What's New

  • Imran Sarkar
    Imran Sarkar is now friends with Sourav Chowhan.
    • July 1, 2022
  • Sourav Chowhan
    Sourav Chowhan commented on Fatima Ahmed's blog entry.
    The  Future - $10 English writing project
    • April 12, 2022
  • Sourav Chowhan
    Sourav Chowhan liked Fatima Ahmed's blog entry.
    The  Future - $10 English writing project
    • April 12, 2022
  • Sourav Chowhan
    Sourav Chowhan commented on Fatima Ahmed's photo.
    • April 11, 2022
  • Sourav Chowhan
    Sourav Chowhan liked Fatima Ahmed's photo.
    • April 11, 2022
  • Fatima Ahmed
    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...  more
    • April 8, 2022
  • Sourav Chowhan
    Sourav Chowhan liked Fatima Ahmed's classified listing.
    Adam's Brunoise Dice - $5 Physics Quiz
    • June 27, 2021
    • Sourav Chowhan likes this.
    • Sourav Chowhan
      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...  more
      • June 25, 2021
    • Sourav Chowhan
      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...  more
      • June 26, 2021
    • Sourav Chowhan
      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....  more
      • June 26, 2021
    • Sourav Chowhan
      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...  more
      • June 27, 2021
    • Sourav Chowhan
      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...  more
      • June 27, 2021
  • Sourav Chowhan
    Sourav Chowhan commented on Fatima Ahmed's classified listing.
    Adam's Brunoise Dice - $5 Physics Quiz
    • June 21, 2021
    • Sourav Chowhan likes this.
    • Sourav Chowhan
      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...  more
      • June 25, 2021
    • Sourav Chowhan
      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...  more
      • June 26, 2021
    • Sourav Chowhan
      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....  more
      • June 26, 2021
    • Sourav Chowhan
      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...  more
      • June 27, 2021
    • Sourav Chowhan
      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...  more
      • June 27, 2021
  • Sourav Chowhan
    Sourav Chowhan commented on Fatima Ahmed's classified listing.
    Jacob's Alaskan Trip
    • June 9, 2021
    • Sourav Chowhan
      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...  more
      • June 13, 2021
    • Sourav Chowhan
      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.
    • Sourav Chowhan
      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....  more
    • Sourav Chowhan
      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...  more
    • Sourav Chowhan
      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,...  more
      • June 14, 2021
  • Fatima Ahmed
    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....  more
    Coexistence of us - Coolinventor Wiki
    • October 8, 2020
  • Fatima Ahmed
    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...  more
    Reserve the local talents is possible or not ??? - Coolinventor
    • August 29, 2020
  • Fatima Ahmed
    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...  more
    Way to Save our planet from Air pollution with the latest techno
    • July 28, 2020
  • Sourav Chowhan
    Sourav Chowhan commented on Fatima Ahmed's photo.
    • July 8, 2020
    • Sourav Chowhan
      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...  more
    • Sourav Chowhan
      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...  more
      • July 11, 2020
    • Sourav Chowhan
      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...  more
      • July 11, 2020
    • Sourav Chowhan
      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...  more
      • July 12, 2020
    • Sourav Chowhan
      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...  more
      • July 29, 2020
  • Farjana Wahid
    Farjana Wahid is now friends with Sourav Chowhan.
    • July 8, 2020
  • Abdullah Hel  Safi
    Abdullah Hel Safi is now friends with Sourav Chowhan.
    • July 6, 2020
  • Sourav Chowhan
    Sourav Chowhan is now friends with Shahin Alom.
    • July 3, 2020
  • Noshin Tasnia
    Noshin Tasnia is now friends with Sourav Chowhan.
    • July 2, 2020
  • Fatima Ahmed
    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...  more
    How to get rid of poverty from Africa - Coolinventor Wiki
    • June 30, 2020
  • Sourav Chowhan
    Sourav Chowhan commented on Fatima Ahmed's blog entry.
    The Africa Project
    • June 26, 2020
    • Sourav Chowhan
      Md. Mushfiq Rahman I cannot link my wiki here. The form is not clickable. What do i do?
    • Sourav Chowhan
      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
      Sourav Chowhan I can't give my wiki link in this project..
    • Sourav Chowhan
      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...  more
  • Sourav Chowhan
    Sourav Chowhan commented on Fatima Ahmed's photo.
    • June 24, 2020
    • Shorna Chowdhury likes this.
    • Sourav Chowhan
      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...  more
      • June 23, 2020
    • Sourav Chowhan
      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...  more
      • June 23, 2020
    • Sourav Chowhan
      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...  more
      • June 23, 2020
    • Sourav Chowhan
      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...  more
      • June 24, 2020
    • Sourav Chowhan
      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...  more
      • June 24, 2020
  • Sourav Chowhan
    Sourav Chowhan joined the group Coolinventor Contributors
    • June 20, 2020
  • Sourav Chowhan
    Sourav Chowhan liked Fatima Ahmed's blog entry.
    The Africa Project
    • June 19, 2020
    • Sourav Chowhan
      Md. Mushfiq Rahman I cannot link my wiki here. The form is not clickable. What do i do?
    • Sourav Chowhan
      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
      Sourav Chowhan I can't give my wiki link in this project..
    • Sourav Chowhan
      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...  more
  • Sourav Chowhan
    Sourav Chowhan is now friends with Fatima Ahmed.
    • June 17, 2020
  • Sourav Chowhan
    Sourav Chowhan has added a new profile photo.
    • June 17, 2020
  • Sourav Chowhan
    Sourav Chowhan has just signed up. Say hello!