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4hv.org :: Forums :: General Science and Electronics
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The "First Contact" thread

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Conundrum
Mon Apr 28 2014, 07:05AM Print
Conundrum Registered Member #96 Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4061
Link2

Um, has anyone considered that this may be a failed Dyson sphere ?

Possibly the star inside might have run out of energy unexpectedly which would explain the low temperature as most of the energy would be contained within the sphere and what we see is merely the low energy radiation that escaped.

If so then this suggests that there was intelligent life in the universe a lot longer ago than we thought.

-A
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Bored Chemist
Mon Apr 28 2014, 07:56PM
Bored Chemist Registered Member #193 Joined: Fri Feb 17 2006, 07:04AM
Location: sheffield
Posts: 1022
"the star inside might have run out of energy unexpectedly"
How?
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Shrad
Wed Apr 30 2014, 09:50AM
Shrad Registered Member #3215 Joined: Sun Sept 19 2010, 08:42PM
Location:
Posts: 780
the dyson sphere is a fascinating device in itself... what if there were some primes somewhere, waiting for us to call?
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Conundrum
Thu May 01 2014, 07:26AM
Conundrum Registered Member #96 Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4061
Well, its possible that a civilization around a dim red dwarf star may have built a Dyson sphere as a last ditch attempt to save themselves.
Its a plausible hypothesis, this object if shrunk to typical star size *might* be able to sustain fusion but just barely.

also Link2
If the aliens were able to emit their waste heat as light rather than infrared, from a distance the star would "look" perfectly normal and the weak infrared emissions would be totally swamped.
This could be done very easily, see Link2
Also the lack of radio signals could simply be because they are encrypted and spread spectrum.

""the star inside might have run out of energy unexpectedly"
How?"

Or it could look like it has, in fact most of the energy would be used for making MBHs for their stardrives.
(thanks to Prof. Hawking for this idea)
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