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Some people might also be surprised by the fact that some black holes have low density...
Originally posted by merkins
reply to post by SaturnFX
I ws wondering who'd mention them first. A couple of years back I read a great P F Hamilton series where dyson spheres pay a large part.
I've wondered for many years whether the universe's missing matter/mass is simply hiding behind such structures, even on scales larger than galaxies. Perhaps the great voids between the galactic filament structure of the universe are not voids at all but instead dyson structures designed not only to make efficient use of energy for the long long future, but also to hide/separate/quarantine us from them.
Originally posted by Soylent Green Is People
reply to post by SaturnFX
Plus, the point of a Dyson Sphere built around a star is that it would capture all of the energy being radiated by that star -- which is a hell of a lot of energy.
I suppose a race could feasibly build a shell around a back hole (outside of the event horizon, almost certainly), but then I'm not sure if that would technically be a Dyson Sphere -- at least not in the strict sense of the term, since it would not be capturing the radiated energy of a star.
edit on 3/3/2013 by Soylent Green Is People because: (no reason given)
Originally posted by Bilky
reply to post by Soylent Green Is People
I think it would be safe to say that it is an incredibly hostile place. Not somewhere the standard spacefaring civilization would want to hang around.
Originally posted by SaturnFX
hmm..wouldn't it be a hoot to find out there are no such things as black holes..rather, all the discovered black holes are simply dyson sphere's. ..could explain why we haven't found as many black holes as we suspected we would (and answer some big questions in the meantime)
Originally posted by Bedlam
Originally posted by SaturnFX
hmm..wouldn't it be a hoot to find out there are no such things as black holes..rather, all the discovered black holes are simply dyson sphere's. ..could explain why we haven't found as many black holes as we suspected we would (and answer some big questions in the meantime)
Dyson spheres radiate like mad in IR. It's a dead giveaway.