General > General Technical Chat
Betelgeuse the star
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iMo:
It is 700ly off, problems for us start at 50ly and less, afaik..
From April up it moves closer to Sun, we will see nothing.
Alex Eisenhut:

--- Quote from: Gyro on January 26, 2020, 11:20:55 am ---Now Larry Niven's Ringworld (or a Dyson ring) I do get. You can spin it at a sensible speed to generate 'gravity' and retan the atmosphere between high rim walls. Of course you still have to worry about maintaining stability etc. but at least you have somewhere to put your population. And people won't blunder into you in the dark.

--- End quote ---

Well sure, except for the non-existent materials and need for stabilizers... But you put enough Protectors on the job I guess they'll find solutions.
CatalinaWOW:
Any civilization that could put a shell around a star could solve trivial problems like this.  Keeping the atmosphere in just means making two shells two hundred kilometers apart or so.  And then find enough gas to fill the space.  Or maybe just make an earth sized bump on a stick with spin bearings to let it turn once every day or so.  There would be room on the inside of the sphere to put many thousand such bumps with PLENTY of elbow room between them.

Don't have to worry about us humans pulling off something like that for a long, long time.  Even if we do hit the "singularity".
thinkfat:

--- Quote from: Alex Eisenhut on January 28, 2020, 08:16:09 am ---
--- Quote from: Gyro on January 26, 2020, 11:20:55 am ---Now Larry Niven's Ringworld (or a Dyson ring) I do get. You can spin it at a sensible speed to generate 'gravity' and retan the atmosphere between high rim walls. Of course you still have to worry about maintaining stability etc. but at least you have somewhere to put your population. And people won't blunder into you in the dark.

--- End quote ---

Well sure, except for the non-existent materials and need for stabilizers... But you put enough Protectors on the job I guess they'll find solutions.

--- End quote ---

I seem to remember that in "Ringworld: Engineers" it was found that the Ringworld was unstable because natives stupidly dismantled the attitude jets on the rim walls, throwing the Protectors into a frenzy to save the remaining inhabitants.
rdl:
Now you guys have done it. I'm gonna have to drag all my old Niven books out of storage and read 'em again.
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