If this were true, could the Earth ever collide with one of these asteroid-sized primordial black holes and what would happen? In theory would we even be able to detect the imminent rendezvous?
An asteroid-mass black hole would be too small to interact much. It would go straight through the planet, and couldn't possibly capture enough mass to be e.g. captured, but it would register as something like a very high energy cosmic ray.
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)
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]
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.
"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."
I very much hope that, by the time someone can do this at home, the home in question is no closer than geostationary orbit.
Unlike a black hole falling in from deep space, one made on the surface of the Earth will definitely remain inside the planet, making one pass through the core every 42 minutes.
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 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.
says at one earth's radius away that it has an escape velocity of 1447.5 km/s (kilometers per second), so yeah I think that will either destroy part of Earth or completely consume it, depending on how fast it's passing though.
Nothing on this video is like the black holes people are discussing here.
First, they are big enough to be stable, they don't explosively evaporate in an instant. Second, they are much, much smaller than the large one on the video.
