Current Events > Could we theoretically "feed" the sun to refuel it forever?

(+) Yeah! (+)

Tyranthraxus posted...

You can also just pack on 4 feet of lead shielding on a ship to block radiation theoretically. Once it's in space it doesn't weigh anything.

And that lead shielding is going to be worn away over time due to the impacts with interstellar debris. Which will then have to be repaired or replaced. The parts to repair or replace it would need to be stored somewhere, taking up extra space and thus requiring a larger ship which would, in turn, require more shielding. Putting lead on the outside of your ship doesn't solve anything, even theoretically. It's a non-starter in terms of radiation solutions. New shielding technologies need to be developed.

I think you're getting confused. No new tech is required to just build a ship that can simulate appropriate gravity. New methods for construction are needed, of course. And for getting the sheer amount of mass into space where it can be put together. But that's not the same thing as developing entirely new theoretical solutions that's required to deal with the radiation issue.
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Zikten posted...

ProbablyaCat posted...

and leave Earth behind.

we don't have to. I have said for years that I think someday we will have the ability to move the earth. why would we abandon it if we don't have to? in the distant future, earth will be a sacred planet, our ancestral ancient homeworld. and if all the humans have left earth even by then, we will return and rescue it from the sun. and move it to a new solar system

https://www.youtube.com/watch?v=ubePTrs2VJc" data-time="

We should feed the sun!

We should call my nephew!

We should colonize other planets!

We should take Earth... And push it somewhere else!

Aristoph posted...

And that lead shielding is going to be worn away over time due to the impacts with interstellar debris

And a rotation mechanism isn't? If it uses an axle what about friction? What about just generally losing momentum from people inside moving around? What do you do when people want to leave / enter? These questions all have interesting theoretical solutions but nothing has been solved.

This is like saying we've solved faster than light travel because the math behind the alcubierre drive works.
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Zikten posted...

ProbablyaCat posted...

and leave Earth behind.

we don't have to. I have said for years that I think someday we will have the ability to move the earth. why would we abandon it if we don't have to? in the distant future, earth will be a sacred planet, our ancestral ancient homeworld. and if all the humans have left earth even by then, we will return and rescue it from the sun. and move it to a new solar system

LMFAO

Rika_Furude posted...

Duncanwii posted...

Rika_Furude posted...

Humans wont even survive the next 1000 years or so. The sun burning out is absolutely irrelevant to the human race.

I don't think you should be so sure of that.

Why not? And im gonna lol if you say "someone will figure out a magic solution"

Someone will figure out a scientific solution, duh
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Maybe we could simply become the sun
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Tyranthraxus posted...

And a rotation mechanism isn't? If it uses an axle what about friction? What about just generally losing momentum from people inside moving around? What do you do when people want to leave / enter? These questions all have interesting theoretical solutions but nothing has been solved.

There doesn't have to be any moving parts to rotate a ring ship. The rotation doesn't come from a motor like a car's tires. Don't be stupid. Thrusters on the outer circumference can spin it up and adjust the rotational speed as needed. The entrance/exit to these types of ships is generally accepted to be in the middle due to the lower gravity, which you access from the ring by traveling up through the spokes.

All of those questions have been solved. Just because you've never looked into it doesn't mean nobody else has. Maybe try doing a bit of research next time. You clearly have no idea what you're talking about, so I'm just gonna leave this here for you and move on:
https://www.youtube.com/channel/UCZFipeZtQM5CKUjx6grh54g

Science and Futurism with Isaac Arthur. Think of it like "advanced space concepts for dummies." Great channel with a lot of intriguing concepts and thoughts, dumbed down enough for most people to follow but with enough scientific knowledge and backing to be a good starting point for digging into the more difficult concepts involved in spaceflight and colonization.
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Aristoph posted...

There doesn't have to be any moving parts to rotate a ring ship. The rotation doesn't come from a motor like a car's tires. Don't be stupid. Thrusters on the outer circumference can spin it up and adjust the rotational speed as needed. The entrance/exit to these types of ships is generally accepted to be in the middle due to the lower gravity, which you access from the ring by traveling up through the spokes.

I didn't say anything about moving parts.
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You seem to know what youre talking about, Aristoph. Its interesting to think about space travel and its requirements.
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Tyranthraxus posted...

I didn't say anything about moving parts.

Tyranthraxus posted...

If it uses an axle what about friction?

Seriously, I'm done now. You're embarrassing yourself.
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0AbsoluteZero0 posted...

You seem to know what youre talking about, Aristoph. Its interesting to think about space travel and its requirements.

This kind of stuff has always been fascinating to me. Science fiction is great, but my favorite part is looking into the concepts you see in popular sci-fi and seeing how much of it might actually be feasible. It's pretty surprising how much of it actually isn't as far off from reality as you might expect. Just a few small tweaks here and there can often bring some pretty crazy concepts into the realm of possibility, if unlikely to happen any time soon.
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What I want to know is if we can find a Sun that gives us all superpowers.
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it's not about refueling it forever, but the movie Sunshine deals with something along those lines
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