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  Md Mahedi Hasan 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 23, 2021

  • Sourav Chowhan likes this.
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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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  Md Mahedi Hasan commented on Fatima Ahmed's classified listing.

  

  Rafiq's Network Effect

  Rafiq's Network Effect
   
  
  Rafiq is a student of a reputed public university in Bangladesh. He is the only educated member of his family. He lived with his family in the village until he was admitted to the university.
  As the family's financial si...

  • May 19, 2021

  • Nazmus Sakib likes this.
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    Anika Dristi Since there is a network issue in his village SIM Internet connections like modem, the pocket router, etc. do not work very well here. The best solution for him is a broadband connection.
    As Rafiq got no money, he can lend some money from his students....  moreSince there is a network issue in his village SIM Internet connections like modem, the pocket router, etc. do not work very well here. The best solution for him is a broadband connection.
    As Rafiq got no money, he can lend some money from his students. He can use that money to buy a broadband connection. Thus he can continue his classes and his tuitions as well.
    
    He can also gather more people like him who are facing the same problem and together they can buy a broadband connection and router. Which will result in solving everyone's problem.
    
    He can also get a student loan from his Univesity.  less

    • May 20, 2021
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    Khadeeza Afruz Shammee To start the tuition, Rafiq needs to solve his problem immediately with an affordable cost. In villages, the power supply is often cut off. Rather, setup for Ethernet or wireless WIFI connection is expensive, except for SIM. So, here is my idea:
    -A...  moreTo start the tuition, Rafiq needs to solve his problem immediately with an affordable cost. In villages, the power supply is often cut off. Rather, setup for Ethernet or wireless WIFI connection is expensive, except for SIM. So, here is my idea:
    -A Pocket Router and a good quality USB extension cable can solve his problem. To get network inside his home, he can place the router on the bamboo-head or as high as possible, using a USB extension cable of 10 meters or as required. The router must be covered with waterproof something like polythene.
    -GP Pocket Router supports all SIMs. The SIM which provides best network in his village, he can purchase that SIM's data package from the retailer at least at one-third lower price.
    -For the first month, the full cost including the data package, can be up to a maximum of 3500 takas. If Rafiq does not have this amount, he can request to get the tuition fees in advance as the student is known to him. Otherwise, he can borrow the money for a month from somewhere reliable.  less

    • May 20, 2021
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    Shahriar Dipto It can be done in two ways.
    1.Getting broadband connection, & connecting it to a router that will cost 2-3 thousand tk for setup and 5-800 tk monthly.
    2. If it's not possible then, second option is buying a router (which can be connected to a modem), a...  moreIt can be done in two ways.
    1.Getting broadband connection, & connecting it to a router that will cost 2-3 thousand tk for setup and 5-800 tk monthly.
    2. If it's not possible then, second option is buying a router (which can be connected to a modem), a modem and a sim. Thus he can connect the sim to the router through modem. This will cost 2-4000 for set up and 500-1000৳ monthly. This need to be placed in a tall tree or on top of a bamboo stick where the network is good. As connecting electricity at that high place will be tough, he can attach a battery based power system which will backup for minimum 3-4 hours.
    Obviously, he can share his connection to other people who need it and thus reducing the cost to bear by himself.  less

    • May 20, 2021
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    • 1 likes this
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    Nishat Tamanna I will suggest him to buy a sim network booster. Though this device is a bit expensive (10,000 TK), it has no additional cost for set up. It is free of all the hassle of set up. He will also be able to share the connection with a good number of...  moreI will suggest him to buy a sim network booster. Though this device is a bit expensive (10,000 TK), it has no additional cost for set up. It is free of all the hassle of set up. He will also be able to share the connection with a good number of neighbours. Also, each university is now offering it's students 'student loan' in this pandemic, so he can take a loan and go for it easily.  

    • May 20, 2021
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    • 1 likes this
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    Tanjina Akter The solution could be a POCKET ROUTER. He can place the router on the top of the roof or on the bamboo head. Since the pocket router can move easily and all types of SIMs are supported, he can use it anywhere.
    
    Rafiq is a University student who earns...  moreThe solution could be a POCKET ROUTER. He can place the router on the top of the roof or on the bamboo head. Since the pocket router can move easily and all types of SIMs are supported, he can use it anywhere.
    
    Rafiq is a University student who earns for himself. Because of Covid's situation, he has to move to his native village. The issues start from here. All income source has stopped.
    
    The situation is, Rafiq does not have a proper internet connection and as a result, he is not able to continue his tuition along with his own classes. Because of his poor financial condition, he must need tuition. An adequate network at the home is the major issue in this case. As he is in the village, the electricity cut-off possibility is high. So, we cannot suggest him for broadband or wifi connection. So, the solution could be a POCKET ROUTER.  less

    • May 20, 2021
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  Md Mahedi Hasan commented on Fatima Ahmed's classified listing.

  

  Virginia Woolf: A Room of One's Own

  Virginia Woolf: A Room of One's Own
   
  
   
  Virginia Woolf was a British writer who is regarded as one of most famous modernist and feminist writer of the 20th century. She wrote several famous novels, essays and other literary works and i...

  • May 6, 2021

  • Fahmida Begum likes this.
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    Samia Ahmed The first thing I can do is focus on making aware of education, most importantly female education. I will inform the villagers first.I will give them the idea of mental health. How education is related to mental and physical strength. In this era, mental...  moreThe first thing I can do is focus on making aware of education, most importantly female education. I will inform the villagers first.I will give them the idea of mental health. How education is related to mental and physical strength. In this era, mental health is seen with negligence but that should be prioritized first.Then i tell them about suicide. The suicide rate is increasing every day which is related to mental health. How an educated girl changes their area and nation as well. Girls who have talents should work and make a career for mental stability, and earn money for their families. Even they could be the pride of that particular area. I will inform them about early marriage and its effects, how mothers died of premature pregnancy. I can arrange effective seminars virtually. If the area can understand her family will eventually influence. Finally, Since the girl is good at dancing, singing, and writing. I will suggest to her about technology so that she can start working from home, show her...    less

    • May 8, 2021
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    Samia Ahmed The first thing I can do is focus on making aware of education, most importantly female education. I will inform the villagers first.I will give them the idea of mental health. How education is related to mental and physical strength. In this era, mental...  moreThe first thing I can do is focus on making aware of education, most importantly female education. I will inform the villagers first.I will give them the idea of mental health. How education is related to mental and physical strength. In this era, mental health is seen with negligence but that should be prioritized first.Then i tell them about suicide. The suicide rate is increasing every day which is related to mental health. How an educated girl changes their area and nation as well. Girls who have talents should work and make a career for mental stability, and earn money for their families. Even they could be the pride of that particular area. I will inform them about early marriage and its effects, how mothers died of premature pregnancy. I can arrange effective seminars virtually. If the area can understand her family will eventually influence. Finally, Since the girl is good at dancing, singing, and writing. I will suggest to her about technology so that she can start working from home, show her...    less

    • May 8, 2021
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    Shafaat Shams Staying under a broken roof is dangerous, but trying to fix a broken roof from the bottom of it is far more dangerous. The girl is under a broken roof, if we approach her family about her talent, her opportunities could be closed forever. I’ll make...  moreStaying under a broken roof is dangerous, but trying to fix a broken roof from the bottom of it is far more dangerous. The girl is under a broken roof, if we approach her family about her talent, her opportunities could be closed forever. I’ll make her a way of getting out from the broken house & getting a platform where her talent will be appreciated. University is that platform; it’ll give her proper appreciation & opportunities for raising her talent.
    I’ll approach her instead of her family & introduce her to university & its opportunities. She has to convince her family with her educational performance. No family can marry off her daughter who has a chance to get a great job. Our society emphasizes job than talent. I'll let them do so. A girl with the wonderful educational result can easily persuade his family & society to take part in the university admission test. If she can get herself admitted, the university will do the rest of making her a playwright. Technology can play a big role....    less

    • May 8, 2021
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    Nur-E-Tamima Tuba If i have to convince her family, would love to listen them first and will show some points:
    1.Increases Economic Growth.
    2.Leads to Better Wages and Jobs for Women.
    3.Saves the Lives of Children and...  moreIf i have to convince her family, would love to listen them first and will show some points:
    1.Increases Economic Growth.
    2.Leads to Better Wages and Jobs for Women.
    3.Saves the Lives of Children and Mothers.
    I will inform her about the rights of being independent and making her own desire and choice.
    For preserve the those girls choice i am able to show them a few documentary about Bangladeshi playwrights notably 'Romena Afaz' who got inspiration for her literary career from her mother which led her to produce adventure thriller series "Doshyo Bonhur". i will also display them the tremendous sights of playwrights
    Rustic peoples are want to watches tv, once they noticed any classified ads to excellent sectors of female education, they will inspire themselves to now not to push their ladies for early marriage.I wil inform them a knowledgeable girl can stand for her sick father with the aid of her process, business or numerous profession. I'll notify them the empowered girl namd 'Malala...    less

    • May 8, 2021
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    Towhidur R. Females have been oppressed by society for centuries and it has become a social norm. To rescue young girls and girls with promising futures out of this curse the society needs to be educated and need to know the value of an educated woman. Firstly, the...  moreFemales have been oppressed by society for centuries and it has become a social norm. To rescue young girls and girls with promising futures out of this curse the society needs to be educated and need to know the value of an educated woman. Firstly, the parents and society need to acknowledge the talent and potential of the girl. If she is promising in activities like dancing or singing then she can build a career around that and help her village and people to improve their lifestyle. Secondly, it's essential to know the side effects of early marriage. The health and mental risk, abuse of the in-laws, and many more. Technology can play a vital role to educate society and giving training and guidelines to reach the girl's goal. Like showing what women around the world have done and link the girl with professionals for proper guidelines.
    This is how I will approach her, her family, and villagers to stop her marriage and give the opportunity to pursue her future.  less

    • May 8, 2021
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  Md Mahedi Hasan liked Nusrat Meem's photo.

  

  • January 1, 2021

  • Ayesha Siddqa and Md Mahedi Hasan like this.
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  Md Mahedi Hasan is now friends with Noshin Tasnia.

  • December 11, 2020
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  Md Mahedi Hasan is now friends with Fatima Ahmed.

  • December 11, 2020
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  Md Mahedi Hasan follow Noshin Tasnia.

  • December 11, 2020
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  Md Mahedi Hasan liked Bj Zishan's photo.

  

  Winter is not a season, it's a celebration. (A)

  • December 11, 2020

  • 9 people like this
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  Fatima Ahmed: Mahedi's wiki article on Beauty. Well written in the first try. Nice artwork!

  

  Beauty is nothing but a perception of life - Coolinventor Wiki

  Beauty is nothing but a perception of life - Coolinventor Wiki

  • December 4, 2020

  • Md Mahedi Hasan likes this.
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    Noshin Tasnia Your bkash Number please

    • December 10, 2020
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    • 1 likes this
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    Md Mahedi Hasan 01821994410

    • December 11, 2020
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  Md Mahedi Hasan liked Fatima Ahmed's album.

  

  Our Contributors and their Life!

  This is the album where our contributor can share their pictures so our community know more about them and their background. Just a profile picture is not enough to know more about our contributors. So feel free to share any of your interesting pictures...  moreThis is the album where our contributor can share their pictures so our community know more about them and their background. Just a profile picture is not enough to know more about our contributors. So feel free to share any of your interesting pictures here that might benefit our members in Coolinventor!  

  • October 19, 2020

  • 7 people like this
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    Bj Zishan pleasure (●'◡'●)(●'◡'●)

    • October 16, 2020
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    Shahbaj Nihan Thanks apu❤️❤️

    • October 16, 2020
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  Md Mahedi Hasan joined the group Coolinventor Contributors

  • September 25, 2020
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  Md Mahedi Hasan follow Fatima Ahmed.

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  Md Mahedi Hasan has just signed up. Say hello!

  • September 25, 2020