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/sci/ - Science & Math


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9763078 No.9763078 [Reply] [Original]

>>
Anonymous 05/23/18(Wed)19:17:20 No.59909052▶>>59909090 >>59909129
Is it in any way theoretically possible to move a star, Dyson Sphere or otherwise?
>>
Anonymous 05/23/18(Wed)19:19:33 No.59909090▶
>>59909052
yeah, put a dyson sphere over a star, and then open a panel on one side. the escaping jet into space will act as thrust

Is this fucking possible, or is /tg/ just retarded?

Also, talk about dyson sheres, dyson swarms, megastructures, all that good shit.

>> No.9763086

>>9763078
Here was another answer:

>>59909052
Yep, two ways actually. You can build a Schkadov thruster which is basically half a Dyson Sphere. Shell blocks one half of a star and it accelerates towards the shell which gets pushed from it by light pressure. Second option is to use star lifting to basically turn the star into a giant plasma thruster by squeezing it really hard with magnets. First one is slower but more efficient and you don't lose mass of a star as fast in the process but second option has higher thrust and thus doesn't take millions of years to accelerate.

>> No.9763107
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9763107

Any star is already in motion, relative to a twin, or the center of a galaxy, etc. so any movement of a star would be better accomplished by a cascading chain reaction of gravity assists that play off of the star's initial velocity relative to wherever it is you are going, or would like to avoid going. Here's an example.

Spaceships that lug mass from, say, asteroids would maintain a close orbit that alters a larger planet's orbit, and this planet's orbit would slowly decay into a carefully planned slingshot orbit which sends it into the star and then flying out of the galaxy, but also alters the star's velocity.

This would be incredibly inefficient, due to the sheer mass lost to the star system in the exchange, but it would be the easiest for a space-faring civilization to physically accomplish.
The star wouldn't move much, but it would certainly be enough to alter the outcome of a potential interstellar collision that would otherwise have been inevitable.

>> No.9763434
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9763434

was this thread moved?

>> No.9763438

>>9763086
> light pressure