Uphill battle (of water and gravity)

Inventor make an M.C. Escher-like garden waterfall - where the water appears to travel uphill.

But if you want to build it yourself, beware - it's (presumably) patented. Silly, because I guessed (correctly) half of the antigravity feature before I saw the diagram. Isn't a patent supposed to be non-obvious?

Besides, water parks already make water run uphill. In the trough of a tubular water slide, jets push the water and the swimmer up a short section. The swimmer needs momentum, but the water does move against gravity.

Written by Andrew Ittner in misc on Thu 22 May 2003. Tags: commentary