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greedy-cup

 I had no idea what a Pythagoras Cup was but now I know and I still don’t think I need it.
A Pythagorean cup (also known as a Pythagoras cup, Greedy Cup, Tantalus cup or o kounenos tsi dikaiosynis) is a practical joke device in a form of a drinking cup, credited to Pythagoras of Samos. When it is filled beyond a certain point, a siphoning effect causes the cup to drain its entire contents through the base.

More Mercury: https://youtu.be/5I4rxfnCtxY
Numberphile for Pythagorean math: https://youtu.be/ItiFO5y36kw
Buy a Pythagorean Cup on Amazon: http://bit.ly/Pyth_Cup
This features features Professor Sir Martyn Poliakoff from the University of Nottingham.

physagorian_pythagoras_greedy_tantalus

Siphon in vacuum: https://www.youtube.com/watch?v=8F4i9…

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From the School of Chemistry at The University of Nottingham: http://bit.ly/NottChem

Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/
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