Gawdzilla Sama wrote:What a novel concept.FBM wrote:Gawdzilla Sama wrote:Ayaan just reminded me of one plan, put a large mass near the problem and let gravity alter its course. Again, you need time for this to work.
No.
Nasa chief Charles Bolden's advice on asteroid
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FBM
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Re: Nasa chief Charles Bolden's advice on asteroid
"A philosopher is a blind man in a dark room looking for a black cat that isn't there. A theologian is the man who finds it." ~ H. L. Mencken
"We ain't a sharp species. We kill each other over arguments about what happens when you die, then fail to see the fucking irony in that."
"It is useless for the sheep to pass resolutions in favor of vegetarianism while the wolf remains of a different opinion."
"We ain't a sharp species. We kill each other over arguments about what happens when you die, then fail to see the fucking irony in that."
"It is useless for the sheep to pass resolutions in favor of vegetarianism while the wolf remains of a different opinion."
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Gawdzilla Sama
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Re: Nasa chief Charles Bolden's advice on asteroid
Ein Ubootsoldat wrote:“Ich melde mich ab. Grüssen Sie bitte meine Kameraden.”
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FBM
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Re: Nasa chief Charles Bolden's advice on asteroid
Gawdzilla Sama wrote:
"A philosopher is a blind man in a dark room looking for a black cat that isn't there. A theologian is the man who finds it." ~ H. L. Mencken
"We ain't a sharp species. We kill each other over arguments about what happens when you die, then fail to see the fucking irony in that."
"It is useless for the sheep to pass resolutions in favor of vegetarianism while the wolf remains of a different opinion."
"We ain't a sharp species. We kill each other over arguments about what happens when you die, then fail to see the fucking irony in that."
"It is useless for the sheep to pass resolutions in favor of vegetarianism while the wolf remains of a different opinion."
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Sean Hayden
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Re: Nasa chief Charles Bolden's advice on asteroid
Space lassos, project Asteroid Wrangler.
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FBM
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Re: Nasa chief Charles Bolden's advice on asteroid
Or something like a fish net stretched between two rockets.Sean Hayden wrote:Space lassos, project Asteroid Wrangler.
"A philosopher is a blind man in a dark room looking for a black cat that isn't there. A theologian is the man who finds it." ~ H. L. Mencken
"We ain't a sharp species. We kill each other over arguments about what happens when you die, then fail to see the fucking irony in that."
"It is useless for the sheep to pass resolutions in favor of vegetarianism while the wolf remains of a different opinion."
"We ain't a sharp species. We kill each other over arguments about what happens when you die, then fail to see the fucking irony in that."
"It is useless for the sheep to pass resolutions in favor of vegetarianism while the wolf remains of a different opinion."
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Blind groper
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Re: Nasa chief Charles Bolden's advice on asteroid
Not a spot. They aimed it at a region of space. For the asteroid deflection, you would have to aim a mirror at an unbelievably tiny bit of space. Like pointing a needle at one specific atom, and not being permitted to let it point at the atom next door, and holding that precision for months. Perhaps a sufficiently advanced civilisation might do it, but not ours. Not for a long time.Gawdzilla Sama wrote:They aimed Hubble at a spot in space for 100 friggin' hours.
You would have to start the deflection with the mirror while the asteroid was months away from Earth - meaning tens of millions of miles. The target would be totally invisible except through a very powerful telescope, and the light would be required to specifically impact just one half of that target. I think you underestimate the difficulty.
For every human action, there is a rationalisation and a reason. Only sometimes do they coincide.
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FBM
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Re: Nasa chief Charles Bolden's advice on asteroid
It would only need to be slowed down enough to make it miss that tiny speck of a third stone from the sun. Re-direction isn't required.
"A philosopher is a blind man in a dark room looking for a black cat that isn't there. A theologian is the man who finds it." ~ H. L. Mencken
"We ain't a sharp species. We kill each other over arguments about what happens when you die, then fail to see the fucking irony in that."
"It is useless for the sheep to pass resolutions in favor of vegetarianism while the wolf remains of a different opinion."
"We ain't a sharp species. We kill each other over arguments about what happens when you die, then fail to see the fucking irony in that."
"It is useless for the sheep to pass resolutions in favor of vegetarianism while the wolf remains of a different opinion."
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Blind groper
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Re: Nasa chief Charles Bolden's advice on asteroid
FBM
You are talking of something massing millions of tonnes and travelling at 11 km per second plus. And you suggest that a little pressure from a beam of light might slow it down?????? The inertia involved is too massive and the force from light is too tiny, even over a period of months.
You are talking of something massing millions of tonnes and travelling at 11 km per second plus. And you suggest that a little pressure from a beam of light might slow it down?????? The inertia involved is too massive and the force from light is too tiny, even over a period of months.
For every human action, there is a rationalisation and a reason. Only sometimes do they coincide.
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FBM
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Re: Nasa chief Charles Bolden's advice on asteroid
Just stating that physically re-direction isn't the only answer. It is the easier answer, though. 
"A philosopher is a blind man in a dark room looking for a black cat that isn't there. A theologian is the man who finds it." ~ H. L. Mencken
"We ain't a sharp species. We kill each other over arguments about what happens when you die, then fail to see the fucking irony in that."
"It is useless for the sheep to pass resolutions in favor of vegetarianism while the wolf remains of a different opinion."
"We ain't a sharp species. We kill each other over arguments about what happens when you die, then fail to see the fucking irony in that."
"It is useless for the sheep to pass resolutions in favor of vegetarianism while the wolf remains of a different opinion."
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FBM
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Re: Nasa chief Charles Bolden's advice on asteroid
Or we could just speed up the earth. 
"A philosopher is a blind man in a dark room looking for a black cat that isn't there. A theologian is the man who finds it." ~ H. L. Mencken
"We ain't a sharp species. We kill each other over arguments about what happens when you die, then fail to see the fucking irony in that."
"It is useless for the sheep to pass resolutions in favor of vegetarianism while the wolf remains of a different opinion."
"We ain't a sharp species. We kill each other over arguments about what happens when you die, then fail to see the fucking irony in that."
"It is useless for the sheep to pass resolutions in favor of vegetarianism while the wolf remains of a different opinion."
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Ayaan
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Re: Nasa chief Charles Bolden's advice on asteroid
I don't know. Solar wind (stream of charged particles released from the upper atmosphere of the Sun) have been proposed as a power source for space expeditions. Light is just another form of energy - look at what we can do with lasers. It's not like we have to stop the thing dead in it's tracks, just nudge it enough to divert it away from a collision course with our planet.Blind groper wrote:FBM
You are talking of something massing millions of tonnes and travelling at 11 km per second plus. And you suggest that a little pressure from a beam of light might slow it down?????? The inertia involved is too massive and the force from light is too tiny, even over a period of months.
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Blind groper
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Re: Nasa chief Charles Bolden's advice on asteroid
Ayaan
In terms of energy, it would be easier to divert its course slightly, rather than slow it down. The momentum to be overcome is awesome!
Solar winds, of course, have vastly more energy than beams of light.
In terms of energy, it would be easier to divert its course slightly, rather than slow it down. The momentum to be overcome is awesome!
Solar winds, of course, have vastly more energy than beams of light.
For every human action, there is a rationalisation and a reason. Only sometimes do they coincide.
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JimC
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Re: Nasa chief Charles Bolden's advice on asteroid
The only light-based possibility I can see would be tethering a huge, light-weight foil-composite light-sail to an asteroid, and using a space based laser to push the light sail, which then applies a force to the asteroid.Blind groper wrote:Ayaan
In terms of energy, it would be easier to divert its course slightly, rather than slow it down. The momentum to be overcome is awesome!
Solar winds, of course, have vastly more energy than beams of light.
We are talking many, many square kilometres to get a large enough change in momentum. Per photon of reflected light, the delta v is minute...
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FBM
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Re: Nasa chief Charles Bolden's advice on asteroid
Good idea, that laser.
"A philosopher is a blind man in a dark room looking for a black cat that isn't there. A theologian is the man who finds it." ~ H. L. Mencken
"We ain't a sharp species. We kill each other over arguments about what happens when you die, then fail to see the fucking irony in that."
"It is useless for the sheep to pass resolutions in favor of vegetarianism while the wolf remains of a different opinion."
"We ain't a sharp species. We kill each other over arguments about what happens when you die, then fail to see the fucking irony in that."
"It is useless for the sheep to pass resolutions in favor of vegetarianism while the wolf remains of a different opinion."
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JimC
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Re: Nasa chief Charles Bolden's advice on asteroid
Why hasn't the UN appointed me as a resident genius on an immense salary, already!FBM wrote:Good idea, that laser.
Nurse, where the fuck's my cardigan?
And my gin!
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