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Take an A4 piece of paper. |
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Cut it in half as you can see here. |
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Then place one half of the paper so that half is on the desktop and half is hanging off. |
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Take a one pound coin and try to balance it on one side. |
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You've now got to try and whip the paper out from underneath without disturbing the coin. Sounds tricky but it's very possible! Lick your fingers to make them sticky... |
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...now place your fingers down really really fast on the piece of paper that's hanging over the desktop. |
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Eureka! |
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