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  • Khadeeza Afruz  Shammee
    Khadeeza Afruz Shammee commented on Fatima Ahmed's classified listing.
    Adam's Brunoise Dice - $5 Physics Quiz
    • June 25, 2021
    • Sourav Chowhan likes this.
    • Khadeeza Afruz  Shammee
      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...  more
      • June 21, 2021
    • Khadeeza Afruz  Shammee
      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...  more
    • Khadeeza Afruz  Shammee
      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...  more
      • June 21, 2021
    • Khadeeza Afruz  Shammee
      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...  more
      • June 21, 2021
    • Khadeeza Afruz  Shammee
      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...  more
      • June 21, 2021
    • Khadeeza Afruz  Shammee
      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
      • June 21, 2021
    • Khadeeza Afruz  Shammee
      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...  more
      • June 21, 2021
    • Khadeeza Afruz  Shammee
      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...  more
      • June 21, 2021
    • Khadeeza Afruz  Shammee
      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...  more
      • June 21, 2021
    • Khadeeza Afruz  Shammee
      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...  more
      • June 21, 2021
    • Khadeeza Afruz  Shammee
      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
    • Khadeeza Afruz  Shammee
      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...  more
      • June 21, 2021
    • Khadeeza Afruz  Shammee
      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...  more
      • June 21, 2021
    • Khadeeza Afruz  Shammee
      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...  more
      • June 22, 2021
    • Khadeeza Afruz  Shammee
      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...  more
    • Khadeeza Afruz  Shammee
      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...  more
      • June 23, 2021
    • Khadeeza Afruz  Shammee
      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,...  more
      • June 23, 2021
    • Khadeeza Afruz  Shammee
      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
    • Khadeeza Afruz  Shammee
      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
    • Khadeeza Afruz  Shammee
      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
    • Khadeeza Afruz  Shammee
      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
    • Khadeeza Afruz  Shammee
      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
  • Khadeeza Afruz  Shammee
    Khadeeza Afruz Shammee joined the group Coolinventor Contributors
    • May 20, 2021
  • Khadeeza Afruz  Shammee
    Khadeeza Afruz Shammee commented on Fatima Ahmed's classified listing.
    Rafiq's Network Effect
    • May 20, 2021
    • Nazmus Sakib likes this.
    • Khadeeza Afruz  Shammee
      Nazmul Huda Jesan Well Rafiq Needs Better internet connection anywhere in an affordable way.first of all mamy operators are providing internet im bangladesh.so he have to search which one is best for him considering his location.if none of them are applicable than he can...  more
    • Khadeeza Afruz  Shammee
      Mujtaba Rafid It's a crucial topic and Rafiq is not the only one who is suffering.
      So what can he do? In fact, what can guys like Rafiq do??
      Well, there are two things to keep in mind-
      A. Short-Term Immediate...  more
    • Khadeeza Afruz  Shammee
      Noorjahan Binte Farhana I was also facing
      the same problem. I was in my village in 22 days. There was no proper
      network. So i was thinking about this...  more
      • May 18, 2021
    • Khadeeza Afruz  Shammee
      Taarik Hasan If we see Rafiq’s globalization and ability, he got an urban
      network community to share his ideas and problems. This will solve half of his...  more
      • May 18, 2021
    • Khadeeza Afruz  Shammee
      Taarik Hasan (...)


      With this attention, the nation might help solve...  more
      • May 18, 2021
    • Khadeeza Afruz  Shammee
      Mehjabin Zaman Mahee The best possible solution for Rafiq is,
      1. He can apply for financial assistance/student loan from his university. Then try using 3G sim and modem of any mobile operators (GP,Airtel,Teletalk).It would be better if
      he considers the coverage and network...  more
      • May 19, 2021
    • Khadeeza Afruz  Shammee
      Md Mahedi Hasan Rafiq is a University student, He can easily use her creative skills to get access to the internet. In the village, there is lots of obstacle to the mobile networks, such as trees, multitude house and so on. But in terms of a certain height, he will you...  more
      • May 19, 2021
    • Khadeeza Afruz  Shammee
      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....  more
    • Khadeeza Afruz  Shammee
      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...  more
      • May 20, 2021
    • Khadeeza Afruz  Shammee
      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...  more
    • Khadeeza Afruz  Shammee
      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...  more
    • Khadeeza Afruz  Shammee
      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...  more
      • May 20, 2021
  • Noshin Tasnia
    Noshin Tasnia is now friends with Khadeeza Afruz Shammee.
    • May 17, 2021
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    Mostafizur Rahman is now friends with Khadeeza Afruz Shammee.
    • May 16, 2021
  • Khadeeza Afruz  Shammee
    Khadeeza Afruz Shammee commented on Fatima Ahmed's photo.
    • May 16, 2021
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    Khadeeza Afruz Shammee liked Fatima Ahmed's photo.
    • May 16, 2021
  • Khadeeza Afruz  Shammee
    Khadeeza Afruz Shammee is now friends with Fatima Ahmed.
    • May 16, 2021
  • Khadeeza Afruz  Shammee
    Khadeeza Afruz Shammee is now friends with Taarik Hasan.
    • May 16, 2021
  • Khadeeza Afruz  Shammee
    Khadeeza Afruz Shammee commented on Fatima Ahmed's classified listing.
    Mr. Ethan's Dilemma
    • May 13, 2021
    • Khadeeza Afruz  Shammee
      Tanveer Tausif Ratul My steps are given below-
      Firstly,i will send the young (20-45 years old) back to work instead of the adults, because they face the lowest fatality rate and the lowest need of needing healthcare for COVID-19.But of course,no young boy will be sent for...  more
      • May 11, 2021
    • Khadeeza Afruz  Shammee
      Tanveer Tausif Ratul Secondly,if there is a person in the family of a young man who has a lung infection/other lung diseases,the young of that family who will go to work must be seperated from
      them.As every schools and colleges are off now,those buildings are still...  more
      • May 11, 2021
    • Khadeeza Afruz  Shammee
      Yeasin Arafath As an educated person Mr.Ethan can take some steps to stop spreading covid & to develop
      their village economy. He can use his political purpose in this situation also.

      In my point of view some ideas are pointed...  more
      • May 11, 2021
    • Khadeeza Afruz  Shammee
      Taarik Hasan As a Mr. Ethan and a professor and a political leader, I
      will use my knowledge from both fields....  more
      • May 12, 2021
    • Khadeeza Afruz  Shammee
      Towhidur R. To combat against covid-19 nothing beats social distancing, closing the borders, and nationwide lockdown. But to reduce the economic backlash certain steps can be taken.
      Distribution of workforce could ensure less gathering and reduction of service....  more
      • May 12, 2021
    • Khadeeza Afruz  Shammee
      Khadeeza Afruz Shammee Although the duration and severity of Covid-19 are terrible, it is quite impossible for a country like Bangladesh, to have a long lockdown to sustain the economy. As a policymaker, I will take the following steps :
      - I will instruct the industries to...  more
      • May 13, 2021
    • Khadeeza Afruz  Shammee
      Fatima Ahmed Thank you for all your answers everybody. We will announce the winner of this quiz tomorrow.
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    • May 8, 2021
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    • May 8, 2021
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