. Very nicely written with good examples. We liked your different examples in your writing. For example, how young folks might have one kind of goal versus old people, how people plan according to their ambitions, etc. Lots of inspirational ideas in your writing. Thank you very much! https://docs.google.com/document/d/1gTfyojaytRph89sjyCxz6EQr7VyyHnLt2MDWJnj_ltU/edit?usp=sharing  less

  • April 11, 2022

  • Sourav Chowhan likes this.
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    Sourav Chowhan You're welcome

    • April 11, 2022
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  Sourav Chowhan liked Fatima Ahmed's photo.

  

  HI Sourav, thanks for writing the essay on 'The Future'. Very nicely written with good examples. We liked your different examples in your writing. For example, how young folks might have one kind of goal versus old people, how people plan according...  moreHI Sourav, thanks for writing the essay on 'The Future'. Very nicely written with good examples. We liked your different examples in your writing. For example, how young folks might have one kind of goal versus old people, how people plan according to their ambitions, etc. Lots of inspirational ideas in your writing. Thank you very much! https://docs.google.com/document/d/1gTfyojaytRph89sjyCxz6EQr7VyyHnLt2MDWJnj_ltU/edit?usp=sharing  less

  • April 11, 2022

  • Sourav Chowhan likes this.
  • 
    Sourav Chowhan You're welcome

    • April 11, 2022
• 
  Fatima Ahmed: HI Sourav, thanks for writing the essay on 'The Future'. Very nicely written with good examples. We liked your different examples in your writing. For example, how young folks might have one kind of goal versus old people, how people plan according...  moreHI Sourav, thanks for writing the essay on 'The Future'. Very nicely written with good examples. We liked your different examples in your writing. For example, how young folks might have one kind of goal versus old people, how people plan according to their ambitions, etc. Lots of inspirational ideas in your writing. Thank you very much! https://docs.google.com/document/d/1gTfyojaytRph89sjyCxz6EQr7VyyHnLt2MDWJnj_ltU/edit?usp=sharing  less

  

  • April 8, 2022

  • Sourav Chowhan likes this.
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    Sourav Chowhan You're welcome

    • April 11, 2022
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  Sourav Chowhan liked Fatima Ahmed's classified listing.

  

  Adam's Brunoise Dice - $5 Physics Quiz

  Adam's Brunoise Dice - $5 physics quiz
   
  
  Adam Petropoulos recently got admitted to the culinary institute named Le Monde in Athens, Greece. His career goal was to become a chef.  He loved food!  He wanted to learn the art of flavor...

  • June 27, 2021

  • Sourav Chowhan likes this.
  • 
    Mesbah Abir To understand this, at first we have to know about pressure. In the light of physics, pressure is the amount of force applied per unit area. That is P=F/A. Now in case of cutting something using a knife, you have to put pressure on the thing you want to...  moreTo understand this, at first we have to know about pressure. In the light of physics, pressure is the amount of force applied per unit area. That is P=F/A. Now in case of cutting something using a knife, you have to put pressure on the thing you want to cut. It is mentionable that,less the area is, more the pressure will be. That means pressure is inversely proportional to area. You know that, a sharp knife have less area on the cutting edge than the blunt one. As a result, by giving equal force the pressure by the sharp knife will be more than the blunt one. To do the same work, you have to give more pressure on the blunt knife for which the possibility of slipping the blunt knife with greater force will be more. And that would be dangerous for you as this can cause serious damage. For this reason, it is recommended to use sharp knives rather than blunt knives to cut vegetables.  less

    • June 21, 2021
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    Tawhid Mim A dull or blunt knife is a lazy tool. It doesn’t want to work so it makes you work harder. That means using more pressure or a harder chopping motion.
    If you’re using a knife to peel a potato or carrot, the dull knife can stop on an irregular...  moreA dull or blunt knife is a lazy tool. It doesn’t want to work so it makes you work harder. That means using more pressure or a harder chopping motion.
    If you’re using a knife to peel a potato or carrot, the dull knife can stop on an irregular surface, forcing you to use excessive pressure to get past it. If the knife blade suddenly slips, you’re likely to cut yourself as it suddenly speeds up.
    Dull blades make cutting meats harder and make you use extra force to cut through any tougher part of the meat. Once it cuts through and can move easily, quite often you’ll cut your other hand when the blade moves quickly due to the force you’re using.
    A sharp blade cuts easily through most foods and only light to moderate pressure is required. It’s easier to guide and control a sharp blade due to its consistent cutting ability.  less

    • June 21, 2021
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    • 1 likes this
  • 
    Khokon Roy The main reason it's safer is that a sharp knife will do what you intend to do - it will cut things - it will cut cleanly and decisively - so as long as you're not doing anything stupid (like cutting toward your fingers), the knife will perform the...  moreThe main reason it's safer is that a sharp knife will do what you intend to do - it will cut things - it will cut cleanly and decisively - so as long as you're not doing anything stupid (like cutting toward your fingers), the knife will perform the cutting operation with precision and predictability, and with minimal application of force.
    A blunt knife, on the other hand, is quite likely to slip off the surface of some harder or tougher objects - and this means it will go in a direction you did not intend - perhaps in the direction of your fingers. To compensate for the loss of cutting action, you'll find yourself applying more force - which means you may no longer be in control of the blade; you might not even be holding it properly any more - and then, when the blade still slips and goes where it isn't meant to, it will arrive with far greater force, possibly cutting you quite badly.
    A blunt knife also tends to crush the food, rather than cutting it - so with something like an onion, the layers will...    less

    • June 21, 2021
  • 
    Imad Mustafiz The main question that arises is that a sharper knife has more penetrating power and can easily cut through someone's skin in case of a slip causing an incised wound. But a blunt knife will create laceration which will create irregular edges in the wound...  moreThe main question that arises is that a sharper knife has more penetrating power and can easily cut through someone's skin in case of a slip causing an incised wound. But a blunt knife will create laceration which will create irregular edges in the wound creating a risk of infection. According to physics, we know that a unit of force (1 newton) applied to a unit area (1 meter squared) perpendicularly will create 1-pascal pressure. The formula being P=F/A (n/m^2). So, the more we apply pressure to the handle of the knife, the more the pressure is in a smaller surface area. This makes the point of contact of the vegetables precise and allows swift and clean cutting. Whereas the blunt knife having a larger surface area, won't have the same penetrating force which will result in a twisting force called torque. So the knife will rotate and cause injuries to the hand.  less

    • June 21, 2021
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    Taarik Hasan In equation form Pressure = Force/Area. Here the Pressure is determined by equal Proportionate of Applied force, and Area is disproportionate. If the area of applied force is less/thin/small, the pressure will increase on same applied force.
    
    
    If the...  moreIn equation form Pressure = Force/Area. Here the Pressure is determined by equal Proportionate of Applied force, and Area is disproportionate. If the area of applied force is less/thin/small, the pressure will increase on same applied force.
    
    
    If the Force is fixed, then the Pressure will increase by thinner (Sharp) Area of contact. The knife is the Area of contact with carrot.
    
    The Area is constant then increasing the pressure must go through putting more Force on the knife. (The Knife is dull then the area of contact is fixed with a thick characteristic.)
    (..)  less

    • June 21, 2021
  • 
    Taarik Hasan (..)
    Thinner/sharper area puts more pressure on surface that helps to use less energy as pressure for a person to cut the carrots smoothly. Dull knives
    need to use more force and it is kind of slippery cause it doesn’t cut smoothly.
    Possibility of...  more(..)
    Thinner/sharper area puts more pressure on surface that helps to use less energy as pressure for a person to cut the carrots smoothly. Dull knives
    need to use more force and it is kind of slippery cause it doesn’t cut smoothly.
    Possibility of slipping the path during cutting is dangerous.
    
    
    It can go to the finger just placed millimeters after the
    cut area of vegetable. Also more pressure on carrot may not cut effectively but for human body pressure with a dull knife is more dangerous than a sharp knife.  less

    • June 21, 2021
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    Nanjiba Naowar Imagine two knives, Sharp and Blunt. Sharp must have a thin edge and the Blunt has a thick edge. So the edge area of blunt is bigger than sharp. When you put the same force on both of them, the force is distributed in the smaller portion of Sharp's edge...  moreImagine two knives, Sharp and Blunt. Sharp must have a thin edge and the Blunt has a thick edge. So the edge area of blunt is bigger than sharp. When you put the same force on both of them, the force is distributed in the smaller portion of Sharp's edge area and makes more pressure directly on surfaces and makes a quick cut. The same force will be distributed in the bigger portion of the Blunt's edge area and as the force spreads in a bigger place, the pressure becomes weaker on the surface and makes it harder to cut thoroughly. Sharp knife bite the surface with its thin edge and the blunt knife can't sit properly, so it becomes slippery and risky.
    In physics term, force/area=pressure. Here, forces are equal. Sharp knife has a smaller and blunt knife has a bigger area. When you divide the same number with a small and a large number, they result in a big and a small number(pressure) respectively. So the pressure of a sharp knife will be greater than blunt one.  less

    • June 21, 2021
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    Sourav Chowhan So the phenomenon is related to the Pressure of physics.
    We know pressure very well right? Pressure is a physics phenomenon like if you Push some object, you're are actually employing pressure theory. To cut something you need to give some push/Force to...  moreSo the phenomenon is related to the Pressure of physics.
    We know pressure very well right? Pressure is a physics phenomenon like if you Push some object, you're are actually employing pressure theory. To cut something you need to give some push/Force to cut or chop that object right?
    The equation of pressure is P=F/A, Here "P"(pressure) refers to pressure, "F"(Force) is referring to Force that you're applying to that object and "A"(Area) is where you're applying the force. Ever seen any car glass-breaking video on youtube or on any social media. They use very sharp head hammers and the glass breaks. But when they use an ordinary hammer the elasticity of the glass reflects the hammer. Now we're back on that equation P=F/A, From this equation you can see the "P" is inversely propositional to "A" and "P" is proportional to "F", if you don't know what is inversely propositional and proportional then it's for you. "Inversely...    less

    • June 21, 2021
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    Sourav Chowhan propositional in that equation means if the value of the area is too low then the pressure will be too high and propositional means if the value of "F" is high then "P" will be high too.
    Brunoise cut is a special type of cutting food...  morepropositional in that equation means if the value of the area is too low then the pressure will be too high and propositional means if the value of "F" is high then "P" will be high too.
    Brunoise cut is a special type of cutting food into smaller dice in even 3mm cubes.
    Adam was trying to cut the foods with a blunt knife, so the area of the knife-edge was massive and that's why he needed to give more pressure and the chopped won't be nice because he wanted to chop the vegetable in small dices. But it won't be possible with Dull or a Flat knife.  less

    • June 21, 2021
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    Sourav Chowhan He used the blunt knife and the result is he almost cut his fingers because he needs to give more force to cut, remember that equation of pressure??? to cut with a blunt knife he needs to give more Force. But if he had used the sharp knife where the edge...  moreHe used the blunt knife and the result is he almost cut his fingers because he needs to give more force to cut, remember that equation of pressure??? to cut with a blunt knife he needs to give more Force. But if he had used the sharp knife where the edge so sharp and it can go through anything. The area of a sharp knife is so small, and from that equation, you have guessed that the pressure will be high. So it will be so easy to cut vegetables into dices or any shape he wanted, That's why chefs sharpen their knife before use. But during the cut, he needs to careful that it doesn't hurt him.  less

    • June 21, 2021
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    Sourav Chowhan With a sharp knife, he doesn't have to give much pressure on cutting, so that's why it will be safer.
    That's why it is safe to use a sharp knife than a dull knife. It will save you both time and energy.
    
    So next time you cut a tomato please use a sharp knife.

    • June 21, 2021
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    Afnan Alam From Pascal's Law, we derive the equation of pressure as follows-
    P=F/A
    where, P= applied pressure on the object
    F= force applied on the...  moreFrom Pascal's Law, we derive the equation of pressure as follows-
    P=F/A
    where, P= applied pressure on the object
    F= force applied on the object
    A= the area of the object where pressure is applied
    Let's consider in above circumstances, adam applied the same amount of force on the carrot he was cutting with both the sharp and blunt knife. His ease of cutting will be dependent on whether the area of applied force is lesser than the other or not. Now, with common sense, we can easily understand that the sharp one has a lesser area of pressure than the blunt one because the edge is much narrower. So, more pressure will be put on using the sharper one.
    The risk of using a blunt knife is that it may slip the vegetable adam is cutting and may severely injure his hand. We don't want any harm to be done to this nice fellow. That's why his instructor advised him to use a shape knife in order to cut them with ease and safety while taking less time.  less

    • June 21, 2021
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    Abrar Ibne Amin Jim The incident refers to pascal's law: P= F/A. Here P= Pressure, F= Force and A= Surface Area(The surface area of the object on which force has been applied). The P and A are inversely proportional to each other.
    
    Adam tried to cut the carrots using a...  moreThe incident refers to pascal's law: P= F/A. Here P= Pressure, F= Force and A= Surface Area(The surface area of the object on which force has been applied). The P and A are inversely proportional to each other.
    
    Adam tried to cut the carrots using a blunt knife. He couldn't do that in brunoise cut and he almost cut his hand. His teacher mentioned that the sharp knife is efficient to cut any food. If you try to cut a cucumber using a blunt knife it would require you to exert more strength/force. The knife may slip if the sharp end is too thick. Whereas if you use a sharp knife you can efficiently do that by exerting less strength/force
    
    This is because of the force and the surface area. The surface area of the sharp end of a blunt knife is more than that of a sharp knife. We get from pascals law that Pressure is inversely proportional to the surface area. So if you apply the same amount of force for both the knife, the sharp knife would be more efficient. So sharper knife is safer in cutting food...    less

    • June 21, 2021
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    Yeasin Arafath In this case, Adam is trying to cut the Carrot. So he has to apply force in the knife which makes the pressure cut the Carrots. Here another physics term arises that is cutting Area of the knife. With all of these things, we can get a relation from...  moreIn this case, Adam is trying to cut the Carrot. So he has to apply force in the knife which makes the pressure cut the Carrots. Here another physics term arises that is cutting Area of the knife. With all of these things, we can get a relation from physics that is Force=Pressure/Area
    Here we can see that Force is inversely proportional to Area . This means that if Area is increasing then Force will decreasing & similarly if the Area is decreasing then the Force will increasing with the proportion to each other.
    To cut the Carrots properly Adam had to give more pressure when he used the dull knife. Because the dull knife’s cutting area is more than the sharp knife. Moreover while giving more pressure for dull knife it might be slipped and cut his hand. As cutting Area of the sharp knife is less. So he had to give less pressure & did his work nicely and more safely.  less

    • June 22, 2021
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    Tanveer Tausif Ratul The above phenomena is related to “PRESSURE”.What is pressure?Pressure is defined as-“FORCE PER UNIT AREA”.Let,we apply a certain amount of force ‘F’ by a knife which has an area ‘A’,by which it will apply the load on another object,a...  moreThe above phenomena is related to “PRESSURE”.What is pressure?Pressure is defined as-“FORCE PER UNIT AREA”.Let,we apply a certain amount of force ‘F’ by a knife which has an area ‘A’,by which it will apply the load on another object,a pressure will be created there which
    can be denoted by ‘P’.If we put these in an equation using PASCAL’s law,it will be-“P=F/A”.From the equation it can be said that,if the applied force is constant on a plane,then pressure is inversely proportional to area of the object by which load is being applied.So,area increases,pressure will decrease & area decreases,pressure will increase.
    
    
    Now consider,Adam is giving 10Newton’N’ force both on sharp knife and blunt knife while cutting the vegetables.When the knife is sharp,the area of the edge of knife is small but for blunt knife,area of that edge is larger than sharp knife. As a result,when adam is giving that
    force by sharp knife,the pressure exerted by the knife on the vegetables will be...    less

    • June 23, 2021
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    • 1 likes this
  • 
    Tanveer Tausif Ratul larger.Because of that,the vegetables can be cut very easily & safely.But while using blunt knife which has large edge area,amount of pressure will decrease for the same 10N force.As a result,he will have 2 options.One is,reducing the edge area of...  morelarger.Because of that,the vegetables can be cut very easily & safely.But while using blunt knife which has large edge area,amount of pressure will decrease for the same 10N force.As a result,he will have 2 options.One is,reducing the edge area of knife or increasing the applied force.The 1st option is impossible,so he must increase his force on that knife to cut the vegetables.But a blunt knife often slips,so it can easily injure his hand/fingers.Therefore,it is safe to cut vegetables with sharp edged knife.  less

    • June 23, 2021
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    Md Mahedi Hasan A dull knife is actually more dangerous to use than one a sharp knife. Cause a dull knife requires more pressure to cut. It’s increasing the chance of the knife can slip with great force behind it. Sharp knife bites surface much
    readily.
    
    For example,...  moreA dull knife is actually more dangerous to use than one a sharp knife. Cause a dull knife requires more pressure to cut. It’s increasing the chance of the knife can slip with great force behind it. Sharp knife bites surface much
    readily.
    
    For example, if you’re cutting a carrot and the blade is
    really dull. It will need more pressure to get through the carrot. Once it’s through the carrot, there’s a greater chance for the pressure to lead to slippage or a lack of control.
    
    Sharper knife utilizes edge geometry to make a cut. While a dull knife uses force. A sharp knife can glide through materials without much effort. on the other hand, a dull knife is clumsier & less user-friendly.  less

    • June 23, 2021
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    Khadeeza Afruz Shammee Pascal's principle of pressure describes this knife phenomenon. As a scalar physical quantity ,pressure is defined as the force per unit area applied perpendicular to the surface which it is applied .
    The elementary mathematical expression for pressure...  morePascal's principle of pressure describes this knife phenomenon. As a scalar physical quantity ,pressure is defined as the force per unit area applied perpendicular to the surface which it is applied .
    The elementary mathematical expression for pressure is giving by ,
    P = F/A
    Here, P is the pressure , F is the force acting perpendicular to the surface to which this force is applied and A is the area of the surface .
    The same force applied by a sharp knife with a smaller area of contact will exerts a much greater pressure than a blunt knife having a considerable larger area of contact .
    Once a blunt knife is through the object (vegetable or other food), there is a greater chance for the pressure to lead to slippage, skidding and injury. A sharp knife can cut using the edge of the e knife with a safer slicing. Rather, cuts from sharper knives can actually heal more easily than those from dull knives. A sharp knife is a safer knife than a dull knife.  less

    • June 25, 2021
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    Aria Hossain In physics force=pressure/area. In order to cut food, you have to exert force. According to the equation, force is directly proportional to pressure. A blunt knife has more area around the cutting edge than a sharp knife. So a blunt knife requires more...  moreIn physics force=pressure/area. In order to cut food, you have to exert force. According to the equation, force is directly proportional to pressure. A blunt knife has more area around the cutting edge than a sharp knife. So a blunt knife requires more pressure for the same amount of force to be exerted, as the pressure applied increases the chances of the knife slipping and cutting Adam's hand increases. Similarly, a sharp knife would require less pressure to be applied for the same amount of force to be exerted, this not only allows Adam to cut through the food but also prevents the knife from slipping and cutting his hand.  less

    • June 26, 2021
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    Abdullah Julaybib Firstly, you’ll need more pressure to use a blunt knife.
    P=F/A, for a fixed area, force is directly proportional to pressure. If the
    area of a blunt and a sharp knife is same, then doubling the pressure on blunt
    knife means doubling the force....  moreFirstly, you’ll need more pressure to use a blunt knife.
    P=F/A, for a fixed area, force is directly proportional to pressure. If the
    area of a blunt and a sharp knife is same, then doubling the pressure on blunt
    knife means doubling the force.
    
    Secondly,F= {m(v-u)}/t
    
    Assume, two knives have same mass and you take same amount of time to cut. As
    you start from a zero velocity, that means u=0. Ultimately you end up giving
    much more velocity to the blunt than sharp one. So, if you accidentally slip
    while cutting, blunt will hit your finger faster, which might cause a serious
    injury. Sharp knife will have less velocity, which has multiple advantages:
    bringing the sharp knife to rest is easier than blunt one. If you slip, sharp
    knife won’t hit so fast. It may cause a
    little scratch, or you’ll be lucky to stop the sharp knife as soon as it touches your skin (blunt one
    would cause a deep scar).
    
    
    For same time duration, point of contact (finger and knife)
    faces two different momenta. As a result,...    less

    • June 26, 2021
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    Abhay Sunny Pressure= force/area, area of sharp knife is less than area of blunt knife, p is proportional to 1/area, so pressure of sharp knife is more than blunt knife.Don't get confused with the wight and pressuring, pressure is the force on a unit area that is...  morePressure= force/area, area of sharp knife is less than area of blunt knife, p is proportional to 1/area, so pressure of sharp knife is more than blunt knife.Don't get confused with the wight and pressuring, pressure is the force on a unit area that is help perpendicular whereas weight is the force by which the earth attracts everything towards it's center.  

    • June 27, 2021
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    Abdullah Masud This is simply an example of pressure in our daily lives. Here, according to Pascal's law (P = f/a, where pressure is the force applied over a certain area), the sharp knife can exert greater pressure than the blunt knife, as the sharper knife has less...  moreThis is simply an example of pressure in our daily lives. Here, according to Pascal's law (P = f/a, where pressure is the force applied over a certain area), the sharp knife can exert greater pressure than the blunt knife, as the sharper knife has less contact area for the same force than the blunt knife, so the force would be exerted over a smaller area. So in order to cut anything, one would need to apply a larger force in a blunt knife than a sharper knife, and this might result in the blunt knife cutting the hand due to excessive pressure applied by the user while cutting any other objects.  less

    • June 27, 2021
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  Sourav Chowhan commented on Fatima Ahmed's classified listing.

  

  Adam's Brunoise Dice - $5 Physics Quiz

  Adam's Brunoise Dice - $5 physics quiz
   
  
  Adam Petropoulos recently got admitted to the culinary institute named Le Monde in Athens, Greece. His career goal was to become a chef.  He loved food!  He wanted to learn the art of flavor...

  • June 21, 2021

  • Sourav Chowhan likes this.
  • 
    Mesbah Abir To understand this, at first we have to know about pressure. In the light of physics, pressure is the amount of force applied per unit area. That is P=F/A. Now in case of cutting something using a knife, you have to put pressure on the thing you want to...  moreTo understand this, at first we have to know about pressure. In the light of physics, pressure is the amount of force applied per unit area. That is P=F/A. Now in case of cutting something using a knife, you have to put pressure on the thing you want to cut. It is mentionable that,less the area is, more the pressure will be. That means pressure is inversely proportional to area. You know that, a sharp knife have less area on the cutting edge than the blunt one. As a result, by giving equal force the pressure by the sharp knife will be more than the blunt one. To do the same work, you have to give more pressure on the blunt knife for which the possibility of slipping the blunt knife with greater force will be more. And that would be dangerous for you as this can cause serious damage. For this reason, it is recommended to use sharp knives rather than blunt knives to cut vegetables.  less

    • June 21, 2021
  • 
    Tawhid Mim A dull or blunt knife is a lazy tool. It doesn’t want to work so it makes you work harder. That means using more pressure or a harder chopping motion.
    If you’re using a knife to peel a potato or carrot, the dull knife can stop on an irregular...  moreA dull or blunt knife is a lazy tool. It doesn’t want to work so it makes you work harder. That means using more pressure or a harder chopping motion.
    If you’re using a knife to peel a potato or carrot, the dull knife can stop on an irregular surface, forcing you to use excessive pressure to get past it. If the knife blade suddenly slips, you’re likely to cut yourself as it suddenly speeds up.
    Dull blades make cutting meats harder and make you use extra force to cut through any tougher part of the meat. Once it cuts through and can move easily, quite often you’ll cut your other hand when the blade moves quickly due to the force you’re using.
    A sharp blade cuts easily through most foods and only light to moderate pressure is required. It’s easier to guide and control a sharp blade due to its consistent cutting ability.  less

    • June 21, 2021
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    • 1 likes this
  • 
    Khokon Roy The main reason it's safer is that a sharp knife will do what you intend to do - it will cut things - it will cut cleanly and decisively - so as long as you're not doing anything stupid (like cutting toward your fingers), the knife will perform the...  moreThe main reason it's safer is that a sharp knife will do what you intend to do - it will cut things - it will cut cleanly and decisively - so as long as you're not doing anything stupid (like cutting toward your fingers), the knife will perform the cutting operation with precision and predictability, and with minimal application of force.
    A blunt knife, on the other hand, is quite likely to slip off the surface of some harder or tougher objects - and this means it will go in a direction you did not intend - perhaps in the direction of your fingers. To compensate for the loss of cutting action, you'll find yourself applying more force - which means you may no longer be in control of the blade; you might not even be holding it properly any more - and then, when the blade still slips and goes where it isn't meant to, it will arrive with far greater force, possibly cutting you quite badly.
    A blunt knife also tends to crush the food, rather than cutting it - so with something like an onion, the layers will...    less

    • June 21, 2021
  • 
    Imad Mustafiz The main question that arises is that a sharper knife has more penetrating power and can easily cut through someone's skin in case of a slip causing an incised wound. But a blunt knife will create laceration which will create irregular edges in the wound...  moreThe main question that arises is that a sharper knife has more penetrating power and can easily cut through someone's skin in case of a slip causing an incised wound. But a blunt knife will create laceration which will create irregular edges in the wound creating a risk of infection. According to physics, we know that a unit of force (1 newton) applied to a unit area (1 meter squared) perpendicularly will create 1-pascal pressure. The formula being P=F/A (n/m^2). So, the more we apply pressure to the handle of the knife, the more the pressure is in a smaller surface area. This makes the point of contact of the vegetables precise and allows swift and clean cutting. Whereas the blunt knife having a larger surface area, won't have the same penetrating force which will result in a twisting force called torque. So the knife will rotate and cause injuries to the hand.  less

    • June 21, 2021
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    Taarik Hasan In equation form Pressure = Force/Area. Here the Pressure is determined by equal Proportionate of Applied force, and Area is disproportionate. If the area of applied force is less/thin/small, the pressure will increase on same applied force.
    
    
    If the...  moreIn equation form Pressure = Force/Area. Here the Pressure is determined by equal Proportionate of Applied force, and Area is disproportionate. If the area of applied force is less/thin/small, the pressure will increase on same applied force.
    
    
    If the Force is fixed, then the Pressure will increase by thinner (Sharp) Area of contact. The knife is the Area of contact with carrot.
    
    The Area is constant then increasing the pressure must go through putting more Force on the knife. (The Knife is dull then the area of contact is fixed with a thick characteristic.)
    (..)  less

    • June 21, 2021
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    Taarik Hasan (..)
    Thinner/sharper area puts more pressure on surface that helps to use less energy as pressure for a person to cut the carrots smoothly. Dull knives
    need to use more force and it is kind of slippery cause it doesn’t cut smoothly.
    Possibility of...  more(..)
    Thinner/sharper area puts more pressure on surface that helps to use less energy as pressure for a person to cut the carrots smoothly. Dull knives
    need to use more force and it is kind of slippery cause it doesn’t cut smoothly.
    Possibility of slipping the path during cutting is dangerous.
    
    
    It can go to the finger just placed millimeters after the
    cut area of vegetable. Also more pressure on carrot may not cut effectively but for human body pressure with a dull knife is more dangerous than a sharp knife.  less

    • June 21, 2021
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    Nanjiba Naowar Imagine two knives, Sharp and Blunt. Sharp must have a thin edge and the Blunt has a thick edge. So the edge area of blunt is bigger than sharp. When you put the same force on both of them, the force is distributed in the smaller portion of Sharp's edge...  moreImagine two knives, Sharp and Blunt. Sharp must have a thin edge and the Blunt has a thick edge. So the edge area of blunt is bigger than sharp. When you put the same force on both of them, the force is distributed in the smaller portion of Sharp's edge area and makes more pressure directly on surfaces and makes a quick cut. The same force will be distributed in the bigger portion of the Blunt's edge area and as the force spreads in a bigger place, the pressure becomes weaker on the surface and makes it harder to cut thoroughly. Sharp knife bite the surface with its thin edge and the blunt knife can't sit properly, so it becomes slippery and risky.
    In physics term, force/area=pressure. Here, forces are equal. Sharp knife has a smaller and blunt knife has a bigger area. When you divide the same number with a small and a large number, they result in a big and a small number(pressure) respectively. So the pressure of a sharp knife will be greater than blunt one.  less

    • June 21, 2021
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    Sourav Chowhan So the phenomenon is related to the Pressure of physics.
    We know pressure very well right? Pressure is a physics phenomenon like if you Push some object, you're are actually employing pressure theory. To cut something you need to give some push/Force to...  moreSo the phenomenon is related to the Pressure of physics.
    We know pressure very well right? Pressure is a physics phenomenon like if you Push some object, you're are actually employing pressure theory. To cut something you need to give some push/Force to cut or chop that object right?
    The equation of pressure is P=F/A, Here "P"(pressure) refers to pressure, "F"(Force) is referring to Force that you're applying to that object and "A"(Area) is where you're applying the force. Ever seen any car glass-breaking video on youtube or on any social media. They use very sharp head hammers and the glass breaks. But when they use an ordinary hammer the elasticity of the glass reflects the hammer. Now we're back on that equation P=F/A, From this equation you can see the "P" is inversely propositional to "A" and "P" is proportional to "F", if you don't know what is inversely propositional and proportional then it's for you. "Inversely...    less

    • June 21, 2021
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    Sourav Chowhan propositional in that equation means if the value of the area is too low then the pressure will be too high and propositional means if the value of "F" is high then "P" will be high too.
    Brunoise cut is a special type of cutting food...  morepropositional in that equation means if the value of the area is too low then the pressure will be too high and propositional means if the value of "F" is high then "P" will be high too.
    Brunoise cut is a special type of cutting food into smaller dice in even 3mm cubes.
    Adam was trying to cut the foods with a blunt knife, so the area of the knife-edge was massive and that's why he needed to give more pressure and the chopped won't be nice because he wanted to chop the vegetable in small dices. But it won't be possible with Dull or a Flat knife.  less

    • June 21, 2021
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    Sourav Chowhan He used the blunt knife and the result is he almost cut his fingers because he needs to give more force to cut, remember that equation of pressure??? to cut with a blunt knife he needs to give more Force. But if he had used the sharp knife where the edge...  moreHe used the blunt knife and the result is he almost cut his fingers because he needs to give more force to cut, remember that equation of pressure??? to cut with a blunt knife he needs to give more Force. But if he had used the sharp knife where the edge so sharp and it can go through anything. The area of a sharp knife is so small, and from that equation, you have guessed that the pressure will be high. So it will be so easy to cut vegetables into dices or any shape he wanted, That's why chefs sharpen their knife before use. But during the cut, he needs to careful that it doesn't hurt him.  less

    • June 21, 2021
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    Sourav Chowhan With a sharp knife, he doesn't have to give much pressure on cutting, so that's why it will be safer.
    That's why it is safe to use a sharp knife than a dull knife. It will save you both time and energy.
    
    So next time you cut a tomato please use a sharp knife.

    • June 21, 2021
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    Afnan Alam From Pascal's Law, we derive the equation of pressure as follows-
    P=F/A
    where, P= applied pressure on the object
    F= force applied on the...  moreFrom Pascal's Law, we derive the equation of pressure as follows-
    P=F/A
    where, P= applied pressure on the object
    F= force applied on the object
    A= the area of the object where pressure is applied
    Let's consider in above circumstances, adam applied the same amount of force on the carrot he was cutting with both the sharp and blunt knife. His ease of cutting will be dependent on whether the area of applied force is lesser than the other or not. Now, with common sense, we can easily understand that the sharp one has a lesser area of pressure than the blunt one because the edge is much narrower. So, more pressure will be put on using the sharper one.
    The risk of using a blunt knife is that it may slip the vegetable adam is cutting and may severely injure his hand. We don't want any harm to be done to this nice fellow. That's why his instructor advised him to use a shape knife in order to cut them with ease and safety while taking less time.  less

    • June 21, 2021
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    Abrar Ibne Amin Jim The incident refers to pascal's law: P= F/A. Here P= Pressure, F= Force and A= Surface Area(The surface area of the object on which force has been applied). The P and A are inversely proportional to each other.
    
    Adam tried to cut the carrots using a...  moreThe incident refers to pascal's law: P= F/A. Here P= Pressure, F= Force and A= Surface Area(The surface area of the object on which force has been applied). The P and A are inversely proportional to each other.
    
    Adam tried to cut the carrots using a blunt knife. He couldn't do that in brunoise cut and he almost cut his hand. His teacher mentioned that the sharp knife is efficient to cut any food. If you try to cut a cucumber using a blunt knife it would require you to exert more strength/force. The knife may slip if the sharp end is too thick. Whereas if you use a sharp knife you can efficiently do that by exerting less strength/force
    
    This is because of the force and the surface area. The surface area of the sharp end of a blunt knife is more than that of a sharp knife. We get from pascals law that Pressure is inversely proportional to the surface area. So if you apply the same amount of force for both the knife, the sharp knife would be more efficient. So sharper knife is safer in cutting food...    less

    • June 21, 2021
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    Yeasin Arafath In this case, Adam is trying to cut the Carrot. So he has to apply force in the knife which makes the pressure cut the Carrots. Here another physics term arises that is cutting Area of the knife. With all of these things, we can get a relation from...  moreIn this case, Adam is trying to cut the Carrot. So he has to apply force in the knife which makes the pressure cut the Carrots. Here another physics term arises that is cutting Area of the knife. With all of these things, we can get a relation from physics that is Force=Pressure/Area
    Here we can see that Force is inversely proportional to Area . This means that if Area is increasing then Force will decreasing & similarly if the Area is decreasing then the Force will increasing with the proportion to each other.
    To cut the Carrots properly Adam had to give more pressure when he used the dull knife. Because the dull knife’s cutting area is more than the sharp knife. Moreover while giving more pressure for dull knife it might be slipped and cut his hand. As cutting Area of the sharp knife is less. So he had to give less pressure & did his work nicely and more safely.  less

    • June 22, 2021
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    Tanveer Tausif Ratul The above phenomena is related to “PRESSURE”.What is pressure?Pressure is defined as-“FORCE PER UNIT AREA”.Let,we apply a certain amount of force ‘F’ by a knife which has an area ‘A’,by which it will apply the load on another object,a...  moreThe above phenomena is related to “PRESSURE”.What is pressure?Pressure is defined as-“FORCE PER UNIT AREA”.Let,we apply a certain amount of force ‘F’ by a knife which has an area ‘A’,by which it will apply the load on another object,a pressure will be created there which
    can be denoted by ‘P’.If we put these in an equation using PASCAL’s law,it will be-“P=F/A”.From the equation it can be said that,if the applied force is constant on a plane,then pressure is inversely proportional to area of the object by which load is being applied.So,area increases,pressure will decrease & area decreases,pressure will increase.
    
    
    Now consider,Adam is giving 10Newton’N’ force both on sharp knife and blunt knife while cutting the vegetables.When the knife is sharp,the area of the edge of knife is small but for blunt knife,area of that edge is larger than sharp knife. As a result,when adam is giving that
    force by sharp knife,the pressure exerted by the knife on the vegetables will be...    less

    • June 23, 2021
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    Tanveer Tausif Ratul larger.Because of that,the vegetables can be cut very easily & safely.But while using blunt knife which has large edge area,amount of pressure will decrease for the same 10N force.As a result,he will have 2 options.One is,reducing the edge area of...  morelarger.Because of that,the vegetables can be cut very easily & safely.But while using blunt knife which has large edge area,amount of pressure will decrease for the same 10N force.As a result,he will have 2 options.One is,reducing the edge area of knife or increasing the applied force.The 1st option is impossible,so he must increase his force on that knife to cut the vegetables.But a blunt knife often slips,so it can easily injure his hand/fingers.Therefore,it is safe to cut vegetables with sharp edged knife.  less

    • June 23, 2021
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    Md Mahedi Hasan A dull knife is actually more dangerous to use than one a sharp knife. Cause a dull knife requires more pressure to cut. It’s increasing the chance of the knife can slip with great force behind it. Sharp knife bites surface much
    readily.
    
    For example,...  moreA dull knife is actually more dangerous to use than one a sharp knife. Cause a dull knife requires more pressure to cut. It’s increasing the chance of the knife can slip with great force behind it. Sharp knife bites surface much
    readily.
    
    For example, if you’re cutting a carrot and the blade is
    really dull. It will need more pressure to get through the carrot. Once it’s through the carrot, there’s a greater chance for the pressure to lead to slippage or a lack of control.
    
    Sharper knife utilizes edge geometry to make a cut. While a dull knife uses force. A sharp knife can glide through materials without much effort. on the other hand, a dull knife is clumsier & less user-friendly.  less

    • June 23, 2021
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    Khadeeza Afruz Shammee Pascal's principle of pressure describes this knife phenomenon. As a scalar physical quantity ,pressure is defined as the force per unit area applied perpendicular to the surface which it is applied .
    The elementary mathematical expression for pressure...  morePascal's principle of pressure describes this knife phenomenon. As a scalar physical quantity ,pressure is defined as the force per unit area applied perpendicular to the surface which it is applied .
    The elementary mathematical expression for pressure is giving by ,
    P = F/A
    Here, P is the pressure , F is the force acting perpendicular to the surface to which this force is applied and A is the area of the surface .
    The same force applied by a sharp knife with a smaller area of contact will exerts a much greater pressure than a blunt knife having a considerable larger area of contact .
    Once a blunt knife is through the object (vegetable or other food), there is a greater chance for the pressure to lead to slippage, skidding and injury. A sharp knife can cut using the edge of the e knife with a safer slicing. Rather, cuts from sharper knives can actually heal more easily than those from dull knives. A sharp knife is a safer knife than a dull knife.  less

    • June 25, 2021
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    Aria Hossain In physics force=pressure/area. In order to cut food, you have to exert force. According to the equation, force is directly proportional to pressure. A blunt knife has more area around the cutting edge than a sharp knife. So a blunt knife requires more...  moreIn physics force=pressure/area. In order to cut food, you have to exert force. According to the equation, force is directly proportional to pressure. A blunt knife has more area around the cutting edge than a sharp knife. So a blunt knife requires more pressure for the same amount of force to be exerted, as the pressure applied increases the chances of the knife slipping and cutting Adam's hand increases. Similarly, a sharp knife would require less pressure to be applied for the same amount of force to be exerted, this not only allows Adam to cut through the food but also prevents the knife from slipping and cutting his hand.  less

    • June 26, 2021
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    Abdullah Julaybib Firstly, you’ll need more pressure to use a blunt knife.
    P=F/A, for a fixed area, force is directly proportional to pressure. If the
    area of a blunt and a sharp knife is same, then doubling the pressure on blunt
    knife means doubling the force....  moreFirstly, you’ll need more pressure to use a blunt knife.
    P=F/A, for a fixed area, force is directly proportional to pressure. If the
    area of a blunt and a sharp knife is same, then doubling the pressure on blunt
    knife means doubling the force.
    
    Secondly,F= {m(v-u)}/t
    
    Assume, two knives have same mass and you take same amount of time to cut. As
    you start from a zero velocity, that means u=0. Ultimately you end up giving
    much more velocity to the blunt than sharp one. So, if you accidentally slip
    while cutting, blunt will hit your finger faster, which might cause a serious
    injury. Sharp knife will have less velocity, which has multiple advantages:
    bringing the sharp knife to rest is easier than blunt one. If you slip, sharp
    knife won’t hit so fast. It may cause a
    little scratch, or you’ll be lucky to stop the sharp knife as soon as it touches your skin (blunt one
    would cause a deep scar).
    
    
    For same time duration, point of contact (finger and knife)
    faces two different momenta. As a result,...    less

    • June 26, 2021
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    Abhay Sunny Pressure= force/area, area of sharp knife is less than area of blunt knife, p is proportional to 1/area, so pressure of sharp knife is more than blunt knife.Don't get confused with the wight and pressuring, pressure is the force on a unit area that is...  morePressure= force/area, area of sharp knife is less than area of blunt knife, p is proportional to 1/area, so pressure of sharp knife is more than blunt knife.Don't get confused with the wight and pressuring, pressure is the force on a unit area that is help perpendicular whereas weight is the force by which the earth attracts everything towards it's center.  

    • June 27, 2021
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    Abdullah Masud This is simply an example of pressure in our daily lives. Here, according to Pascal's law (P = f/a, where pressure is the force applied over a certain area), the sharp knife can exert greater pressure than the blunt knife, as the sharper knife has less...  moreThis is simply an example of pressure in our daily lives. Here, according to Pascal's law (P = f/a, where pressure is the force applied over a certain area), the sharp knife can exert greater pressure than the blunt knife, as the sharper knife has less contact area for the same force than the blunt knife, so the force would be exerted over a smaller area. So in order to cut anything, one would need to apply a larger force in a blunt knife than a sharper knife, and this might result in the blunt knife cutting the hand due to excessive pressure applied by the user while cutting any other objects.  less

    • June 27, 2021
• 
  Sourav Chowhan commented on Fatima Ahmed's classified listing.

  

  Jacob's Alaskan Trip

  Jacob's Alaskan Trip
   
  
  Jacob was a physics student at the University of Texas in Austin, Texas, USA.  His hometown was a small city called Soldotna in the Kenai Peninsula in the US state of Alaska. Soldotna's winter was extremely cold w...

  • June 9, 2021

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    Sourav Chowhan First of all this, I want to say that all are an example of a scientific phenomenon called Friction.
    Friction is the resistance to motion of one object moving relative to another.
    1. Jacob didn't drive that four-wheel car that much so the tire is not...  moreFirst of all this, I want to say that all are an example of a scientific phenomenon called Friction.
    Friction is the resistance to motion of one object moving relative to another.
    1. Jacob didn't drive that four-wheel car that much so the tire is not flat there are some edges which is giving him a grip to drove in that snow. Also, the area of contact between a rubber block and an ice surface is bigger and we know that a bigger surface means a lot of friction. That's why Jacob safely drove that car, If the tire of Jacob were flat then the friction will low and he will not able to drove that car safely.
    
    2.The second phenomenon is happening because those shoes don't have that much grip on that slippery road. The friction area is too small and all the weight is centered on the shoes. So Jacob is slipping on ice. when he is trying to walk on that icy road, it keeps slip because the friction is too low so the friction is not enough to hold him, so he fell on the ground. you will be surprised if you know...    less

    • June 9, 2021
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    Sourav Chowhan that if there is no friction you can't walk or hold something.
    3. the last phenomenon is also an example of friction but there is something you need to know is "energy". Energy can't be destroyed but it can transform one form to another. So...  morethat if there is no friction you can't walk or hold something.
    3. the last phenomenon is also an example of friction but there is something you need to know is "energy". Energy can't be destroyed but it can transform one form to another. So when Jacob did rub hands he was pushing his hands back and forth to increase the friction of hands. When he was rubbing his hands he gives some energy and it was transforming to head and sound due to friction. Rubbing hands produce sounds if you haven't noticed try now. So that was the physics rule playing out there.
    
    You can also put some oil and try to rub then heat and the sound will be decreased because the friction is decreased also.
    I guess I exceed the word limits. Sorry for that, it was like a flow of words from my brain. I could do this all day long. Because I love physics.  less

    • June 9, 2021
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    Farjana Lima 1st part:
    Here, we can see three different events which we can find explanation in physics. So, let’s see:
    At first, when it comes to winter driving, the law of physics is most applicable which is Newton’s first law of motion called “ The law of...  more1st part:
    Here, we can see three different events which we can find explanation in physics. So, let’s see:
    At first, when it comes to winter driving, the law of physics is most applicable which is Newton’s first law of motion called “ The law of intertia”. It states: “An object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force “. On road dry, the friction of the wheels allow changes in speed and direction. But during winter, when the roads are covered with snow or ice, the coefficient of friction is substantially reduced. But, four wheels with good grip improves traction on icy roads. While driving on slippery surface, it's drive system send power to all 4 wheels to maintain traction. Here, friction between the surface and tires creates and maintains grip. For this reason, Jacob's four wheel car was very helpful for driving.  less

    • June 9, 2021
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    Farjana Lima 2nd part:
    Secondly, Jacob's shoes slipped and fell on the ground because the friction on the ice. This friction causes a very thin layer of water to develop on top which causes the slipperiness.
    Thirdly , when Jacob started rubbing his hands, his hands...  more2nd part:
    Secondly, Jacob's shoes slipped and fell on the ground because the friction on the ice. This friction causes a very thin layer of water to develop on top which causes the slipperiness.
    Thirdly , when Jacob started rubbing his hands, his hands become warm because of the friction of the two hands. This friction happens when the resistance of one object rubbing Against the other. So, when there is more friction, the more heat produces.  

    • June 9, 2021
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    Shadman Chowdhury These are the laws:
    
    - The law of Conservation of Energy...  moreThese are the laws:
    
    - The law of Conservation of Energy
    
    - Newton's Law of Universal Gravitation
    
    - The law that states all objects in a state of uniform motion tends to remain in that state unless acted upon by an external force.
    
    In this story, the laws or concepts are how gravity works and it is what kept him on Earth. There was also conservation of small energy because his hands warmed up due to rubbing them together. Finally, there is Kilometers per hour conversion (KPH). In physics, Kph can be used as a metric unit for speed which is why he drove at 25 kilometers per hour. This was calculated using the distance traveled divided by the time taken to travel said distance. It turns out you need Physics knowledge for many things!  less

    • June 9, 2021
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    Taarik Hasan More surface connection produces
    more friction and grip to drive the car on snow. “Law of inertia” and sufficient
    road friction balance the force to hold the car on the...  moreMore surface connection produces
    more friction and grip to drive the car on snow. “Law of inertia” and sufficient
    road friction balance the force to hold the car on the track.
    
    There is a thin melted water surface
    (molecules) that contains less friction (liquid have more kinetic energy) on
    snow. Driving and Walking is possible as car & shoes create sufficient
    friction, which can be explained by the law of “Kinetic friction”.
    
    “Law of motion” and less shoe-snow
    friction generates imbalance on walking.
    
    “Law of Gravity” pulls down when
    Jacob miss the “Kinetic friction” due to the thin liquid surface slider.  less

    • June 9, 2021
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    Taarik Hasan “Thermal resistivity” in his hand gloves holds the body generated heat. There’s insufficient “Thermal conductivity” to spread heat outside the gloves.
    
    Rubbing hands generates uneven heats due to the “Surface friction” of hand skins. There...  more“Thermal resistivity” in his hand gloves holds the body generated heat. There’s insufficient “Thermal conductivity” to spread heat outside the gloves.
    
    Rubbing hands generates uneven heats due to the “Surface friction” of hand skins. There is no equilibrium heat (generated) at the initial phase. Thus the “Zeroth law of Thermodynamics” cannot work. But at a time gaining equilibrium heat on the skin, the law implicates, and he doesn’t feel the increasing temperature (meanwhile he got his nerves).
    
    Otherwise, his hands should be on fire.  less

    • June 9, 2021
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    Mesbah Abir 1. Season change in Alaska happened because of earth's annual motion. As the earth tilts around its axis and different regions of earth face the sun in different particular times, season change happens. 2. The frictional force is more when the...  more1. Season change in Alaska happened because of earth's annual motion. As the earth tilts around its axis and different regions of earth face the sun in different particular times, season change happens. 2. The frictional force is more when the number of tires are more. If Jacob drove a motorcycle, then it would be more tough to drive it. 3. As the car engine gave the vehicle force to accelerate forward, Netwon's law of motion was applicable there. 4.Cause of slipping in the snow was the lack of grip on the shoe. Netwon's third law was applicable there. He put force upon the ice and the ice gave him the opposite resultant force back. But for lacking grip, his shoe slipped. 5. His hand got warm after rubbing because the kinetic energy after rubbing transformed into heat energy. It is mentionable that, the law conservation of energy was applicable throughout the time. 6. The camera could capture the picture because of containing lense and perfect focal length.  less

    • June 10, 2021
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    Zeeshan Ahmed 1. Here, I have explained a few acts of Jacob during his visit to a cold climate and his acts carried a few generalizations of physics. "His four-wheel drive car was very helpful to drive in that weather as it's tires had very good grip on the icy...  more1. Here, I have explained a few acts of Jacob during his visit to a cold climate and his acts carried a few generalizations of physics. "His four-wheel drive car was very helpful to drive in that weather as it's tires had very good grip on the icy and slippery roads." - Referring with the laws of physics and breaking down how the mechanism of how Jacob's four wheeler is quite a better option for driving it over icy surface as while driving a vehicle, the engine generates a force on the driving wheels. This force initiates the vehicle to move forwards. Friction is the force that opposes the tyre rubber from sliding on the road surface. This friction avoids skidding of vehicles. The tread on a tire effects in a higher friction on the road than if the tire was smooth, this allows drivers to have greater control over the movement of their car which allows friction to occur at the maximum potential of the tire, which prevents the car from skidding and losing control.  less

    • June 12, 2021
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    Zeeshan Ahmed 2. "As soon as he started walking on the icy road, his shoes slipped and he fell on the ground." - Next here portraying Jacob's fall through an explanation of physics would be when Jacob was on an icy surface, though basically he don’t have any...  more2. "As soon as he started walking on the icy road, his shoes slipped and he fell on the ground." - Next here portraying Jacob's fall through an explanation of physics would be when Jacob was on an icy surface, though basically he don’t have any friction. Based on the analysis so far, that suggests that Jacob won’t be able to slow down, speed up, or change direction while on ice which is definitely true. When Jacob has sufficient friction, it’s able to slow the foot down to a stop almost immediately, allowing him to put his weight on it, but on an icy surface, the friction doesn’t kick in, and his foot slips out from under him.  less

    • June 12, 2021
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    Zeeshan Ahmed 3. Last but not the least, "So, he quickly started rubbing his hands together to make it warm." This act of Jacob is quite easy to understand by the ways of physics. When he rubs his hands, heat is produced due to friction. This is the force...  more3. Last but not the least, "So, he quickly started rubbing his hands together to make it warm." This act of Jacob is quite easy to understand by the ways of physics. When he rubs his hands, heat is produced due to friction. This is the force which is responsible for resistance in motion on a rough surface. The temperature rises due to the friction making his hands feel warm in that cold climate.  

    • June 12, 2021
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    Tanveer Tausif Ratul The 1st phenomena is the result of "friction" which opposes the vehicle's tyre rubber from sliding on slippery roads.The tread on the tires gripped the road surface while jacob was driving and from common sense,it can be realized that jacob's...  moreThe 1st phenomena is the result of "friction" which opposes the vehicle's tyre rubber from sliding on slippery roads.The tread on the tires gripped the road surface while jacob was driving and from common sense,it can be realized that jacob's car had winter tyres which have deeper tread.The treads grip the ice well enough & larger frictional force is produced there as the area of contact becomes larger.Treads have certain patterns that push
    away the ice and snow.So he could drive safely.If no tread, there will be less friction and driving will become unsafe.
    
    Jacob's shoes slipped because uppermost ice layer contains thin water layer on it.Deeper ice layers stick to each other well but upper layers are very loose as they always remain in contact with air.While walking, jacob's shoes rubbed on ice that caused friction.Friction created heat and heat helped to melt the ice which made it more slippery.
    Frictional force is produced where there is a kinetic force acting between the two...    less

    • June 13, 2021
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    Tanveer Tausif Ratul objects.When Jacob was rubbing his hand,a frictional force was produced which was emitted as heat.That energy didn't not come from the atmosphere, but rather the energy he was spending to overcome the frictional forces.

    • June 13, 2021
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    Abrar Ibne Amin Jim All the situations described above hints at Newton’s 3rd Law & specifically Frictional force.
    
    1) Situation-1, Jacob’s car could travel the road despite the road was slippery. This happened as the tires had enough grooves to increase friction....  moreAll the situations described above hints at Newton’s 3rd Law & specifically Frictional force.
    
    1) Situation-1, Jacob’s car could travel the road despite the road was slippery. This happened as the tires had enough grooves to increase friction. Friction increases due to rough surface, so the tires could make a firm grip on the road and prevent slipping. But if the tires hadn’t enough groove it could felt due to the smooth icy road.
    
    2) 2nd situation where Jacob slipped on the ground due to wearing regular shoes. Although static friction occurred it wasn’t enough to stop slipping as the shoes of Jacob didn’t have enough grip to increase friction.
    
    3) We can see in the 3rd situation that through rubbing his palms together, Jacob felt warm on both palms. This occurred due to sliding friction. The molecules in the palms of Jacob’s started moving quickly. Static electricity was produced due to the sliding friction. Thus this static electricity converted into heat energy. So friction is the root of this.  less

    • June 13, 2021
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    • 1 likes this
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    Abdullah Masud In his wonderful journey, he has met some of the interesting and fundamental laws of physics. First of all, it can be noticed that surface of the ice is slippery. So in order to prevent skidding, the tire of the car had a grooved pattern moulded into the...  moreIn his wonderful journey, he has met some of the interesting and fundamental laws of physics. First of all, it can be noticed that surface of the ice is slippery. So in order to prevent skidding, the tire of the car had a grooved pattern moulded into the rubber surface and are properly inflated which increases the amount of friction force acting on the car and so the car can move smoothly through the ice. Secondly, it is quite good to mention that normal shoes are not built to create a lot of frictional force, so as the ice is slippery, due to less frictional force, Mr Jacob slips.
    In order to prevent slipping on ice, ice boots have quite a good surface that can create a lot of friction with the ice, preventing the user of the boots from sleeping. Thirdly, rubbing hands is also an example of friction. Rubbing hands allows surfaces from both the hands to come into contact and rub against each other and this movement causes friction force to convert the kinetic energy of the hands into the thermal...    less

    • June 13, 2021
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    • 1 likes this
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    Shafaat Shams 1. The snowy road
    is so slippery and doesn’t have enough grips. Jacob’s Car was useful there; it
    gives power to all 4 wheels at the same time. With the help of heavy car
    weight, those 4 tires made 4 friction points. The more friction it made,...  more1. The snowy road
    is so slippery and doesn’t have enough grips. Jacob’s Car was useful there; it
    gives power to all 4 wheels at the same time. With the help of heavy car
    weight, those 4 tires made 4 friction points. The more friction it made, the
    more grip the car got. He might use frictional tires for getting more grips. In
    consequence of that, he moved easily.
    
    
    2.
    On the ice, there are
    unstable water molecules that are weakly bonded to the crystal. When Jacob
    walked on ice, the molecules began to move freely. His shoes had not enough
    friction point to grip in ice. As a result, his foot did not get enough static
    friction force to hold him in place & he slipped.
    
    
    3.
    Jacob’s hands came in contact & move relative to each
    other; the friction between the two hand surfaces converts kinetic energy into
    thermal energy. Thermal energy made his hand wormer and made it safe from being
    frozen.  less

    • June 14, 2021
• 
  Fatima Ahmed: Thanks Sourav for your Alhambra wiki project. The best part of your article is the personal story you have shared since it resonates so much with us! This is the kind of things we like in our articles: personal stories and narratives to convey ideas....  moreThanks Sourav for your Alhambra wiki project. The best part of your article is the personal story you have shared since it resonates so much with us! This is the kind of things we like in our articles: personal stories and narratives to convey ideas. So well done on that one. Formatting is also nice. Please keep an eye on the wiki submission deadline next time. Other than that everything else is good! Here is your article:  

  

  Coexistence of us - Coolinventor Wiki

  Coexistence of us - Coolinventor Wiki

  • October 8, 2020

  • Bj Zishan and Sourav Chowhan like this.
• 
  Fatima Ahmed: Hi Sourav, good work on the 'Retain the Talent' wiki! You provided good information, formatting is nice, and article is more than 85% original! Try to add some personal stories in your wiki next time if possible. Our admins prefer wikis in narrative...  moreHi Sourav, good work on the 'Retain the Talent' wiki! You provided good information, formatting is nice, and article is more than 85% original! Try to add some personal stories in your wiki next time if possible. Our admins prefer wikis in narrative style. Here is your wiki:  

  

  Reserve the local talents is possible or not ??? - Coolinventor

  Reserve the local talents is possible or not ??? - Coolinventor Wiki

  • August 29, 2020

  • Bj Zishan and Sourav Chowhan like this.
• 
  Fatima Ahmed: Hi Sourav, thanks for the pollution article. It is 100% unique, so that is very nice and the formatting of the article is good. It would have been better if you could have elaborated your new proposal or technology in a bit more details because that is...  moreHi Sourav, thanks for the pollution article. It is 100% unique, so that is very nice and the formatting of the article is good. It would have been better if you could have elaborated your new proposal or technology in a bit more details because that is what we were mostly interested in. Some more ideas on how you would encourage everyone to use that new technology would have been better. Overall, good article as it is 100% your original writing and you are one of the few people to do that. Here is your article:  less

  

  Way to Save our planet from Air pollution with the latest techno

  Way to Save our planet from Air pollution with the latest technology - Coolinventor Wiki

  • July 28, 2020

  • Nishat Tamanna likes this.
  • 
    Sourav Chowhan Thank you so much

    • July 29, 2020
  • 
    Sourav Chowhan Next time i will try to put every details about my new ideas

    • July 29, 2020
• 
  Sourav Chowhan commented on Fatima Ahmed's photo.

  

  The other day, a random horticulture show came up which reminded us of Shykh Seraj. Pretty much all Bangladeshis's know him today as he had been doing agricultural/horticulture shows since the 80s. His job is to find out problems and solutions that many...  moreThe other day, a random horticulture show came up which reminded us of Shykh Seraj. Pretty much all Bangladeshis's know him today as he had been doing agricultural/horticulture shows since the 80s. His job is to find out problems and solutions that many gardeners and farmers face. Horticulture can be difficult if there are harsh weather, large cost of farming technology, and transportation issues. In addition, beginning gardeners might get frustrated as it takes knowledge, time, effort and the perfect combination of water, light, temperature, humidity, and nutrients to grow perfect plants every time. Our quiz this week is, how can you invent a technology that can solve all these horticultural problems and speed up the horticultural process? Just a reminder, that the internet has tons of solutions to these problems, but we will award $3 to the person who comes up with the wildest idea that has not been mentioned anywhere. Please comment below with your answer very BRIEFLY as this is not a wiki!  less

  • July 8, 2020

  • 5 people like this
  • 
    Lubaba Islam Rimi As we know this from our childhood that is, Bangladesh is an agricultural country and having very fertile soil,so we can arrange a field training time period(FTTP) when the farmers are free..In this training period,,they can learn practically on field...  moreAs we know this from our childhood that is, Bangladesh is an agricultural country and having very fertile soil,so we can arrange a field training time period(FTTP) when the farmers are free..In this training period,,they can learn practically on field about the best way to cultivate the crops at a higher rate than before by applying hybrid seeds.They must to know the harmfulness about pesticides and inventing new environmental protection from Dangerous pests and others..We can build up a researchers team for upgrading our harvest level...Need to do a huge research about the cultivation of the crops and update the hybrid system for more healthy harvest.  less

    • July 8, 2020
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    • 2 like this
  • 
    Shahbaj Nihan The main component of agricultural work is soil. Crop yield dynamics depend on soil capacity, readiness and suitability. Different types of crops require certain soil components. If we divide the area based on soil material then we can improve the...  moreThe main component of agricultural work is soil. Crop yield dynamics depend on soil capacity, readiness and suitability. Different types of crops require certain soil components. If we divide the area based on soil material then we can improve the agricultural work.
    If our research team collects soil samples from different parts of Bangladesh and separates the zones based on the soil composition and identifies the zones, then the farmers will be able to identify the right land for their crops and cultivate at a higher level.  less

    • July 8, 2020
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    • 1 likes this
  • 
    Bj Zishan The good news is that technology already provides tangible solutions to some of these challenges And now i am showing u them :
    Automation in the farming: What if there was also a robot that automatically seeds, waters, weeds, and harvests your plants?...  moreThe good news is that technology already provides tangible solutions to some of these challenges And now i am showing u them :
    Automation in the farming: What if there was also a robot that automatically seeds, waters, weeds, and harvests your plants? That’d be cool, right? It’s just one way technology can be used for farming. A good example is the FarmBot but It’s still in its infancy, but the technology promises to achieve a level of efficiency in food production that a human could never reach.but its ia matter of sorrow that it is not available in our country
    Artificial Intelligence in farming :Remote sensors, satellites, and UAVs can gather information 24 hours per day over an entire field. The idea is to allow farmers to gain a better understanding of the situation on the ground through advanced technology (such as remote sensing) that can tell them more about their situation than they can see with the naked eye. And not just more accurately but also more quickly...    less

    • July 8, 2020
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    • 1 likes this
  • 
    Farjana Lima 1st part:
    As a beginning gardener a person who hasn’t enough knowledge about farming,he could look over farming apps through his phone. As we know there are many apps which includes about insect , pesticide,soil, weather and so on. But there are many...  more1st part:
    As a beginning gardener a person who hasn’t enough knowledge about farming,he could look over farming apps through his phone. As we know there are many apps which includes about insect , pesticide,soil, weather and so on. But there are many people who don't have Android phone. So a digital handnote can help them which can be short form off tab that can simply fit our hand and that will have only agricultural information. Which merket value should be low so that everyone could buy it. That will help beginning gardeners and also other farmers.  less

    • July 8, 2020
  • 
    Farjana Lima 2nd part,
    As we all know government collects paddy from farmers. If Government collect oother crops like wheat, corns etc then it will help farmers. For this, there should be a booth in every one or two villages which will have test the quality of crops...  more2nd part,
    As we all know government collects paddy from farmers. If Government collect oother crops like wheat, corns etc then it will help farmers. For this, there should be a booth in every one or two villages which will have test the quality of crops and buy crops from farmers. Then transportation costs will be decreased. For this reason, there will be no middleman and farmerswill get right price and they will provide pesticide free crops to get better price.  

    • July 8, 2020
  • 
    Aminul Islam I think, most of the agricultural problems will be solved if we use "Agroecology" in the agricultural sector.
    Agro-ecological concepts are primarily based on traditional and local knowledge, and its corresponding cultures. Agroecology combines this...  moreI think, most of the agricultural problems will be solved if we use "Agroecology" in the agricultural sector.
    Agro-ecological concepts are primarily based on traditional and local knowledge, and its corresponding cultures. Agroecology combines this knowledge with the findings and methods of modern science. Agroecology is both a science and a set of practices. It was created by the convergence of two scientific disciplines: agronomy and ecology.
    The strength of agroecology lies in the combination of ecological, biological, and agricultural sciences, along with medicine, nutritional and social sciences. It incorporates the knowledge of all stakeholders. Original source Their practical contribution to solving complex problems with the help of locally available resources is crucial. Apart from water, soil, and sun, other resources that are particularly important are the natural and cultivated diversity of plant species and varieties, along with the knowledge of people and communities on how these plants interact.  less

    • July 8, 2020
  • 
    Farjana Lima 3rd part,
    Traditional farming knowledge should also use with digital farming system.. like seed collection. We should collect ideas from elder farmers and apply in new technologies for this reason there should be a team who will collect knowledge from...  more3rd part,
    Traditional farming knowledge should also use with digital farming system.. like seed collection. We should collect ideas from elder farmers and apply in new technologies for this reason there should be a team who will collect knowledge from elder person and supply that ideas to inventors.  

    • July 8, 2020
  • 
    Sourav Chowhan Now a days you won't found any one who doesn't have a smart or android phone.There maybe exception that a farmer doesn't use smartphone but surely his son/relative does. Everyone is using technology. There are many apps in the playstore market but there...  moreNow a days you won't found any one who doesn't have a smart or android phone.There maybe exception that a farmer doesn't use smartphone but surely his son/relative does. Everyone is using technology. There are many apps in the playstore market but there are lack of information. I would like to use a simple mobile cross-platfrom or a web app in which in can easily update data of cultivating different vegetables.There will be a easy solution of when to plant seed and when to apply fertilizer. There are many group in facebook and other social media in which anyone can buy and sell products. We can merge them and give them opportunity to resell in our New app. This is how we can give farmers their fair price of vegetable and full-fill the demand of gardeners.  less

    • July 8, 2020
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    Shorna Chowdhury I think we can have a website or app where a page will contain the soil type,, favourable plant for that zone and daily temperature update of specific zone will be shown.every zone will be divided like this..
    then there will be a segment containing...  moreI think we can have a website or app where a page will contain the soil type,, favourable plant for that zone and daily temperature update of specific zone will be shown.every zone will be divided like this..
    then there will be a segment containing about requirements for every plant for their optimum growth. Thus it will be helpful for anyone to grow plant at ease. . the site or app may have the experience share part, Q & A part also.  

    • July 8, 2020
  • 
    Nishat Tamanna I am a gardener myself and of course, all of these problems related to gardening irritated me to their most. Combining knowledge and making time to apply those at right time is almost impossible. I wish there would be some technology where there would be...  moreI am a gardener myself and of course, all of these problems related to gardening irritated me to their most. Combining knowledge and making time to apply those at right time is almost impossible. I wish there would be some technology where there would be a place for planting. I could fix the manual (the time and amount of watering, amount of light etc) or just by adding the plant name informations could be set from a mobile app or website. The rest care would be done with the help of sensors. That system need to be capable of sensing the light and open or close a hood anytime. Hood will have different filtering capacity to pass perfect light.It will also be able to generate light that is lacking.Again, it would sense soil humidity and could water the plant itself from attatched water supply. The machine should be able to have multiple input so that at a time, number of different plants could be handled. In this method,plants with similar manual need to be planted together.  less

    • July 8, 2020
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    nishi kabbo As a new gardener, i say this depends on your living weather, ground, watering, fertilizer, etc. At first know that, what types of plant should be grow here and how to care of them. Proper care is the right way to speed up the plants. See that what is...  moreAs a new gardener, i say this depends on your living weather, ground, watering, fertilizer, etc. At first know that, what types of plant should be grow here and how to care of them. Proper care is the right way to speed up the plants. See that what is the problems of plants and how remove it easily. To let a normal person, most of them know how to make a fertilizer as it has a ratio to NPK system and water process, clean weeds, soil exchange, spread sand, sun light, insecticides control etc. Since most of the people have not a lot of money, i think if they have to choose this primary system, it will be benefit for speeding up his/her horticulture. Also see the programmes which takes by Sheikh Siraj Sir.  less

    • July 8, 2020
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    Noorjahan Binte Farhana My grandfather was a farmer, we have a lot of acres property where we do our farming. we plant rice, pulse, mustard, a lot of green vegetables. Fresh water is important for farming but if you can't supply fresh water it create horticultural problems. so...  moreMy grandfather was a farmer, we have a lot of acres property where we do our farming. we plant rice, pulse, mustard, a lot of green vegetables. Fresh water is important for farming but if you can't supply fresh water it create horticultural problems. so we can use the sun to generate fresh water. High tech sensor will be also a good idea to cope up with these problems. High-tech sensors are another related technology that will mature along with changing food production. These sensors will have to collect massive amounts of data about, for example, the nutritional value and moisture in soil, about plant growth, and about light.  less

    • July 8, 2020
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    Shahriar Dipto As a developer, i want to make an app which is named "Alarm farm". It will have following features-
    1. Remote watering: Wherever the gardener is, just by taping 'water' option, plant will be watered automatically.
    2.Water and fertilizer information: App...  moreAs a developer, i want to make an app which is named "Alarm farm". It will have following features-
    1. Remote watering: Wherever the gardener is, just by taping 'water' option, plant will be watered automatically.
    2.Water and fertilizer information: App will have all of the needed information for the beginner gardeners.
    3. Sharing: Gardeners will be able to share their plant pictures and videos so that other gardeners can help or be helped by discussing between them.
    4. Digital Plant doctor: Volunteer or paid specialists will also be connected through this app. They even can pay a visit to the garden if there is some issues.
    5. Beta feature: The most interesting part of the app will be this. Researcher around the world may want to have some research on plants changing their environments but can't carry their own. Interested gardener can sign up for such experiments with their plants.Thus they can invent new ways for getting healthy plants.
    So this app with additional camera, sensor and network...    less

    • July 8, 2020
  • 
    Abhay Sunny I would suggest Indoor Vertical farming. Indoor vertical farming can increase crop yields, overcome limited land area, and even reduce farming’s impact on the environment by cutting down distance traveled in the supply chain. Indoor vertical farming...  moreI would suggest Indoor Vertical farming. Indoor vertical farming can increase crop yields, overcome limited land area, and even reduce farming’s impact on the environment by cutting down distance traveled in the supply chain. Indoor vertical farming can be defined as the practice of growing produce stacked one above another in a closed and controlled environment. We can also use RFID technology. There are many uses for RFID technology in agriculture. Bales of hay can be tagged, capturing the date harvested, the field where it was harvested, the temperature, weight, moisture level and the nutritional information to be captured and stored. RFID has many potentials that busy farmers are seeking.  less

    • July 8, 2020
  • 
    Md. Mushfiq Rahman Internet of
    things (IoT) is a promising industry. We can use sensors placed along the farms
    and connected to a central node. The node can be connected to a cloud server.
    Information like humidity, water level, moisture can be displayed on a...  moreInternet of
    things (IoT) is a promising industry. We can use sensors placed along the farms
    and connected to a central node. The node can be connected to a cloud server.
    Information like humidity, water level, moisture can be displayed on a web
    site. Based on the information a level of instructions can be displayed. For
    example : if the water level decreases, the web site will tell you to water the
    specific regions. This will help save a lot of water if used in a large scale. To
    make the technology environment friendly, we can connect the nodes to battery
    packs connected by a solar panel. The sensors itself requires a lot less energy
    and the project can become energy efficient.  less

    • July 9, 2020
  • 
    Animesh Paul A potter never thinks of soil as just soil, for him, the soil is an art. In his creation the soil becomes art.
    The reason for the artist's creation is, his clear ideas, energy, aspirations, and above all his thoughts and all these combined to
    make the...  moreA potter never thinks of soil as just soil, for him, the soil is an art. In his creation the soil becomes art.
    The reason for the artist's creation is, his clear ideas, energy, aspirations, and above all his thoughts and all these combined to
    make the clay appear in a certain shape. He would never have been able to complete the work if the artist's thinking had not been arranged.so we need to cut our coat according to our cloth. We all know that
    no man is born wise.
    Until we can’t able to put our thoughts, energy, talents into a chalice whole process will ever never complete.
    If we can assemble our wisdom, knowledge time efforts these will help a tree to get the perfect amount of light, temperature, humidity, and nutrients. As a result, we get more crops.
    
    If we can invent or use such a technology medium like Facebook grouping, video callings, or any kind of communicating apps, where farmers can identify what kind of problem exactly they are facing. From there easily can ask why it happening to an...    less

    • July 9, 2020
  • 
    Ratib Faiaz I believe technologies
    play a very big role in courtier’s socio-economic development. In addition in
    previous many scientists invent modern technologies for various industries
    machines. As part of that, I have some innovative plans generate on my...  moreI believe technologies
    play a very big role in courtier’s socio-economic development. In addition in
    previous many scientists invent modern technologies for various industries
    machines. As part of that, I have some innovative plans generate on my mind
    that is robotic technology will be used in many develop and developing
    countries. The robot cost will be very cheap. It could adjust any weather. I
    will try to encourage young talented scientists on my robotic technology plans.
    New ideas that I generate on my robotic agriculture systems. The robot size
    will be 7 cm long, the body movements of the robot will be very realistic. It must
    have to charge 5 hours regular charge it will give 30 hours of work backup. As
    like many pandemic situations rising in our world. Farmers our best assets for
    our nation..To make easier their work, the can use the robotic technology in
    agriculture, as well as in cultivating fruits and vegetables. The robot will
    have special sensors that can reduct the crops insects which...    less

    • July 9, 2020
  • 
    Ajoy DebNath As far as I know, Government provides an internship opportunity for the students having agricultural study as educational background. It’s kind of research work where they have to get some analysis results. These includes analyzing about soil, insects,...  moreAs far as I know, Government provides an internship opportunity for the students having agricultural study as educational background. It’s kind of research work where they have to get some analysis results. These includes analyzing about soil, insects, weather, seasonal problems, uses of different farming machine etc. But these research work hardly serves the farmers. Because the implementation of those analytical study is not applied properly in agricultural/horticultural sectors. My solution for above mentioned problem is to provide a timely analytical report for specific soil, for
    specific crops, for specific season, for specific weather etc. to the farmers
    and to help them farming according to the report. If a farmer can understand
    the nature of his farm from the report of at least 10 years, they can go through
    every phase of difficulty in farming.  less

    • July 9, 2020
  • 
    Sharmin Sultana Technology is really paving a method into the future of horticultural in another ways too.I'm regarding in drone technology. It has taken steps the most high-quality technological growth in the world of agriculture so far. Last year,we had a burning ...  moreTechnology is really paving a method into the future of horticultural in another ways too.I'm regarding in drone technology. It has taken steps the most high-quality technological growth in the world of agriculture so far. Last year,we had a burning program that managed drone,remote surmising and all to aid identify and demolish a hazardous invasive tree species in Denmark informed as the Genie Hogweed.
    
    I'm certain - namely by drones,robotics and ruled farming that we will instantly unlock even more technologies which will avail all balance of nutrition outturn.  less

    • July 10, 2020
  • 
    mokarom hossain We can use this word as a synonym of gardening. Horticulture is the practice of garden cultivation and management for food and beauty for decoration.
    Horticulture is most important to our daily living. To keep world fit for our living we have to...  moreWe can use this word as a synonym of gardening. Horticulture is the practice of garden cultivation and management for food and beauty for decoration.
    Horticulture is most important to our daily living. To keep world fit for our living we have to concentrate about horticulture. Human body required vitamins, minerals, proteins, energy etc. which is supplied by horticultural crop. And flower which is the key element of beauty, is also cultivated in horticulture. Beside this, it also solve the unemployment problem. In order to benefit from horticulture, one needs to know the method of planting seedling and use of modern scientific instruments. Therefore horticulture is important for health, wealth, hygene and happiness.  less

    • July 10, 2020
  • 
    Meherun Tonni Nowadays many people are interested in horticulture. But most of them face many problems in horticulture. As I am a gardener I face those problems too. So I found a way to solve these problems. I have a little pond at my rooftop garden. So I made a plan...  moreNowadays many people are interested in horticulture. But most of them face many problems in horticulture. As I am a gardener I face those problems too. So I found a way to solve these problems. I have a little pond at my rooftop garden. So I made a plan to make a bio ecology system in my garden. For planting the first thing needed for watering the plants , I fixed an automation system on motor. The motor will provide water to the tank  

    • July 11, 2020
  • 
    Meherun Tonni Next I joined the tank line with the pond. 3rd I covered all the plant area with a thin pipe . The process is when the motor will start through a reminder 3 times day . This water will first go to the fish pond. Then the new water will be stored there...  moreNext I joined the tank line with the pond. 3rd I covered all the plant area with a thin pipe . The process is when the motor will start through a reminder 3 times day . This water will first go to the fish pond. Then the new water will be stored there and the previous water will go into the tree through that thin pipe.  

    • July 11, 2020
    • -
    • 1 likes this
  • 
    Meherun Tonni Next I joined the tank line with the pond. 3rd I covered all the plant area with a thin pipe . The process is when the motor will start through a reminder 3 times day . This water will first go to the fish pond. Then the new water will be stored there...  moreNext I joined the tank line with the pond. 3rd I covered all the plant area with a thin pipe . The process is when the motor will start through a reminder 3 times day . This water will first go to the fish pond. Then the new water will be stored there and the previous water will go into the tree through that thin pipe.  

    • July 11, 2020
  • 
    Meherun Tonni And in this way the tree will get water on time with this same process . And I made a shelter over the plants and made holes on this. In this way they will get proper light and humidity and will prevent over temperature. That is how In my roof top my...  moreAnd in this way the tree will get water on time with this same process . And I made a shelter over the plants and made holes on this. In this way they will get proper light and humidity and will prevent over temperature. That is how In my roof top my plants will get proper light water, temperature, humidity, and nutrients to grow perfect plants every time.  

    • July 11, 2020
  • 
    Nyhan Arbab AS like I love agricultural works, it just makes me to the hobby. I have 3 acres of
    land behind the city. I cultivate various seasonal vegetables in my land. I
    just clearly saw that most of my vegetables spoiled by insects. I had some
    ideas generate on...  moreAS like I love agricultural works, it just makes me to the hobby. I have 3 acres of
    land behind the city. I cultivate various seasonal vegetables in my land. I
    just clearly saw that most of my vegetables spoiled by insects. I had some
    ideas generate on my mind. How will i remove these insects. The other reason
    was some vegetables didn't suite the weather. I made a plan to do a greenhouse. I
    just spend the minimum amount of money. For my test transmission, i used few amount
    of land to produce organic vegetables. It took 1 month to build up. I produced
    huge amount of green vegetables. There are may benefit from using greenhouse farming it increase rapidly,
    maximizing profits. It is very beneficial for our home nursery those who love
    gardening. There are many ways to build up greenhouse farming. I used bamboo and wood and other materials used to
    make greenhouse farming. The benefits of doing greenhouse farming, the temperature
    declined.  less

    • July 12, 2020
  • 
    Kabid Hasan We cannot change natural things like humidity, temperature and so on. But surely, we can adjust.
    The following to simple steps will make horticulture handy.
    
    1. Just like "International Movie Database (IMDb)", we need to create a database for...  moreWe cannot change natural things like humidity, temperature and so on. But surely, we can adjust.
    The following to simple steps will make horticulture handy.
    
    1. Just like "International Movie Database (IMDb)", we need to create a database for horticulture where every possible corps along with its most suitable natural property (humidity, temperature etc) and market values will be included.
    
    2. Spreading soil testing labs locally. Even small labs can be set up in vehicles to go to distant places.
    
    A farmer will get his soil sample tested from the nearest lab. He will enter his soil properties and environmental properties to the database through its API-generated mobile app, and the database will suggest the most suitable crop of highest market value according to his condition.
    
    The database will also provide him the scientific methods to produce that crop which will eradicate the 'lack of sufficient knowledge ' problem.  less

    • July 29, 2020
• 
  Farjana Wahid is now friends with Sourav Chowhan.

  • July 8, 2020
• 
  Abdullah Hel Safi is now friends with Sourav Chowhan.

  • July 6, 2020
• 
  Sourav Chowhan is now friends with Shahin Alom.

  • July 3, 2020
• 
  Noshin Tasnia is now friends with Sourav Chowhan.

  • July 2, 2020
• 
  Fatima Ahmed: Hi Sourav, your Africa wiki project was very nice! First of all, the pictures you gave in the article and the story behind those pictures was truly amazing! It helped us to be more interested in your project. Great pictures to keep your readers engaged...  moreHi Sourav, your Africa wiki project was very nice! First of all, the pictures you gave in the article and the story behind those pictures was truly amazing! It helped us to be more interested in your project. Great pictures to keep your readers engaged and telling the story behind them. Also, your step by step, concise and easy to understand guide to alleviate poverty was a good read for us! Thanks for taking the time to write this project. Sharing it with everyone here:  

  

  How to get rid of poverty from Africa - Coolinventor Wiki

  How to get rid of poverty from Africa - Coolinventor Wiki

  • June 30, 2020

  • Shahriar Dipto likes this.
  • 
    Sourav Chowhan Thank you

    • June 30, 2020
• 
  Sourav Chowhan commented on Fatima Ahmed's blog entry.

  

  The Africa Project

  The Africa Project
   
  
  Please watch this video to get the topic of the next wiki...  moreThe Africa Project
   
  
  Please watch this video to get the topic of the next wiki project. 
  If you want to work on this project, please click on the 'Accept Project' button on this page by June 19th. 
  You will get anywhere from $2 to $10...  

  • June 26, 2020

  • 4 people like this
  • 
    Md. Mushfiq Rahman I cannot link my wiki here. The form is not clickable. What do i do?

    • June 26, 2020
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    • 1 likes this
  • 
    Abdullah Hel Safi Fatima Ahmed Mam, I am also unable to paste my wiki project link in project page. 2 day running. Please solve the issue. worked hard on this project.

    • June 26, 2020
  • 
    Sourav Chowhan I can't give my wiki link in this project..

    • June 26, 2020
    • -
    • 1 likes this
  • 
    Fatima Ahmed OK, since several of you are having the same problem, there could be an issue with our site. You have to be logged in to paste the link. But if you are tried that after logging in and still does not work, then please ignore this step. As long as you...  moreOK, since several of you are having the same problem, there could be an issue with our site. You have to be logged in to paste the link. But if you are tried that after logging in and still does not work, then please ignore this step. As long as you wrote the wiki in our wiki page, you are fine. Sorry for the inconvenience.  

    • June 26, 2020
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    • 4 like this
• 
  Sourav Chowhan commented on Fatima Ahmed's photo.

  

  Our website will continue with different riddles as long as the wiki project is going on. We have seen that the coronavirus death numbers are different in different countries. Some developed countries have far worse death rates than other developed...  moreOur website will continue with different riddles as long as the wiki project is going on. We have seen that the coronavirus death numbers are different in different countries. Some developed countries have far worse death rates than other developed countries even though they all followed the same social distancing techniques, wore masks and followed strict lockdown rules. Scientists are trying to find out more about this reason before they release the corona vaccine. Our question to Coolinventor members is, why do you think one developed nation has more deaths than another developed nation even though they all followed the same social distancing strategy, practiced good hygiene wearing masks, and followed strict lockdown rules? There is a surprising reason for this...please share your insights in the comment below and the person with the best answer will get $3.  less

  • June 24, 2020

  • Shorna Chowdhury likes this.
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    Tamzid Rahman One developed nation has more deaths than another developed nation even though they all followed the same social distancing strategy, practiced good hygiene wearing masks, and followed strict lockdown rules because of the immune system of the people I...  moreOne developed nation has more deaths than another developed nation even though they all followed the same social distancing strategy, practiced good hygiene wearing masks, and followed strict lockdown rules because of the immune system of the people I think. The immune system of one developed nation is different from other one for their food habit. May be people from one country are practiced with fruits, fiber rich foods for their daily life, but people from another country are practiced with carbohydrate rich foods, junk foods & less fruits. This virus can cause deaths only with the people having less antibody & weak immune system. Another thing is the environment. Winter based country people are affected much than summer based country people because the virus can sustain for a long time in cold weather. Thats all. Thank you!  less

    • June 22, 2020
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    nishi kabbo I think if they follow the following rules, death will decrease a bit.Despite being aware, the corona virus is spreading. There are some problems such as don't taking a bath from outside and washing used items, don't washing hands thoroughly after a...  moreI think if they follow the following rules, death will decrease a bit.Despite being aware, the corona virus is spreading. There are some problems such as don't taking a bath from outside and washing used items, don't washing hands thoroughly after a while, as it is more common in cold items, not eating hot and vitamin C rich foods.immunity is too much low, don't soak in hot water for 30 minutes before eating any food. And last one is,The mind must be strengthened.  

    • June 22, 2020
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    Aminul Islam The death rate is different among countries, why? I think, two reasons are responsible for this equation, one is the testing rate and another is different kinds of coronavirus, that creating by mutation process.
    We know, researchers have identified 198...  moreThe death rate is different among countries, why? I think, two reasons are responsible for this equation, one is the testing rate and another is different kinds of coronavirus, that creating by mutation process.
    We know, researchers have identified 198 mutations in a survey conducted by University College London in the United Kingdom. This huge amount of mutations are creating these different situations.
    
    
    Now we think about coronavirus testing rate, then we see, South Korea has done successfully is to isolate everyone who is potentially affected and everyone involved with that person through the maximum use of technology. The biggest issue, in this case, is testing. South Korea, because of their testing capabilities, has put all potentials under testing in such a way that they do not have to launch lockdowns like other countries.  less

    • June 23, 2020
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    Aminul Islam 2nd part,,
    
    Testing is one of the biggest causes of low mortality in Germany. Germany is testing at a massive rate across the country. Germany is the only country in Europe and America to have tested wherever possible in their country.
    
    Germany has been...  more2nd part,,
    
    Testing is one of the biggest causes of low mortality in Germany. Germany is testing at a massive rate across the country. Germany is the only country in Europe and America to have tested wherever possible in their country.
    
    Germany has been testing the disease at a massive rate since the beginning of the epidemic, so they have been able to identify people with or without symptoms. While the rest of Europe, especially Italy, Spain, the USA, and the United Kingdom, have not tested extensively since the beginning, they have been testing people with obvious symptoms at one time due to virus spread across the country and due to limitations. As a result, the actual number of victims is very different from the number published or determined.  less

    • June 23, 2020
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    Aminul Islam 3rd part,
    
    This is why the actual number of victims is much higher than the total number of victims in Italy, Spain, or the United Kingdom. We know from the beginning that there are silent carriers of the novel coronavirus, among which no symptoms are...  more3rd part,
    
    This is why the actual number of victims is much higher than the total number of victims in Italy, Spain, or the United Kingdom. We know from the beginning that there are silent carriers of the novel coronavirus, among which no symptoms are seen, so many of the victims are excluded from the test due to testing restrictions or policies in different countries. So we see different deaths in different countries due to the number of tests and the actual number of victims.  

    • June 23, 2020
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    Shorna Chowdhury I think some developed nations face more deaths due to covid-19 than others because - Most of those countries' working population consists of middle aged persons. And this aged people are more vulnerable to covid-19 consequences due to having less...  moreI think some developed nations face more deaths due to covid-19 than others because - Most of those countries' working population consists of middle aged persons. And this aged people are more vulnerable to covid-19 consequences due to having less immunity and maybe having underlying other health conditions as well. This leads them to deadly consequence of covid-19 easily after exposer....... Apart from this there can be other causes as well like negligence of politicians on following scientific advices,, comparatively less testing than others,, not declining international tradings,, and obviously delaying in taking proper measurements...  less

    • June 23, 2020
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    Md Ripon Islam Yes, Corona Virus costing killing many life everyday. When the first corona pandemic crash into our planet, it attack the developed country. Statistics says that developed country face many deaths than the developing and poor country. But gradually the...  moreYes, Corona Virus costing killing many life everyday. When the first corona pandemic crash into our planet, it attack the developed country. Statistics says that developed country face many deaths than the developing and poor country. But gradually the score going up and up everyday. More than 4 lakh people are died worldwide.
    
    Scientist are try to prevent the spread of the virus. But somehow the implantation is not take break anyway.
    
    I think wearing mask and maintaining social distance is not enough for hinder the virus. That's why developed countries are failed about controlling the virus. They obey every instruction given by WHO. But no result appear at all.
    
    My opinion about why every developed country has different death score is rely on some points.
    ** The nature of the virus is changed time to time. So they get the power for survive in any place.
    
    ** Immunity of the people of developed country is not the same of developing or poor country. They live in a rich and easy life. So they don't...    less

    • June 23, 2020
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    Nishat Tamanna Coronavirus death rates are uncomparable among countries. Some countries are showing more death rates than others as- 1. Coronavirus has undergone mutations.Some strains are more dangerous than the others. 2. The more the testing the more the...  moreCoronavirus death rates are uncomparable among countries. Some countries are showing more death rates than others as- 1. Coronavirus has undergone mutations.Some strains are more dangerous than the others. 2. The more the testing the more the numbers.Again,Death reporting policy is different among countries.UK counts all the numbers who were tested positive and died after that- the underlying condition isn't considered. Some countries counts deaths only deaths at hospital or confirmed cases. 3. Developed countries has more aged persons as the life expectancy is greater and the elders have weak immune system. 4. Culture and lifestyles must have an strong impact.This is still quite unclear to scientists.  less

    • June 23, 2020
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    Sourav Chowhan I think this differences between one nation to another is because of genome sequence and mutation.Recent research detected some hotspots of mutation in the SARS-CoV-2 virus genome. Researchers found that the Asian, European, American and Russian strains...  moreI think this differences between one nation to another is because of genome sequence and mutation.Recent research detected some hotspots of mutation in the SARS-CoV-2 virus genome. Researchers found that the Asian, European, American and Russian strains coexist regarding the attack in any particular region or country. It is also observed that the mutation in one country or region is different from that of other countries. This all bacause of immunity system and environment. As you can compare to Bangladesh which is in tropical zone and USA where death rate is higher than us is in temparate zone.As recent research says that this virus is more stable in low temperature. But the rate of infected people are same,but this virus cause less damage because of immunity system. Immunity system deals a great job when it comes to a virus that have no cure and no vaccine. That's why the death rate in different countries are different.  less

    • June 24, 2020
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    Shahriar Dipto The Corona confusion is how to make sense of numbers. The numbers of infected and death varies greatly, yet they can't tell the actual scenarios of countries. 'How willingly people get tested and Who gets tested' are two of the main factors. There may be...  moreThe Corona confusion is how to make sense of numbers. The numbers of infected and death varies greatly, yet they can't tell the actual scenarios of countries. 'How willingly people get tested and Who gets tested' are two of the main factors. There may be a high number of unreported cases in the country, both among infections and those people who are dying following an infection. In contrast, in some countries high testing followed by strict isolation kept the numbers low. Timing of epidemic is the factor which tells us to wait until the end of pandemic. Again, most countries that were affected first couldn't handle the situation. Population pyramid tells that developed countries have more number of aged people. As we age, our immunity weakens and with other preoccupied diseases at that stage they can't make it to survive. However, It is more difficult to have confidence in data that comes from countries with tightly controlled political systems and their policy to declare a death as a death from Corona.  less

    • June 24, 2020
• 
  Sourav Chowhan joined the group Coolinventor Contributors

  • June 20, 2020
• 
  Sourav Chowhan liked Fatima Ahmed's blog entry.

  

  The Africa Project

  The Africa Project
   
  
  Please watch this video to get the topic of the next wiki...  moreThe Africa Project
   
  
  Please watch this video to get the topic of the next wiki project. 
  If you want to work on this project, please click on the 'Accept Project' button on this page by June 19th. 
  You will get anywhere from $2 to $10...  

  • June 19, 2020

  • 4 people like this
  • 
    Md. Mushfiq Rahman I cannot link my wiki here. The form is not clickable. What do i do?

    • June 26, 2020
    • -
    • 1 likes this
  • 
    Abdullah Hel Safi Fatima Ahmed Mam, I am also unable to paste my wiki project link in project page. 2 day running. Please solve the issue. worked hard on this project.

    • June 26, 2020
  • 
    Sourav Chowhan I can't give my wiki link in this project..

    • June 26, 2020
    • -
    • 1 likes this
  • 
    Fatima Ahmed OK, since several of you are having the same problem, there could be an issue with our site. You have to be logged in to paste the link. But if you are tried that after logging in and still does not work, then please ignore this step. As long as you...  moreOK, since several of you are having the same problem, there could be an issue with our site. You have to be logged in to paste the link. But if you are tried that after logging in and still does not work, then please ignore this step. As long as you wrote the wiki in our wiki page, you are fine. Sorry for the inconvenience.  

    • June 26, 2020
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    • 4 like this
• 
  Sourav Chowhan is now friends with Fatima Ahmed.

  • June 17, 2020
• 
  Sourav Chowhan has added a new profile photo.

  

  • June 17, 2020

  • Md Waheduzzaman Tuhin and Shahin Alom like this.
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  Sourav Chowhan has just signed up. Say hello!

  • June 17, 2020