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  • hello and welcome to hooplakidzlab making science super fun and super simple

  • today we're performing the smiling bill experiment. it's one of my favorites and it's a lot of

  • fun firstly you're going to need a £10 note or

  • any note with a face but do make sure that the face is facing forwards

  • you'll see here that on this £10 note we have the face of the queen of england

  • what you need to do first is fold the £10 note over so that there is a crease that runs

  • down the center of her right eye then fold the note again in the same direction

  • to form a crease down the center of her left eye

  • then very carefully push those two creases together to form a crease running in the opposite

  • direction if you do it right she'll look a little bit

  • like a cyclops once you've done that straighten the note

  • out again but make sure there is still a bend in the paper and then slowly tilt the piece

  • of paper backwards and forwards you'll see that the queen starts to frown

  • or smile depending on which way you tilt the paper

  • but how does this work well it's very simple it's because of the

  • fold in the paper it slightly changes the angle at which you're

  • looking at that section of the picture we can try this experiment again with a $20

  • bill use the same technique

  • place a crease through each of the eyes and then a third crease running between the

  • two if we straighten out the bill and then tilt

  • it you'll see that jackson becomes very happy and then very sad

  • and there we have it that is the smiling bill experiment

  • hope you enjoyed it don't forget to subscribe and comment

  • it's been great having so many of you following the channel

  • we hope you'll come back soon for more exciting science

  • see you soon

hello and welcome to hooplakidzlab making science super fun and super simple

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B1 中級

自宅でできる科学実験 - 笑顔のビル (Science Experiment That You Can Do At Home - Smiling Bill)

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    Ryan Lee に公開 2021 年 01 月 14 日
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