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Dyson Sphere

4_of_20

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Report this Nov. 26 2009, 5:51 pm

Nah, no ventilation needed, that's kinda the point. A phase 2 society needs all the heat and energy of the sun to survive. That's why it's encapsulated.

But in reality, there would be a form of ventilation. Dyson Sphere's wold probably be constructed by destroying larger planets and moving all their resources to Earth's orbit, where they would be converted into hundreds more Earth-sized rocks. A ring would form around the sun, and if you viewed the ring as horizontal there would still be light coming from the top and bottom of the star, and through some of the cracks in the ring.

But observational evidence suggest there's not many Dyson Sphere's in our galaxy.

Jereath

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Report this Nov. 26 2009, 6:48 pm

I am going to build one

Jereath

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Report this Nov. 26 2009, 7:29 pm

and I am going to lock you in it :laugh: :laugh: :laugh:

caltrek

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Report this Nov. 26 2009, 8:31 pm

Well, it seems to me that a Dyson Sphere would be an enormous effort of engineering construction dwarfing anything that humans have built to date by several orders of magnitude. As to some of the questions posed at the beginning of the thread, I suppose a lot would depend on the size of the sun in question. A smaller size star might be somewhat more manageable, though still way beyond anything humans have done.

Getting the building material together would be an enormous undertaking. You would probably have to convert several of the planets in a solar system as well any asteroid belts into your raw material for construction. Then you would probably need to haul in material from neighboring solar systems as it seems unlikely that there would be enough material in just the one solar system, especially around a smaller start. One wonders how any advanced civilization could see this as being an economicaly viable endeavor, but then who am I to say what conclusions a technological civilization way in advance of our own might reach.

Jereath

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Report this Nov. 26 2009, 8:33 pm

it just has to hold  TheChronicOne so I can catapult him into the sun :D

caltrek

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Report this Nov. 26 2009, 9:12 pm

..and instead of a sun at it's center, are you going to put in a triple AAA battery?

4_of_20

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Report this Nov. 26 2009, 11:29 pm

Nah, I'm describing a different kind of Dyson Sphere that is more like a ring (probably more cylindrical) of planets at Earths orbits distance, that humans could spread out onto and harvest more solar energy than they can with one planet.

It's simply an idea I read once proposing a slightly "easier" way around the problem of constructing such a thing. It has the advantage of night time as well, which wouldn't exist in a classic Dyson Sphere.

Jereath

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Report this Nov. 27 2009, 8:58 am

Quote (caltrek @ Nov. 26 2009, 1:12 pm)
..and instead of a sun at it's center, are you going to put in a triple AAA battery?

yep  ;)

Jereath

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Report this Nov. 27 2009, 8:59 am

Quote (4_of_20 @ Nov. 26 2009, 3:29 pm)
Nah, I'm describing a different kind of Dyson Sphere that is more like a ring (probably more cylindrical) of planets at Earths orbits distance, that humans could spread out onto and harvest more solar energy than they can with one planet.

It's simply an idea I read once proposing a slightly "easier" way around the problem of constructing such a thing. It has the advantage of night time as well, which wouldn't exist in a classic Dyson Sphere.

I could how that would work but then TheCronicalOne could excape from the one

norwegian

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Report this Nov. 27 2009, 8:57 pm

Just wondering if anyone has considered what kind of gravitational stress the sun would have on adyson sphere?  Obviously the equator would have to be spinning around the sun at a much faster rate then the sphere near the poles of the star.  If the dyson sphere did not spin around the star and was stationary, the star is still spinning and might stress the sphere into collapse.

4_of_20

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Report this Nov. 27 2009, 9:09 pm

It does seem a very unstable system... But you'd think when Dyson came up with it, it would have been because he would have solved these gravity related stress problems... you'd think.

I believe gravity on the inner surface of the sphere would in fact be centrifugal force. As a result as you headed closer to the poles, the strength of the gravity would start dropping off, I imagine.

Cynic321

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Report this Nov. 29 2009, 2:57 am

Quote (Jereath @ Nov. 27 2009, 7:59 am)
Quote (4_of_20 @ Nov. 26 2009, 3:29 pm)
Nah, I'm describing a different kind of Dyson Sphere that is more like a ring (probably more cylindrical) of planets at Earths orbits distance, that humans could spread out onto and harvest more solar energy than they can with one planet.

It's simply an idea I read once proposing a slightly "easier" way around the problem of constructing such a thing. It has the advantage of night time as well, which wouldn't exist in a classic Dyson Sphere.

I could how that would work but then TheCronicalOne could excape from the one

Jeez, I hope you keep your word and leave.

That would be grand.

:)

Back OT:

One nice thing about a Dyson sphere-insulation against the cold of space shouldn't pose too much of an issue.

4_of_20

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Report this Nov. 30 2009, 2:11 am

I never thought of that. A classic Dyson Sphere might even be too cold to live on...

4_of_20

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Report this Dec. 07 2009, 9:38 pm

A dryson sphere;

blankenship

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Report this Dec. 10 2009, 7:18 pm

Quote (4_of_20 @ Dec. 06 2009, 10:38 pm)
A dryson sphere;


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