Open in the curiosity app
The Pythagoras Cup

The Pythagoras Cup

The Pythagoras cup is also called a Greedy cup. Its secret lies in its central column, which houses an upside-down-u-shaped pipe. Today, some toilets use the same ancient design as a flushing mechanism.

Periodic Videos
Share the knowledge!

Key Facts In This Video

  1. Pythagoras invented the Pythagoras cup so that none of his students would receive more than their share of wine. 00:19

  2. Watch an animated demonstration of how the Pythagoras cup prevents drinkers from getting too greedy: 01:48

  3. Putting liquid mercury at the bottom of a Pythagoras cup will prevent it from working. 03:09

A more curious you.

Join millions of lifelong learners