Re: Dyson Dumbells: Was: Re: the ultimate refrigerator

Anders Sandberg (
16 Dec 1997 15:19:53 +0100

Michael Lorrey <> writes:

> This gives me a solution to the Cosmic Filter dillemma. Rather than a
> Dyson Sphere radiating its encircled star's output as black body
> radiation, the inside surface would be coated in thermal superconductor
> material.

Are there any thermal superconductors? I have a strong feeling this is
a myth started by Larry Niven's mistake in some of his books that
electrical superconductors are thermal superconductors. Of course, I
see nothing wrong the idea of phonons somehow forming coherent pairs
or something similar, but it appears very unlikely.

Anders Sandberg                                      Towards Ascension!                  
GCS/M/S/O d++ -p+ c++++ !l u+ e++ m++ s+/+ n--- h+/* f+ g+ w++ t+ r+ !y