It is a wafer-thin disk. It won't stand on its edge. So how can I achieve this as in the picture? A-level Physics students playing for a Twirl trying to balance the disk A fun lesson intro to discovering centripetal forces.
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Buffon’s Needle — Can Dropping Sticks Measure Pi?
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Conway's Game of Life — Can Mathematics Become Alive? Four simple rules. An infinite chessboard. And behaviour nobody explicitly progr...
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