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"The point sticks in your head: physics rules. Virtue does not triumph unless the physics allows it."
- Larry Niven

Frictionless Toilet  
  A toilet bowl that does not require water, because its surface is frictionless.  

The bathroom - the toilet was different. Just as he had sketched it. Wrong; there wasn't any water in it. And no flush. What the hell, there was only one way to test a toilet. When he looked, the bowl was sparkling clean. He poured a glass of water into it and watched it run away without leaving a drop. The bowl was a frictionless surface. Have to mention this to Bury, he thought. There were bases on airless moons, and worlds where water, or energy for recycling it, was scarce.
From The Mote in God's Eye, by Larry Niven (w/J. Pournelle).
Published by Simon & Schuster in 1974
Additional resources -

Compare with the frictionless coating from Clifford Simak's classic 1963 novel Way Station and the water repellent surface from Frank Herbert's Dune.

Thanks to Winchell Chung of Project Rho for contributing this item.

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Additional resources:
  More Ideas and Technology from The Mote in God's Eye
  More Ideas and Technology by Larry Niven (w/J. Pournelle)
  Tech news articles related to The Mote in God's Eye
  Tech news articles related to works by Larry Niven (w/J. Pournelle)

Frictionless Toilet-related news articles:
  - Frictionless Toilet Could Save 140 Billion Liters Of Water

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