4 ms·

I am interested in knowing your reasoning on how/why this will happen? (would go straight through the planet + would register as something like a very high ener

I am interested in knowing your reasoning on how/why this will happen? (would go straight through the planet + would register as something like a very high energy cosmic ray)

vbarrielle 6y ago
I suppose it has to do with the Schwarzschild radius of such a black hole being really small, I guess it would be something like 10^-8m according to https://en.wikipedia.org/wiki/Schwarzschild_radius https://en.wikipedia.org/wiki/Schwarzschild_radius which means almost nothing would fall inside its event horizon, and it probably would not collide with anything. However, the gravitational pull of an asteroid would not be negligible, so I guess it would have a big impact pulling things towards it.
ben_w 6y ago
I can answer the first question but not the second. The Schwarzschild radius of Vesta is 396.1 nm [0]; which means it a black hole with that mass would intersect 6.281 cm^3 [1] of material if it went through the center of the Earth. I have no idea why it might look like a cosmic ray. The surface gravity would be absolutely insane, so I would naïvely expect something like this look like an earthquake. [2] [0] http://www.wolframalpha.com/input/?i=event%20Horizon%20radius%20vesta http://www.wolframalpha.com/input/?i=event%20Horizon%20radiu... [1] http://www.wolframalpha.com/input/?i=%28396.1nm%29%5E2%20%2A%20pi%20%2A%20diameter%20of%20Earth http://www.wolframalpha.com/input/?i=%28396.1nm%29%5E2%20%2A... [2] http://www.wolframalpha.com/input/?i=gravity%202.67%C3%9710%5E20%20kg%20radius%20396.1%20nm http://www.wolframalpha.com/input/?i=gravity%202.67%C3%9710%...
- Filligree 6y ago
  It wouldn't look like a cosmic ray to a physicist; that was a simplification. It would leave a trail of wreckage behind it that, on a micro-scale, would look somewhat similar to that of a super-high-energy cosmic ray. A hole that large is large enough to swallow large numbers of atoms, and wrench the remaining ones out of position; that would look not too different from the damage you'd get if you sat in the way of a particle accelerator, at least very close to the path of the hole. I'm not sure what would happen to you if one fell straight through you, but I suspect you'd be fine. (Unlike the particle accelerator, there wouldn't be much secondary radiation.) Don't quote me on that, though. And don't try it at home, either.
  - Balgair 6y ago
    >And don't try it at home, either. If anyone out there does, in fact, manage to try this at home, please send a letter about it to the following address: P.O. Box 5232, SE-102 45 Stockholm, Sweden Street address: Sturegatan 14, Stockholm
    - wil421 6y ago
      There is a former Soviet Physicist who took a particle beam to the face. https://en.m.wikipedia.org/wiki/Anatoli_Bugorski https://en.m.wikipedia.org/wiki/Anatoli_Bugorski
      - holler 6y ago
        wow! fascinating read... "Bugorski understood the severity of what had happened, but continued working on the malfunctioning equipment, and initially opted not to tell anyone what had happened." "The left half of Bugorski's face swelled up beyond recognition and, over the next several days, the skin started to peel, revealing the path that the proton beam (moving near the speed of light) had burned through parts of his face, his bone and the brain tissue underneath.[3] As it was believed that he had received far in excess of a fatal dose of radiation, Bugorski was taken to a clinic in Moscow where the doctors could observe his expected demise. However, Bugorski survived, completed his PhD, and continued working as a particle physicist.[4] There was virtually no damage to his intellectual capacity, but the fatigue of mental work increased markedly.[2] Bugorski completely lost hearing in the left ear, replaced by a form of tinnitus.[5] The left half of his face was paralyzed due to the destruction of nerves.[1] He was able to function well, excepting occasional complex partial seizures and rare tonic-clonic seizures."
        wil421 6y ago
        The left side of his face did not age.
        ben_w 6y ago

I am interested in knowing your reasoning on how/why this will happen? (would go straight through the planet + would register as something like a very high energy cosmic ray)

vbarrielle 6y ago

I suppose it has to do with the Schwarzschild radius of such a black hole being really small, I guess it would be something like 10^-8m according to https://en.wikipedia.org/wiki/Schwarzschild_radius https://en.wikipedia.org/wiki/Schwarzschild_radius which means almost nothing would fall inside its event horizon, and it probably would not collide with anything. However, the gravitational pull of an asteroid would not be negligible, so I guess it would have a big impact pulling things towards it.

ben_w 6y ago

I can answer the first question but not the second. The Schwarzschild radius of Vesta is 396.1 nm [0]; which means it a black hole with that mass would intersect 6.281 cm^3 [1] of material if it went through the center of the Earth. I have no idea why it might look like a cosmic ray. The surface gravity would be absolutely insane, so I would naïvely expect something like this look like an earthquake. [2] [0] http://www.wolframalpha.com/input/?i=event%20Horizon%20radius%20vesta http://www.wolframalpha.com/input/?i=event%20Horizon%20radiu... [1] http://www.wolframalpha.com/input/?i=%28396.1nm%29%5E2%20%2A%20pi%20%2A%20diameter%20of%20Earth http://www.wolframalpha.com/input/?i=%28396.1nm%29%5E2%20%2A... [2] http://www.wolframalpha.com/input/?i=gravity%202.67%C3%9710%5E20%20kg%20radius%20396.1%20nm http://www.wolframalpha.com/input/?i=gravity%202.67%C3%9710%...

Filligree 6y ago
It wouldn't look like a cosmic ray to a physicist; that was a simplification. It would leave a trail of wreckage behind it that, on a micro-scale, would look somewhat similar to that of a super-high-energy cosmic ray. A hole that large is large enough to swallow large numbers of atoms, and wrench the remaining ones out of position; that would look not too different from the damage you'd get if you sat in the way of a particle accelerator, at least very close to the path of the hole. I'm not sure what would happen to you if one fell straight through you, but I suspect you'd be fine. (Unlike the particle accelerator, there wouldn't be much secondary radiation.) Don't quote me on that, though. And don't try it at home, either.
- Balgair 6y ago
  >And don't try it at home, either. If anyone out there does, in fact, manage to try this at home, please send a letter about it to the following address: P.O. Box 5232, SE-102 45 Stockholm, Sweden Street address: Sturegatan 14, Stockholm
  - wil421 6y ago
    There is a former Soviet Physicist who took a particle beam to the face. https://en.m.wikipedia.org/wiki/Anatoli_Bugorski https://en.m.wikipedia.org/wiki/Anatoli_Bugorski
    - holler 6y ago
      wow! fascinating read... "Bugorski understood the severity of what had happened, but continued working on the malfunctioning equipment, and initially opted not to tell anyone what had happened." "The left half of Bugorski's face swelled up beyond recognition and, over the next several days, the skin started to peel, revealing the path that the proton beam (moving near the speed of light) had burned through parts of his face, his bone and the brain tissue underneath.[3] As it was believed that he had received far in excess of a fatal dose of radiation, Bugorski was taken to a clinic in Moscow where the doctors could observe his expected demise. However, Bugorski survived, completed his PhD, and continued working as a particle physicist.[4] There was virtually no damage to his intellectual capacity, but the fatigue of mental work increased markedly.[2] Bugorski completely lost hearing in the left ear, replaced by a form of tinnitus.[5] The left half of his face was paralyzed due to the destruction of nerves.[1] He was able to function well, excepting occasional complex partial seizures and rare tonic-clonic seizures."
      - wil421 6y ago
        The left side of his face did not age.
        ben_w 6y ago