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  Khadeeza Afruz Shammee 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 25, 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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  Khadeeza Afruz Shammee joined the group Coolinventor Contributors

  • May 20, 2021
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  Khadeeza Afruz Shammee 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 20, 2021

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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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    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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    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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  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
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  Khadeeza Afruz Shammee commented on Fatima Ahmed's photo.

  

  Hello all, Taarik Hasan and Khadeeza Afruz Shammee are the winner and runner-up of our latest quiz on Ethan's Dilemma. The main question of the quiz was how to stop the spread of the COVID virus without impacting the economy. We got several answers, but...  moreHello all, Taarik Hasan and Khadeeza Afruz Shammee are the winner and runner-up of our latest quiz on Ethan's Dilemma. The main question of the quiz was how to stop the spread of the COVID virus without impacting the economy. We got several answers, but the winners answers were chosen because they were practical as well as creative. Please click on this link to see everyone's answers and highlights: https://drive.google.com/file/d/1EV5fRX8x45_rRcuUjVqIUreHGkI7pF-C/view?usp=sharing  less

  • May 16, 2021

  • Khadeeza Afruz Shammee and Mehjabin Zaman Mahee like this.
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    Khadeeza Afruz Shammee Thank you so much .

    • May 16, 2021
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  Khadeeza Afruz Shammee liked Fatima Ahmed's photo.

  

  Hello all, Taarik Hasan and Khadeeza Afruz Shammee are the winner and runner-up of our latest quiz on Ethan's Dilemma. The main question of the quiz was how to stop the spread of the COVID virus without impacting the economy. We got several answers, but...  moreHello all, Taarik Hasan and Khadeeza Afruz Shammee are the winner and runner-up of our latest quiz on Ethan's Dilemma. The main question of the quiz was how to stop the spread of the COVID virus without impacting the economy. We got several answers, but the winners answers were chosen because they were practical as well as creative. Please click on this link to see everyone's answers and highlights: https://drive.google.com/file/d/1EV5fRX8x45_rRcuUjVqIUreHGkI7pF-C/view?usp=sharing  less

  • May 16, 2021

  • Khadeeza Afruz Shammee and Mehjabin Zaman Mahee like this.
  • 
    Khadeeza Afruz Shammee Thank you so much .

    • May 16, 2021
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  Khadeeza Afruz Shammee is now friends with Fatima Ahmed.

  • May 16, 2021
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  Khadeeza Afruz Shammee is now friends with Taarik Hasan.

  • May 16, 2021
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  Khadeeza Afruz Shammee commented on Fatima Ahmed's classified listing.

  

  Mr. Ethan's Dilemma

  Mr. Ethan's Dilemma
   
  
  Mr. Ethan was a senior political leader in a village near the Dhaka District. He also used to be a professor of Dhaka University before his political career. He was highly respected in his village community as he did an...

  • May 13, 2021

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    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...  moreAs 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 below:
    
    1.During lockdown he may arrange online learning & earning programs with younger
    & educated village people.It may help their economic condition.
    
    2.He can make a team or organization with young people those who give free service during pandemic such as
    village women can work in home(hand crafts,sewing etc.) and they can help to delivering these things.
    
    3.From political background he may manage some reliefs from govt. and distribute those with his organization’s young people.
    
    4.He can make schedules for village farmers when they go to their land to cultivate & collect their vagetables and others seeds by maintaining social distance.
    
    5.He and with the help of young people they can arrange market with maintaining social
    distance in the open ground area so that village people can buy...    less

    • May 11, 2021
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    Taarik Hasan As a Mr. Ethan and a professor and a political leader, I
    will use my knowledge from both fields....  moreAs a Mr. Ethan and a professor and a political leader, I
    will use my knowledge from both fields.
    
    
    I will separate the jobs or general people's economic contributions
    into three categories: highest, the less, and the least. The main objective is
    to keep the economy after reducing the interaction of people.
    
    
    I will set the time frame for various categories. Before the
    office hours on the very morning, the markets will be available for estern
    housing (in the evening, the western people will come).
    
    
    With the office hours, the banks and other related services
    will be there. In the evening time, the least contributors will come across
    like shopping complexes and restaurants.
    
    
    At night the manufacturers and agriculture, food services, garments,
    suppliers will work.
    
    
    
    
    
    The statistics on the economic contribution I will follow to
    set them at morning, day, or night shifts, related with one another.
    
    
    
    
    
    People must not leave houses for roaming will be ensured by
    political campaigns and creating...    less

    • May 12, 2021
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    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....  moreTo 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. Businesses will divide the workers into shifts and follow strict guidelines. They will also have to reduce the services they provide and stay open for extra hours. Garments, constructions need to divide their workforce into shifts so it doesn't hinder their work.
    Long journeys should be restricted as it increased the chances of spreading the virus. Borders need to stay closed at all costs because new strains are being discovered on a regular basis around the globe and the effects of the mutated virus could be devastating.
    Law force should be deployed to monitor unnecessary gatherings and ensure people maintaining the guidelines in public.
    The government needs to organize relief funds to ensure infected individuals don't have to go hungry or forced to go...    less

    • May 12, 2021
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    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...  moreAlthough 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 work by dividing the working time into double shifts. In this way, even if the cost of running the industry is a bit higher, the density in the workplace can be avoided.
    -Since the marketplaces must be kept open, a family member from each family will be provided a movement pass for shopping at most one day of the week to avoid extra crowds.
    -Adequate number of transports would be kept running on the occasion of the upcoming festival so that the passengers can maintain minimum social distance.
    -Strict surveillance will be put in place to ensure that people are maintaining proper social distance and hygiene and not leaving their house unnecessarily. Public awareness activities should be carried out to motivate the people to abide by the necessary health norms.  less

    • May 13, 2021
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    Fatima Ahmed Thank you for all your answers everybody. We will announce the winner of this quiz tomorrow.

    • May 14, 2021
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  Khadeeza Afruz Shammee has added a new profile photo.

  

  • May 8, 2021
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  Khadeeza Afruz Shammee follow Fatima Ahmed.

  • May 8, 2021
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  Khadeeza Afruz Shammee has just signed up. Say hello!

  • May 8, 2021