Siphon
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A siphon is any of a wide variety of devices that involve the flow of liquids through tubes. In a narrower sense, the word refers particularly to a tube in an inverted "U" shape, which causes a liquid
Siphoning beer after the first fermentation
Siphon irrigation of cotton at St George, Queensland.
A siphon used for homebrewing beer
Siphon spillways draining a reservoir along the Boardman River near Traverse City, Michigan, in 2017
Pythagorean cup
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A Pythagorean cup is a practical joke device in the form of a drinking cup. When it is filled beyond a certain point, a siphoning effect causes the cup to drain its entire contents through the base. T
Siphon
…Egyptian reliefs from 1500 BC depict siphons used to extract liquids from large storage jars. Physical evidence for the use of siphons by Greeks are the Justice cup of Pythagoras in Samos in the 6th century BC and usage by Greek engineers in the 3rd century BC at Pergamon. Hero of Alexandria wrote extensively about siphons in…
Cross section of a ceramic Pythagorean cup
The cup illustrated in a 14th-century manuscript of Hero's Pneumatica, generally assumed to closely follow the original.
Instructions of how to use the Pythagoras' cup by Kotsanas Museum of Ancient Greek Technology.
A Pythagorean cup sold in Crete, known as o kounenos tis dikaiosynis ("the cup of justice")