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Blog post: swansont: More Fun Than Plato's Coaster

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Physics demonstrations: the Pythagoras cup

 

This is the trick of the Pythagorus cup, also known as the Pythagorean cup or the Tantalus cup! It can be used as a nice prank to play on someone (don’t use red wine, unless you need to replace your carpeting anyway), but also serves as a nice demonstration of some physics of fluids.

 

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