Pythagoras cup, Greedy Cup, Cup of Justice, Tantalus cup or i koupa tis dikaiosynis Fair Cup 7.5CM

There is no opening at the top of the pot and the water is filled from a flower-shaped hole at the bottom.

Pythagoras cup, Greedy Cup, Cup of Justice

Get the Complet set with the Assassin’s teapot

The story about this mysterious cup!

Cross-section of a Pythagorean cup being filled: at B, it is possible to drink all the liquid in the cup; but at C, the siphoning effect causes the cup to drain.

 mystery bottom-filling teapot made in Yaozhou, which was known historically as the blue-glazed ceramic capital of the Ancient Tang and Song Dynasties.
 
The mystery bottom-filling teapot was an imitation of the teapot from the Northern Song Dynasty (now housed as a National-Treasure Designated Collection in Shaanxi Provincial Museum in Xian, China).
 

The magic „Justice“ cup has a dragon head in the middle with mouth and bottom openings. The cup can only hold a certain amount of water. If one pours too much water, then all the water in the cup would be drained through the dragon bottom opening.

The legend has it that The Tang Emperor presented the cup to his newly-wed prince and princess as a cautionary tale that one who is too greedy could instead lose all he possesses. The set also includes a „Jue“, a reproduction of a Shang Dynasty (ca. 1200 BC) wine-drinking vessel.

This teapot set can be used as either a decorative display or a working teapot set with magic and mysterious properties and a legend to tell.

There is also a different story about this mysterious cup
A Pythagorean cup is a form of drinking cup which is a deep sense of control measures of a drink.

Creating a bowl ranked among the discoveries of Pythagoras of Samos.

The uniqueness of the bowl of Pythagoras is a fairly simple principle that works as a mechanism of the valve filling the cup up to a certain level you can drink its contents as a regular cup but that’s as soon as we overfill the liquid over the mark level of the cup all of its contents follows through a hole located at bottom of the bowl.

„Tradition says Pythagoras, during water supply, works in Samos around 530 BC moderated the workers‘ wine drinking by inventing the ‚fair cup‘.

When the wine surpasses the line, the cup totally empties, so the greedy one is punished.