{"id":48222,"date":"2026-07-26T11:30:28","date_gmt":"2026-07-26T15:30:28","guid":{"rendered":"https:\/\/www.thebeertimes.com\/?p=48222"},"modified":"2026-07-26T12:21:32","modified_gmt":"2026-07-26T16:21:32","slug":"what-is-pythagoras-cup-glass-empties-completely-if-you-pour-too-much","status":"publish","type":"post","link":"https:\/\/www.thebeertimes.com\/en\/what-is-pythagoras-cup-glass-empties-completely-if-you-pour-too-much\/","title":{"rendered":"What Is Pythagoras’s Cup? The Glass That Empties Completely If You Pour Too Much"},"content":{"rendered":"
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If there is one thing beer and wine lovers know, it is that sharing a good drink matters as much as the drink itself. But in ancient Greece, as today, there was always someone who overstepped and filled their cup to the brim.<\/p>\n

\"Pythagoras\"
Pythagoras<\/figcaption><\/figure>\n

To put a stop to these greedy drinkers, the mathematician and philosopher Pythagoras devised a solution as ingenious as it was mischievous: the Pythagoras Cup, also known as the Greedy Cup or the Cup of Justice.<\/p>\n

Key Facts About Pythagoras’s Cup<\/h2>\n
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  • The device relies exclusively on gravity and atmospheric pressure to trigger the sudden emptying of its contents, with no need for external energy.<\/li>\n
  • A hidden tube runs through the inside of the cup, connecting the base to a lower opening at the foot of the vessel to allow fluid to exit. <\/span><\/li>\n
  • The liquid is held perfectly inside until its level exceeds the top of the inner tube, at which point the static equilibrium breaks. <\/span><\/li>\n
  • Once <\/span>the downward flow begins, the pressure difference pulls all the contents outward with no way to stop it manually.<\/span><\/li>\n<\/ul>\n