The World's Tallest Pythagoras Cup—Does It Still Drain?

A video on YouTube. In Science & Engineering, a Krater category.

Summary by Krater

The creator tests and explains the mathematics and physics behind a 3D printed 'deluxe Pythagorean cup', a mug designed to drain completely if filled past its fill line due to a hidden internal siphon tube.

From the video

Answers: How does a Pythagorean cup work and how tall can it be before it fails?

Pythagoras cup physics
Siphon mechanism in mugs
Fluid dynamics of straws
3D printing functional mugs
Water pressure limits in siphons
Bambu Lab 3D printers

What it concludes

A siphon cannot suck liquid up if the straw is longer than 34 feet at standard atmospheric pressure.
The true height of the straw in a Pythagorean cup is the height of the cup minus the level of water in the cup.
As the height of a Pythagorean cup increases beyond the straw limit, progressively less water drains from the cup, approaching 100% water remaining for infinitely tall cups.

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