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"There's a tendency to think that maybe if we can just throw enough hardware at the AI problem, then evolution can take care of the rest. Certainly that's how God went about making us."
- Rudy Rucker

Superconductor of Heat  
  A light metal that accepts heat applied to its surface, and then dissipates the energy throughout the material, leaving the temperature of the material unchanged.  

A superconductor is a substance that will conduct electricity without resistance; typically, a very low temperature is required. Electrical current will flow forever in a closed loop of super conducting material

Lafferty used his cutting laser. They stood around watching the narrow green beam do nothing to the silvery casing. Staley wondered: where was the energy going?

He took a thermometer reading. The casing was just less than red-hot all over. When Lafferty turned off the laser the casing cooled rapidly; but it maintained the same temperature at every point.

A superconductor of heat... They tore sheets off with their gauntleted hands.

From The Mote in God's Eye, by Larry Niven (w/J. Pournelle).
Published by Simon & Schuster in 1974
Additional resources -

The obvious advantage of a superconductor of electricity is that there is no loss; the power received at the device is equal to the power generated at the source. A superconductor of heat would make it more efficient to heat specific areas using a centralized system

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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)

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