Re: Dyson spheres are not dark

Hara Ra (
Sun, 29 Jun 1997 23:34:25 -0700

Dejan Vucinic wrote:
> energy, a thermodynamic engine. Therefore, a well-designed Dyson
> sphere would look just like a star from here. A paranoid designer
> might even go to some length to ensure that the spectrum of the
> outgoing radiation looks "natural" to a casual observer.
If the Dyson Sphere looks like a star, there's no way for the
thermodynamic engine to function. However, Infrared astronomy is just
beginning, and IR radiating Dyson Spheres might be the answer to the
missing "dark matter" problem, ie the answer to the Fermi Paradox is
"They're everywhere, you just can't see them" ...

(Note: a 100 AU Dyson Spere would have an IR temperature of Pluto....)

| Hara Ra <> |
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