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  Shaikh Nafisa Binte Fahad joined the group Coolinventor Contributors

  • March 17, 2022
• 
  Shaikh Nafisa Binte Fahad commented on Fatima Ahmed's classified listing.

  

  Games R' Us Giraffes - $7 Mathematics Quiz

  Games R' Us Giraffes - $7 Mathematics Quiz
   
  
  David’s project deadline was approaching soon. That day, he was still sitting at his desk after office hours and was still thinking the best way to finish his project on time. He was exited after...

  • July 31, 2021

  • Zarin sadaf snigdha likes this.
  • 
    Zarin sadaf snigdha Since both the Giraffes are similar & we know the volume & heigh of larger Giraffe & the height of the smaller Giraffe we can use Similarity to find the volume of smaller Giraffe.
    (Volume of smaller/ volume of larger) = (height of smaller/...  moreSince both the Giraffes are similar & we know the volume & heigh of larger Giraffe & the height of the smaller Giraffe we can use Similarity to find the volume of smaller Giraffe.
    (Volume of smaller/ volume of larger) = (height of smaller/ height of larger)^3
    (X/5400) = (4/6)^3
    X= 1600m3
    So the volume of smaller Giraffe is 1600 m3
    This method will give us a very accurate volume of the smaller Giraffe as the Giraffes are similar means that the smaller one is a scaled down version of the larger one so dimensions are proportional to the volume. We cubed the length so that we can take it to meter cube & get the volume.  less

    • July 30, 2021
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    Shadman Chowdhury The volume of the smaller giraffe will be found by different methods. If the first approach doesn't work, try another method.
    
    The formula for calculating volume is: V=L*W*H where L is length, W is width and H is height. As you can see in the diagram...  moreThe volume of the smaller giraffe will be found by different methods. If the first approach doesn't work, try another method.
    
    The formula for calculating volume is: V=L*W*H where L is length, W is width and H is height. As you can see in the diagram above, the L of the smaller giraffe is 6m and its width and height are both 1m each. Thus the total surface area (6x1) + (1x1)=7 sq m.
    
    Since we know that the larger giraffe has a volume of 5400 m³, we need to find how many times more or less than this number 7sq m represents when compared to the larger giraffe with a volume of 5400 m³.
    
    Continue to the second comment...  less

    • July 31, 2021
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    Shadman Chowdhury The first method is to calculate the ratio of the surface area of a smaller giraffe compared to that of the larger one and then multiply this number with the volume of a larger giraffe. This will give us an approximate answer for the volume of the...  moreThe first method is to calculate the ratio of the surface area of a smaller giraffe compared to that of the larger one and then multiply this number with the volume of a larger giraffe. This will give us an approximate answer for the volume of the smaller giraffes.
    
    Using generic maths formula, we can write: Given: L=6, W = 1 & H=1 --> So, S=(6x1)+(1x1)=7 sq m --> VL=5400 (given) --> RATIO=(Total Surface Area)/ Volume --> S/VL = 7/(5400) or 0.0118696... (approx.)
    
    Thus, we have a ratio of 0.0118696... (approx.) between the surface area of the smaller giraffe and a larger one. Now we need to multiply this number with the volume of the larger giraffe in order to find out how many times the smaller giraffe's volume is compared to that of the larger giraffe.
    
    This gives us a more accurate answer for the volume of smaller giraffes! Vsmaller Giraffes =0.0345691...(approx.) or 836 m³  less

    • July 31, 2021
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    Zakaria Ahomed First of all the main thing comes here is about similarity. But a difference in case of height and dimensions. So in this case we can do following things.
    Suppose,the volume of smaller one = x
    Ratio of their Heights => 4/6= 2/3
    Again,if we cube...  moreFirst of all the main thing comes here is about similarity. But a difference in case of height and dimensions. So in this case we can do following things.
    Suppose,the volume of smaller one = x
    Ratio of their Heights => 4/6= 2/3
    Again,if we cube this the result will be(2/3)^3= 8/27.
    This is similar as the volume so we can write a equation with it. Now, the equation stands → 8/27=x/5400
    x=1600m3
    Smaller giraffe's volume is 1600m3
    Now, 'How my formula will work?' that's the question. The very first thing mentioned here is they are similar. That means ratio of length, width and height will be same. We were given with two heights. From that we have calculated the ratio. And the least form came 2/3 that means it can't be divided any further. So,it is the common ratio among the length,width and height.
    But this ratio isn't equal to ratio of volume.For making this equal to volume. We need to cube it. Why? That's because If two solids are similar, the ratio of their volumes is equal to the cube of...    less

    • July 31, 2021
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    • 1 likes this
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    Zakaria Ahomed That's because If two solids are similar, the ratio of their volumes is equal to the cube of the ratio of their corresponding sides.The cube came 8/27. And the rest of the things are as given. The equation will be (common ratio)^3=ratio of volumes. Thus...  moreThat's because If two solids are similar, the ratio of their volumes is equal to the cube of the ratio of their corresponding sides.The cube came 8/27. And the rest of the things are as given. The equation will be (common ratio)^3=ratio of volumes. Thus it will work.
    Now, the question remains, 'why it will work?' It will work because,I have done the correct things. Now, imagine one thing. I could show ratio of sides equal to the ratio of volumes. In that case that won't be correct and the answer would be 3600m3. Because,a one dimensional unit can't be equal to a three dimensional unit.  less

    • July 31, 2021
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    • 1 likes this
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    Tanveer Tausif Ratul Height of bigger giraffe, Hbig=6m
    Height of smaller giraffe, Hsmall=4m
    Volume of bigger giraffe, Vbig=5400m3
    Volume of smaller giraffe, Vsmall=X...  moreHeight of bigger giraffe, Hbig=6m
    Height of smaller giraffe, Hsmall=4m
    Volume of bigger giraffe, Vbig=5400m3
    Volume of smaller giraffe, Vsmall=X (let)
    
    
    If we use similarity formula,then,
    Hbig/Hsmall=Vbig/Vsmall
    
    
    But in an equation,the dimensions of the both sides must beequal.In this equation,height is a one-dimensional unit (m),but volume is a three-dimensional unit (m^3).In order to satisfy the condition of an equation,we have
    to take the cube of both "Hbig" & "Hsmall".Then the
    values will be 216 & 64 accordingly.Now the dimension has become equal & the equation is absolutely correct.
    
    
    So,putting these values,the equation will be- 216/64=5400/X
    
    
    From the equation,value of X is 1600
    So, the volume of smaller giraffe is, Vsmall=1600m3  less

    • July 31, 2021
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    Kanta Akter We can just simply do this calculation as the Giraffes are similar. the bigger one is 4/6 times the smaller one in all three dimensions that result in a smaller one 5400×4/6×4/6×4/6 or 5400×(4³/6³)=1600m³
    
    Then why this will...  moreWe can just simply do this calculation as the Giraffes are similar. the bigger one is 4/6 times the smaller one in all three dimensions that result in a smaller one 5400×4/6×4/6×4/6 or 5400×(4³/6³)=1600m³
    
    Then why this will work?
    
    If two giraffes are similar then their corresponding linear measures (widths, heights, base lengths, etc.) are proportional too. And we also know volume is expressed in the cubic unit because it is the sum of three measurements (length, width, and depth) that are multiplied together. Cubic units are cm3, m3 , and cubic feet.
    
    Now, the main point is which toy size he should keep for manufacturing more toys?
    
    I think he should manufacture smaller giraffes since small things are sturdier in proportion to their size. Moreover, the small Giraffe will be able to hold up fine. But, the larger giraffe built with the same proportions as the small one will collapse under its weight. This large giraffe also needs to have timbers that are thicker compared to its size. That's...    less

    • July 31, 2021
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    Kanta Akter That's why a small giraffe will be the best choice for manufacturing.

    • July 31, 2021
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    Nirjona Akter In the passage, it is stated that giraffes are similar with different sizes. We can calculate the volume of a smaller giraffe by using given values along with simple math calculation. So If the height of 6 makes a 5400 m³, then the first part of the...  moreIn the passage, it is stated that giraffes are similar with different sizes. We can calculate the volume of a smaller giraffe by using given values along with simple math calculation. So If the height of 6 makes a 5400 m³, then the first part of the proportion is 6/5400 m³ The second part of the proportion has a numerator of 4 because of the height of 6 changes into a height of 4. The proportion should be set up as 6/5400m³=4/x because the bottom number is the volume, and the top is the height, and we want to find the volume of the similar smaller giraffe.
    
    To solve the proportion, let's suppose smaller giraffe volume is x, so if we cross multiply the numerator and denominator, so it would be in this way,
    
    6x=5400m³*4
    
    or,x/5400 m³=4/6
    
    or,x/5400m= (4/6)³
    
    or,x=(5400×64)/216
    
    x=1600  less

    • July 31, 2021
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    Nirjona Akter Why this formula will work?
    
    This method will work when all the sides are of the same length. Then, we can find the volume of a cube just knowing the measurement of only one side. If a cube has side length "x" then Volume = x × x × x a which results in...  moreWhy this formula will work?
    
    This method will work when all the sides are of the same length. Then, we can find the volume of a cube just knowing the measurement of only one side. If a cube has side length "x" then Volume = x × x × x a which results in the formula, Volume = x³. This is where we get the term called"cubed". When we use power to the 3 over something, we call it cubed. When units of Measure are calculated, we find the volume of an object, and the units are cubed. This means that if the measurements of the sides are in miters, then the answer will be in cubed miters.  less

    • July 31, 2021
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    Shaikh Nafisa Binte Fahad ''How will it work?''
    In question, it represents the subject of ‘similarity statistics’. This means that the ratio of height, length, and width will be the same.
    In the equation, we are seeing that the dimension of both the values are different which...  more''How will it work?''
    In question, it represents the subject of ‘similarity statistics’. This means that the ratio of height, length, and width will be the same.
    In the equation, we are seeing that the dimension of both the values are different which needs to be equal. Over here, the height is a one-dimensional unit(meter) but the volume is three-dimensional (meter^3). So, we need to cube it to make it evenly dimensional.
    ''Why would it work?''
    Otherwise, it is not according to the rules and the answer will be wrong.
    So, given,
    Height of small giraff= 4m
    = 4 x 4 x4 = 216m^3
    Height of big giraff= 6m
    = 6x 6 x6 = 64 m^3
    Volume of big giraff= 5400m^3
    and, let the volume of small giraffe be 'x' m^3.
    Now. we know,
    the formula of similarity,
    Height of big giraffe/Height of small giraffe=Volume of big giraffe/Volume of small giraff.
    ==> 216/64 = 5400/ 'x'
    ==>216x =345600
    ==> x =1600
    Therefore, the volume of the small giraff is 1600 m^3.  less

    • July 31, 2021
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    • 1 likes this
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    Noorjahan Binte Farhana There is given Small and tall giraffe height. And the tall giraffe volume is 5400 meter queb. volume= length × width × height.
    consume the length X and width Y for tall and small giraffe
    so, for tall giraffe...  moreThere is given Small and tall giraffe height. And the tall giraffe volume is 5400 meter queb. volume= length × width × height.
    consume the length X and width Y for tall and small giraffe
    so, for tall giraffe X*Y*6=5400
    XY=5400/6
    XY= 900
    Now, for small giraffe volume X*Y*4
    900*4=3600 [ we have find out XY=900]
    The tall giraffe is 1.5 tall more than small giraffe.
    as, 3600*1.5=5400  

    • August 1, 2021
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    Jesmin Akhter given,
    Bigger giraff height = 6m
    And the volume of bigger giraff = 5400m^3
    we know a formula...  moregiven,
    Bigger giraff height = 6m
    And the volume of bigger giraff = 5400m^3
    we know a formula that,
    volume = lenght * wide * hight
    let, lenght = a, wide = b
    so, volume = lenght * wide * hight
    => 5400m^3 = a * b * 6m
    => ab = 5400m^3 / 6m
    => ab = 900m^2 ...........(i)
    given, Smaller giraff hight = 4m
    know we have to be findout the volume of smaller giraff.
    let, volume of smaller giraff = x
    leangth = a
    wide = b
    we know,
    valume = length * wide * hight
    => x = ab * 4m
    => x = 900m^2 * 4m [ puting the value of a and b from equation...    less

    • August 1, 2021
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    Nur E ferdus Monika matin At first, it is mentioned that both giraffes are similar. That means the ratio of height, length,
    width, and the dimension of each part will be the same for the two Giraffe. The volume of a
    three dimensional figure is- volume= length X width X height so,...  moreAt first, it is mentioned that both giraffes are similar. That means the ratio of height, length,
    width, and the dimension of each part will be the same for the two Giraffe. The volume of a
    three dimensional figure is- volume= length X width X height so, Volume(Small)/Volume
    (Large)=Length(s)×width(s)×Height(s)/Length×width×Height
    Height(s)/Height=4/6=2/3 So, Length(s)/ Length=2/3 and width(s)/width=2/3
    Volume(Small)/Volume (Large)= (2/3) ×(2/3)×(2/3) Volume(Small)= (8/27)× Volume (Large)
    = (8/27) × 5400 m^3 = 1600 m^3 This formula will work because If we calculate volume part
    by part and make a sum to get the total volume of the small giraffe as it is irregular-shaped,
    it will remain unchanged because each part maintains the same ratio of 2/3 with the large
    Giraffe as both are similar.  less

    • August 1, 2021
• 
  Shaikh Nafisa Binte Fahad commented on Fatima Ahmed's classified listing.

  

  Anwar's Different Perspective - $5 English Writing project

  Anwar's Different Perspective - $5 English writing project
   
  
   Anwar just completed the last level of his Mario Cart video game. Unlike all other students in his class, Anwar was an introvert and did not look like the typical 9th grade studen...

  • July 16, 2021

  • 
    Noorjahan Binte Farhana I was in Class 5, our first term exam was started. I got 39 out of 100 in Mathematics. I was failed. My school called out of my parents.I cried a lot, i was so humiliated. How could anyone got failed mark. Everyone tried to mock of me. My stubbornness...  moreI was in Class 5, our first term exam was started. I got 39 out of 100 in Mathematics. I was failed. My school called out of my parents.I cried a lot, i was so humiliated. How could anyone got failed mark. Everyone tried to mock of me. My stubbornness was suppressed. i was preparing for
    my 2nd term examination. I practice a lot my mathematics subject. Everyday i practiced about 1-2 hours. My condition was such that I could spin the math from anywhere. I got 99 out of 100 in my 2nd term examination was so happy, my parents and my teacher felt so proud of
    me. My friends who did mock of me, they also appreciated me a lot.  less

    • July 12, 2021
  • 
    Taiba Anjum https://coolinventor.com/classifieds/2/28/anwar-s-different-perspective-5-english-writing-project

    • July 12, 2021
  • 
    Taiba Anjum It was a fortnight when I had a singing contest contrived by Bangladesh’s prominent organizers for standard people who are passionate about music.I convinced to take part in the contest because ever since I was a child I have an intense passion for...  moreIt was a fortnight when I had a singing contest contrived by Bangladesh’s prominent organizers for standard people who are passionate about music.I convinced to take part in the contest because ever since I was a child I have an intense passion for singing.
    Although,I was enthusiasm about singing but I never got an oppurtinity to show my tendency towards it.That time I was just a 13 year old teen. The host called my name.I strode onto the stage with my heart pounding like it’s gonna denotate out.
    A minute later after I commenced singing with all my confidence, I perceived people from the throng beginning to murmur and chortle.But i didnt care.Kept singing with all my might. One more minute passed by. And then everyone’s howling exploded.I had to cessate singing because the judge thumbed the red button.The rabble persisted guffawing at me.And from that day wherever I...    less

    • July 12, 2021
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    Taiba Anjum And from that day wherever I went, I was called “The Looser” But I couldn’t just loose so untimely. I had to achieve my goals and show everyone that I have aptitudes as well. ...  moreAnd from that day wherever I went, I was called “The Looser” But I couldn’t just loose so untimely. I had to achieve my goals and show everyone that I have aptitudes as well. Eventually, from age 15, I auditioned for a music company.Got passed.Became a trainee.Implemented vocals all day and night.Worked conscientiously. And in consequence, my hard work paid back.It wasn’t trivial.In an interval of 5 years, I achieved my aspire.Became a global pop star acquiring the loves from my fans.Even the ones who abominated me, are my fans now. It is just fortune and prosperity  less

    • July 12, 2021
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    Nirjona Akter I was a troublesome kid in my childhood who didn’t like to stay in one school for long. Moreover, getting beaten or standing in front of the class was a common thing. However, I enjoyed my school life to the fullest until one of the relatives said...  moreI was a troublesome kid in my childhood who didn’t like to stay in one school for long. Moreover, getting beaten or standing in front of the class was a common thing. However, I enjoyed my school life to the fullest until one of the relatives said sarcastically to my mother, ''You are wasting your money on your daughter. What she supposed to do in the future with this nature and result?''I was outraged and sad at the same time. So, I tried working hard from that day such as, attending school, doing homework for presenting a better version of myself. I would study for 4 hours and also tried to choose the quietest hours to study within 24 hours. In addition to these, I also examined myself with model questions every 7 days to evaluate my progress. Finally, I can say, all my efforts paid off and I never have to look back again. I was getting better day by day. For me, no one is Loser and will never be. We always learn something amazing with every experience.  less

    • July 12, 2021
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    Faisal Ahmed Faiz It happened in last year. When the COVID-19 attacked massively and we settled down for the home quarantine. I gave focus in my mobile game and aster 2/3 months I became a good player.
    
    So, I participated in South Asian Championship of Call of Duty...  moreIt happened in last year. When the COVID-19 attacked massively and we settled down for the home quarantine. I gave focus in my mobile game and aster 2/3 months I became a good player.
    
    So, I participated in South Asian Championship of Call of Duty Mobile. I hadn't any good devices and any support. I told my friends to pray for me but in that time they were laughing at me . As I wan introvert and belongs to a middleclass family they always ignored me and laugh at me.
    From that time I practiced with my team regularly and we went to the semifinal and then they saw my pic on every gaming community and after a week I won the South Asian Cup for my country.
    And I'm a renowned competitive player in Bangladeshi and Asian Community.
    Now I support new gamers, help them to increase experience and increase skills. And I want to help and make them as the jewel of our country.  less

    • July 12, 2021
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    Zarin sadaf snigdha Success, When we talk about the term success a lot of things comes to mind. But the true meaning of success is not quite what we think it is. When I was in school i was an introvert & had almost no friends. I was easily bullied by my classmates &...  moreSuccess, When we talk about the term success a lot of things comes to mind. But the true meaning of success is not quite what we think it is. When I was in school i was an introvert & had almost no friends. I was easily bullied by my classmates & even the other parents used to push me aside. One day even my teacher belittled me infront of the entire class saying I cant do anything right. I remember going home that day & I cried soo much but then something happened that changed my mind. My elder brother saw me crying & came to me & said " You can do anything if you just trust in yourself". The next day I started vlogging on YouTube. Initially there was no one but slowly I started to reach more people & got thousands of people who used to appreciate my work. Instead of just giving up I chose to take the first step & now I have thousands of fans around the world & my goal now is to inspire those around me who are struggling like I was & help them take the...    less

    • July 12, 2021
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    Shadman Chowdhury I started out as a bullied kid in middle school. I had two friends I cared about and they were both ok with being my friend. I knew that if one left I would be completely alone, so thrived on the social attention of people at school because it made me...  moreI started out as a bullied kid in middle school. I had two friends I cared about and they were both ok with being my friend. I knew that if one left I would be completely alone, so thrived on the social attention of people at school because it made me feel like someone actually cared about me, and there was no other place to get love from adults at home or my neighborhood due to gang activity.
    
    I didn't get bullied at all in high school; I had friends of all sorts of different cultural backgrounds and groups even if I wasn't on "the cool kids" level. The only thing that held me back from making close friendships was still the fact that I was awkward. So what I did was start joining in on teams and activities, not because I wanted to be extra friendly or social (though that was a side effect) but because whenever anyone is doing something they're passionate about it's easy to see their passion for the activity shine through.  less

    • July 13, 2021
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    Shadman Chowdhury The classmate (s) who did this made friends easily and naturally without having to try too hard; my whole life changed. I stopped being the shy kid who's too scared to approach people and became the guy who ends up befriending everyone because they're...  moreThe classmate (s) who did this made friends easily and naturally without having to try too hard; my whole life changed. I stopped being the shy kid who's too scared to approach people and became the guy who ends up befriending everyone because they're just so happy to have someone interested in their passions like me. Most of these kids are still some of my best friends today 6 years later.  

    • July 13, 2021
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    Seefath Talukder I am a bit shy and reserved person since my childhood. But I was excellent in music and my music teachers were satisfied with my performance. I was a high scorer when I was a student of BAFA. Though I could sing nicely in front of them and my family...  moreI am a bit shy and reserved person since my childhood. But I was excellent in music and my music teachers were satisfied with my performance. I was a high scorer when I was a student of BAFA. Though I could sing nicely in front of them and my family members when they requested me to sing in front of others or at any events I always felt shy and did not sing at all. Once we went to a picnic and a music competition had been arranged there. On that occasion, in front of everyone one of my relatives told me, you cannot do anything in your life, your parents are just wasting their time and they can put their attention on other things instead of this. His words just struck me and I made the oath that I will show everyone what I can do. Then I participated in that music competition and won the first prize. So, I think it is not the right way to judge anyone with the wrong perception and humiliate in front of others because it is not possible to identify everything only with personality. Whatever it is,...    less

    • July 13, 2021
  • 
    Kanta Akter Life is like a mirror. Every person has their way of seeing. In this mirror, we see what we want to see in ourselves. If we see ourselves as a loser then we will become a loser and if we look at ourselves as a winner then we will become winners.
    
    I...  moreLife is like a mirror. Every person has their way of seeing. In this mirror, we see what we want to see in ourselves. If we see ourselves as a loser then we will become a loser and if we look at ourselves as a winner then we will become winners.
    
    I always said to myself that I can win. Sometimes, I failed but never lose hope. Losing is natural and happens to everyone. But, it is not always in our hands, but being a loser is in our's hands. I failed several tests, especially in mathematics. So, I stuck to it until I became good at it. For me sticking with this made me realize the beauty of a mathematical formula.
    
    I think being a loser is very subjective. For some being a loser is passing with 40% while for someone it is dream come true. Being a loser will show you how life would hit you hard and keep you stuck in there permanently if you let it. So losing doesn't make you a loser but not getting up does.  less

    • July 13, 2021
  • 
    Mujtaba Rafid In a world where there are plenty of successful people with some of the most inspiring stories, my story may sound a bit bland. But I'm still proud of it. I never really had any issues with my grades but I did have weight issues.
    I was a sports...  moreIn a world where there are plenty of successful people with some of the most inspiring stories, my story may sound a bit bland. But I'm still proud of it. I never really had any issues with my grades but I did have weight issues.
    I was a sports enthusiast back in my school days and I always wanted to partake in various sports. But because of my weight, I always struggled and kids use to bully me for that. For that reason, no one really wanted to pick me. So yeah, I was that odd chubby kid who struggled to fit in. One day, I decided to take karate lessons which obviously did not go well because I got injured on the very first day. You can imagine how humiliated I felt. But something happened after that. For some reason, I became stubborn and I did not quit karate even though my parents advised me to quit. After the injury, I did everything to lose weight. That helped me to boost my performance. For some odd reason, I got really good at it and within a very short time, I got the black belt.  less

    • July 13, 2021
  • 
    Tanveer Tausif Ratul It was May 11,2018.
    I lost my one of the most beloved persons on earth.My Father.
    
    My father was a small businessman & I was then admitted to KUET where I am currently studying.His death was
    an...  moreIt was May 11,2018.
    I lost my one of the most beloved persons on earth.My Father.
    
    My father was a small businessman & I was then admitted to KUET where I am currently studying.His death was
    an irrepairable loss to our family because I have no brother & sisters who can support me and help me continuing my study.At that time some of my school
    friends said,”How can you continue your study now!!You have 4 more years to go.Besides, if you want to obtain higher degrees,you will have to go abroad which is impossible for you.So, why don’t you stop study?Rather you can start small business”.
    
    Actually this was not bullying & I knew that.It was my childhood dream to be an engineer.I had an uncle
    who was a Civil Engineer and he was working with a renowned company in Bangladesh.He had a very eye-catching Pajero car and whenever I saw it (in my childhood), I said to my mother “Ma,one day I will become an engineer like my uncle and I will ride on cars like this”.
    
    So,when my friends told me to stop...    less

    • July 14, 2021
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    Tanveer Tausif Ratul studying I became very much
    upset.I couldn’t sleep at night.Even,it happened that I spent the whole night crying because I thought that I will never be able to fulfill my dream.
    
    After 1 or 2 month, one day I was browsing internet and suddenly found a...  morestudying I became very much
    upset.I couldn’t sleep at night.Even,it happened that I spent the whole night crying because I thought that I will never be able to fulfill my dream.
    
    After 1 or 2 month, one day I was browsing internet and suddenly found a news that “A boy earns 15-20k per month by freelancing”.Then I thought-wow!!Why I am not trying that!
    
    
    At first I was nervous and I wasn’t sure that whether I could do it or not.Because I thought it would hamper my
    studies.But I decided to do it because I wanted to fulfill my dream at any cost.At that time,some of my uncles started helping us,so I thought if could bear the cost of my study,it would have become easier for my mom to run my family.
    
    From then I started freelancing.At first I didn’t earn that much but slowly i became successful.Honestly the
    income wasn’t too much but Alhamdulillah I could bear the cost of my study myself.At the eve of my 1st
    year,2nd semester,for registration I needed 10,320 including hall fees and so on.My...    less

    • July 14, 2021
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    Tanveer Tausif Ratul mom was so much tensed because she knew that she couldn’t afford that money.But I registered for that semester with my own earnings.Actually that was the first time I registered with my own earnings and it was one of the most emotional and memorable...  moremom was so much tensed because she knew that she couldn’t afford that money.But I registered for that semester with my own earnings.Actually that was the first time I registered with my own earnings and it was one of the most emotional and memorable days of my entire life.
    
    Still I am continuing my
    freelancing journey and my study simultaneously.I always prepare a weekly routine where I divide my time for study and freelancing and follow that strictly.Alhamdulillah, now I can help my family a lot and obviously I can bear
    all cost of mine by myself.I hope that one day I will be able to fulfill my dream.So, it was my story..
    
    
    
    Finally I want to say one
    thing.That is- FOLLOW YOUR DREAMS.  less

    • July 14, 2021
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    Rasheda Nisha I was a very dull student from the very beginning; therefore, my parents never expected anything better from me. They were even planning for my wedding after my SSC exam as they were very sure that I wouldn't be able to pass the exam. But fortunately,...  moreI was a very dull student from the very beginning; therefore, my parents never expected anything better from me. They were even planning for my wedding after my SSC exam as they were very sure that I wouldn't be able to pass the exam. But fortunately, somehow, I surprised them with an unexpected result and got a chance to be a part of a renowned college.
    I was thoroughly weak in English and couldn't bring any progress in my speaking, reading or writing ability. In the meantime, my younger sister was studying in an English medium school, and it's very obvious she was far better than me. While I was struggling with my disability, she started to mock me. The memory was truly hurtful.
    But I took it as a challenge. I took an oath that I am going to change myself anyhow, at any cost. I started to read English newspapers, listening to the BBC, CNN news reports, and the most important thing that helped me the most was English movies; I started to watch those almost regularly. Also, I was trying to...    less

    • July 14, 2021
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    Rasheda Nisha Also, I was trying to concentrate on their accent and copy that.
    This desperation took me to another level. I got a chance in a very reputed University, finished my study, gave my first interview to an English medium school and imagine what, I became a...  moreAlso, I was trying to concentrate on their accent and copy that.
    This desperation took me to another level. I got a chance in a very reputed University, finished my study, gave my first interview to an English medium school and imagine what, I became a part of that school. It's not the end; after my wedding, I was frustrated about my career as it was tough for me to do a job outside. But my passion, desperation again helped there.
    Somehow I found a free online course on content writing, finished that and started my online life there. Now my sister is learning writing from me, and I am helping her with a lot of enthusiasm. What I have learnt from my life is that: Never fear your weakness. Take a step ahead, fight your disability and win your fear.  less

    • July 14, 2021
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    Sumaiya Amir 'LOSER', for me this term has a very deep meaning. This four letter word isn’t a comfortable thing in someone's life. You have to go through a series of depressions, complications and sleepless nights if this term ever get connected with you. Well,...  more'LOSER', for me this term has a very deep meaning. This four letter word isn’t a comfortable thing in someone's life. You have to go through a series of depressions, complications and sleepless nights if this term ever get connected with you. Well, like everyone else, I also have many situations in my life where I considered myself as a complete loser.You know being an introvert makes you disconnected from social life and it's not a joke. Being like that I was ditached from every success I could have achieved earlier. I was a shy person who could not even order a food for herself in any restaurant. I was someone who used to know the answers of most of the questions in school but always hesitated to talk. But you can not be like this forever right? In this century if you want to be successful, you have to talk and discuss. You have to share your opinions so that other persons can know your value. My university clubs did a great job to pull out the talents of me. They forced me to talk everyday and...    less

    • July 14, 2021
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    Sumaiya Amir share my opinions with everyone. After 3months of continuous practice, I was selected as an anchor of our varsity convocation program. A girl who could not even talk became an anchor? Yes that is right. I had my will to change the awkwardness inside me...  moreshare my opinions with everyone. After 3months of continuous practice, I was selected as an anchor of our varsity convocation program. A girl who could not even talk became an anchor? Yes that is right. I had my will to change the awkwardness inside me and I succeed. If you want something truly, you will achieve that no matter what. Just have patience. You will surely be a winner of that once you thought would be your loosing point.  

    • July 14, 2021
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    Nanjiba Naowar Personally I was an introvert and a bookworm. I love writing. But shyness never lets me publish it. People used to say I am unable to make others understand my thoughts. I was Bullied for it. Last year I felt depressed but didn't find anyone to share my...  morePersonally I was an introvert and a bookworm. I love writing. But shyness never lets me publish it. People used to say I am unable to make others understand my thoughts. I was Bullied for it. Last year I felt depressed but didn't find anyone to share my pain. So I expressed my thoughts and pain in words on my facebook timeline. Alhamdulillah, Not only it cures my heavy heart but also friends start liking my writings and give compliments. Then one day, a friend asked me to do an internship as a content writer. I had no idea about it. I googled, learned, did low paid writing jobs, sent CVs, gave interviews and got rejected many times. Every time I fail I learn something new from my mistakes. Before the year ends, alhamdulillah, I have 2 paid freelancing writing works, one internship. Even i won a physics quiz of coolinventors though I have been a business student from the very beginning. I have many 'loser to successful' stories, but 'how an introvert girl becomes successful in sharing her thoughts' is...    less

    • July 14, 2021
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    Raju Loodh It was my college days story. That time I was not so good at English even I did not know how to write in proper way. We had an English Named ala Uddin. Every day while he come to class he used to tell. Just write something in English. It does not matter...  moreIt was my college days story. That time I was not so good at English even I did not know how to write in proper way. We had an English Named ala Uddin. Every day while he come to class he used to tell. Just write something in English. It does not matter how much mistakes you do. I will not give you punishment if you do any mistake but i will punish you if you don't write. Everyday i used write something in English. At begging i did many mistakes and he solved those mistakes and motivated me. Gradually, i started improving my English and at last I got chance one of the best public university in Bangladesh just because of my English. It was my college days story. At that time I was not so good at English even I did not know how to write properly. We had an English teacher Named ala Uddin. Every day he used to tell. Just write something in English. It does not matter how many mistakes you do but you have to write. I will not give you punishment if you do any mistakes but I will punish you if you don't...    less

    • July 15, 2021
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    Shaikh Nafisa Binte Fahad The famous world-class boys of the BTS band also took part in their fight and it was heartbreaking to hear their story. The boys were about to give up and almost lost hope. But they stood together and today their fight has led to a worldwide reputation...  moreThe famous world-class boys of the BTS band also took part in their fight and it was heartbreaking to hear their story. The boys were about to give up and almost lost hope. But they stood together and today their fight has led to a worldwide reputation as one of the best and most well-known K-pop bands in the world.
    Taehyung was a son of a farmer; RM's mom used to pressure him about his studies, career; Suga, who loved music but his family always burnt all his hard work as they wanted him to focus on his studies.
    The band has almost spread out because they don’t have enough money to continue, no funds, so a few members had to choose between food and transportation and do two things. Behind their confident presence, they were constantly battling self-doubt and frustration. In fact, there is a difference even if everyone loses. "The real losers in life are not those who try and fail, but those who fail to try."  less

    • July 16, 2021
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  Shaikh Nafisa Binte Fahad is now friends with Fatima Ahmed.

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  Andy Morales and The Rain - $5 Physics Quiz

  Andy Morales and the Rain - $5 Physics Quiz
   
  It's 6p.m, time to leave the railway station - Andy thought to himself, with a big sigh. Living a lonely life since the demise of his wife two years ago, everything to him seemed monotonous and tedious....

  • July 16, 2021

  • Hasnain Tariq likes this.
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    Hasnain Tariq Andy Morales follow the rule of moment arm. moment arm is the perpendicular distance b/w line of action and axis of rotation. In this case we will consider roots as an axis and other part is line of action . According to this rule if Andy Morales apply...  moreAndy Morales follow the rule of moment arm. moment arm is the perpendicular distance b/w line of action and axis of rotation. In this case we will consider roots as an axis and other part is line of action . According to this rule if Andy Morales apply force at axis of rotation . Tree will never move because moment arm is zero but they applied force at other end so tree move away easily  

    • July 12, 2021
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    Zarin sadaf snigdha Here Andy is following the laws of Moment. Here the roots are the axis of rotation & the tree is the line of action. If Andy applies force on the axis of rotation the tree will never move as it is the pivot point & Moment will be zero. But if he...  moreHere Andy is following the laws of Moment. Here the roots are the axis of rotation & the tree is the line of action. If Andy applies force on the axis of rotation the tree will never move as it is the pivot point & Moment will be zero. But if he applies force on the other side it will be on the line of action & this Moment will be maximum & the tree can be moved easily as it is at the point of tipping over due to the weight of the roots.  

    • July 12, 2021
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    Shadman Chowdhury The answer to this question is quite simple and straightforward. The force exerted (Trying to lift the tree) was, Tension force of rope=Tension force at a certain distance from the End of the rope= Force that would be required to push (lift) the car...  moreThe answer to this question is quite simple and straightforward. The force exerted (Trying to lift the tree) was, Tension force of rope=Tension force at a certain distance from the End of the rope= Force that would be required to push (lift) the car upwards if it were not attached to anything else.
    
    In physics it's called as- "The Loewy Effect"
    
    Now, when he went near the tree, it was easier to push upwards on car since it's a force acting in the opposite direction of his weight. AND thus, when Andy started pushing upwards, he seemed to be lifting it up instead of just pushing it up
    
    So, he was applying force on the car in such way that it seems like car is being lifted up. By pushing upwards at a certain distance from the root of tree, there was no weight (applied) in opposite direction and thus moving towards applied force gives him more effect than when pushing downwards.
    
    Thus, the force to lift the car was directly proportional to distance from tree's roots.  less

    • July 13, 2021
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    Tanveer Tausif Ratul Andy actually used the theory called-MOMENT.So the question is what is moment?Moment is the measure of the ability of a force to produce rotation/turning effect of an object about a fixed point or an axis.It can be measured by a simple formula which is...  moreAndy actually used the theory called-MOMENT.So the question is what is moment?Moment is the measure of the ability of a force to produce rotation/turning effect of an object about a fixed point or an axis.It can be measured by a simple formula which is M=r*F,where F is the applied force on that body, r is the perpendicular distance of the force from the center & M is the moment which will be produced for that force.From the equation,it can be said that,if the applied force is constant,then moment is proportional to the distance between center of the body and applied force.So,if the force is applied near the center point,the moment will be smaller which means it will be difficult to rotate that body.On the other hand,if the force is applied far from the center,the moment will be bigger which means it will be easier to rotate that object about the same center point.
    
    
    Now I will describe it using Andy’s phenomena.In that criteria the root of the tree was the center point mentioned above.Imagine those...    less

    • July 13, 2021
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    Tanveer Tausif Ratul people were applying 10N force.
    
    
    So when they were trying to uproot the tree from the bottom side,which means the applied force was near...  morepeople were applying 10N force.
    
    
    So when they were trying to uproot the tree from the bottom side,which means the applied force was near the
    center point(the root).As a result the moment became smaller and for that,it became very difficult to move the tree.But when Andy applied that same 10N force at the other side of the tree,the distance between the root and the force became much bigger.Then the moment was bigger than the previous one.So,it became easier to move the tree then.
    
    
    So the whole concept was about
    Moment of a force.  less

    • July 13, 2021
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    Hasnain Tariq hi Tanveer how you can assume that they need 10 N force to move the tree away . did you know 10 N is actually required to displace mass of 1.02 kg and i think mass of tree is much higher

    • July 14, 2021
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    Rohan Deb Because of Laws of Moment it was easier to lift the tree away from it roots. We have to apply Total Anticlockwise Moment=Total Clockwise Moment. Suppose the roots of the tree has a moment of 25N/m after falling onto the car. So in order to lift the tree...  moreBecause of Laws of Moment it was easier to lift the tree away from it roots. We have to apply Total Anticlockwise Moment=Total Clockwise Moment. Suppose the roots of the tree has a moment of 25N/m after falling onto the car. So in order to lift the tree from the car the same 25N/m of moment should be applied to the force acting away from the tree's roots.  

    • July 14, 2021
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    • 1 likes this
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    Moneera Chowdhury To push the tree up, you have to give a force that is bigger than the tree's weight. At a distance further from the roots, the distance you have to move the tree from the ground to upright is bigger than the distance closer to the roots. To make up for...  moreTo push the tree up, you have to give a force that is bigger than the tree's weight. At a distance further from the roots, the distance you have to move the tree from the ground to upright is bigger than the distance closer to the roots. To make up for the short distance, you have to give a powerful force, which makes it harder to push the tree up. The weight of the tree is spread out across the distance, a longer distance means the weight is more spread out, making it easier to lift the tree.  

    • July 15, 2021
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    Wafeeqa Hoque Mr. Morales implemented the concept of ‘moment’. Moment can be defined as the turning effect of a force around a pivot by the perpendicular/ at right angle distance between the pivot and force applied.
    -Pivot: Is the fixed point over which...  moreMr. Morales implemented the concept of ‘moment’. Moment can be defined as the turning effect of a force around a pivot by the perpendicular/ at right angle distance between the pivot and force applied.
    -Pivot: Is the fixed point over which something can turn or move about. For ex. In a wheelbarrow, the wheel will be the pivot.
    -Turning effect of force applied: This is simply the turning of the object about the pivot. For ex. A spanner being turned about a bolt (pivot) to tighten or loosen it.
    Here, the tree’s roots were still embedded in the ground and we know that fixed point forms the pivot. So if the roots are firmly in the ground, it won’t be possible to uproot the tree from the bottom end(roots’ side). If they tried lifting the tree over a short distance from the pivot, this would give the less efficient moment and would need a hefty amount of force. However, if the tree was lifted from the other end, force required is less and gives the proper result. This is basically because the...    less

    • July 15, 2021
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    • 1 likes this
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    Wafeeqa Hoque ...
    This is basically because the farther you are from the pivot, the lesser force required.

    • July 15, 2021
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    Abeer Muhammad Andy used what is called the turning effect of a force, also
    called the moment of a force. To understand this, we need to know a couple of
    things:...  moreAndy used what is called the turning effect of a force, also
    called the moment of a force. To understand this, we need to know a couple of
    things:
    
    
    a.
    There is a pivot (i.e. the point at which the
    object rotates)
    
    
    b.
    The effect of a force is greatest at the furthest
    distance possible from the pivot
    
    
    What the people there were doing wrong was that they were
    trying to lift the tree from near the pivot. However, the tree hadn’t
    completely uprooted and had little effect upon lifting the tree. Andy’s
    instincts told him to lift the tree at the furthest end from the pivot, meaning
    that the effect of the force will be at its peak. In doing so, they were able
    to save the person inside the car.  less

    • July 15, 2021
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    Arika Afrin Greater distance from the pivot, less force is required so in this case, the pivot is the root of the tree and if you are close to the pivot which is the root then it will require more force or it will be impossible to lift it up and Mr. Morales went to...  moreGreater distance from the pivot, less force is required so in this case, the pivot is the root of the tree and if you are close to the pivot which is the root then it will require more force or it will be impossible to lift it up and Mr. Morales went to the other side of the tree so away from the pivot so it required less force to lift it up.  

    • July 15, 2021
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    Jawadul Islam Chowdhury Imagine a wrench tightly fitted onto a nut. If you were to move the wrench from the head, a lot of energy would be required to do that. However, if you were to move the wrench from the head side, a lot less energy would be needed to move the wrench. The...  moreImagine a wrench tightly fitted onto a nut. If you were to move the wrench from the head, a lot of energy would be required to do that. However, if you were to move the wrench from the head side, a lot less energy would be needed to move the wrench. The same logic applies to the tree  

    • July 15, 2021
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    • 1 likes this
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    Syeda Anmol Andy used the ideology of moment. Moment of force is the idea to make a body to rotate on a pivot. Moment has a simple rule that is the closer you are to the pivot or the point the more energy you would require to rotate the body. This rule is obeyed by...  moreAndy used the ideology of moment. Moment of force is the idea to make a body to rotate on a pivot. Moment has a simple rule that is the closer you are to the pivot or the point the more energy you would require to rotate the body. This rule is obeyed by many objects which we use in our day-to-day life. Like a spanner handle is placed far from the pivot to rotate the nut or nail easier with less force. Similarly, in this case the pivot is the root of the tree, it is the turning point for the tree, when the crowd gathered they applied force very close to the pivot or the root this cause the tree not to budge but when Andy positioned the force on the far end from the pivot it made it easier for the crowd to move the tree. In simple, we can sum it up that the greater the distance the less the force needed and the smaller the distance the more force is needed which this scenario perfectly portrayed.  less

    • July 15, 2021
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    Nishat Tamanna Mr. Andy chimed in with the idea of momentum. Momentum is the product of force and the perpendicular distance between the pivot and line of force. He considered providing a force greater than the weight of the tree, but this is only feasible if the force...  moreMr. Andy chimed in with the idea of momentum. Momentum is the product of force and the perpendicular distance between the pivot and line of force. He considered providing a force greater than the weight of the tree, but this is only feasible if the force is delivered on the other side of the root.
    It is a fact that when a force is applied far from the pivot, the force is sufficient to elevate the other force/weight. Mr. Andy used that notion when assisting the individual.  

    • July 15, 2021
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    Farhan Shahid Andy's idea concerns the effect of moments. The idea about moments is that the further a force acts away from the pivot(the turning point of an object), the more effective it will be in turning the object. For example, the knob of a door is situated the...  moreAndy's idea concerns the effect of moments. The idea about moments is that the further a force acts away from the pivot(the turning point of an object), the more effective it will be in turning the object. For example, the knob of a door is situated the farthest from its pivot, the hinges. In the picture, we can see that the tree is tilted down towards the side of its roots. From this, we can guess that(counting the car as a pivot) there is a greater load acting downwards in that side of the tree, than the side with the leaves. The way the people were doing it before, they were wasting strength overcoming all the those forces and uprooting the tree. They were using the car as a pivot, and the distance between their force and the car/pivot was not much. However, pushing in an anticlockwise direction on the other side, with the leaves, shifts the pivot from being the car to being the roots, all the way on the other side of the tree. The pivot being far away, the forces proved effective.  less

    • July 15, 2021
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    Abdullah Masud Mr Andy was able to use the principles of moment in the above scenario. As mentioned in the scenario, the roots of the tree were fixed with the ground so it was a fixed point and a fixed point is called a pivot. This pivot allowed the tree to be removed...  moreMr Andy was able to use the principles of moment in the above scenario. As mentioned in the scenario, the roots of the tree were fixed with the ground so it was a fixed point and a fixed point is called a pivot. This pivot allowed the tree to be removed over the car. According to the principles of moment, the distance from the pivot to the point where the force is applied is directly proportional to the moment, meaning the longer this distance, the greater the rotation of the tree and that is why Mr Andy applied his force on the farther end of the tree so that with less force would produce greater moment due to the longer distance, away from the tree and was successful to remove it and save the passenger.  less

    • July 15, 2021
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    • 1 likes this
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    Shaikh Nafisa Binte Fahad Andy told others to help lift the tree from the other side, as the force acting away from the root of the tree made it easier to lift the tree than near the root.
    The car was acting as a pivot here because the weight of the whole tree was on the car. The...  moreAndy told others to help lift the tree from the other side, as the force acting away from the root of the tree made it easier to lift the tree than near the root.
    The car was acting as a pivot here because the weight of the whole tree was on the car. The bottom side of the tree was not uprooted, so it was heavier than the upper part, so more force was needed to lift it from near the roots. Therefore, it was easier to lift the tree upwards at a certain distance away from the root of the tree as there was less weight in the upper direction.
    Today, we learned about a great example in the field of physics. this topic can be identified as the 'moments'. Moments are directly proportional to the force and distance of a body, just like this one! Easy-Peasy!  less

    • July 16, 2021
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    Raheeb Arman Andy uses the idea of moment. Moment of a force is a measure of its tendency to cause a body to rotate on a pivot. Moment justifies that closer you are to the pivot, more force is required to move the object. This law is obeyed by many objects which we...  moreAndy uses the idea of moment. Moment of a force is a measure of its tendency to cause a body to rotate on a pivot. Moment justifies that closer you are to the pivot, more force is required to move the object. This law is obeyed by many objects which we use in our daily life. For example, if we use a nut-cracker the more the distance is, the less force is required. The less the distance is, the more force is required. Similarly, in this case the pivot is the root of the tree which is the turning point. The crowd tried to lift the tree by going closer to the pivot but they were doing it wrong as the tree is not fully uprooted. But, Andy did it in a correct way because the distance was more from the pivot which made it easier to move the tree which ultimately helped to save the person. In simpler words, if we sum up, the more the distance from the pivot the less force is required and the less the distance from the pivot the more force is required to lift the body which is demonstrated in this scenario.  less

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