I am going to post something from a Physics site as reference.
https://physics.stackexchange.com/quest ... black-holeA common mistake is often made thinking that a star has to be of a certain size before it can become a black hole. That is a misnomer. There is a required
density, not size.
In layman's terms, essentially what is happening with a star is that the strong nuclear force is battling the weaker gravitational force. The strong nuclear force at the core is pushing out, against and counteracting the gravitational
force thus acting as a “counter-grav” and preventing implosion.
I may be mistaken, but I think the many sinkholes we are experiencing all over the planet is at least in part due to the drilling (fracking) through the earth and prematurely relieving pressures that are in harmony with the counter force that is keeping the planet from imploding from under its own weight.There's no minimum size. There's a minimum density. Stars turn themselves into black holes when they exhaust their fuel and collapse. For that to yield a black hole, they need to start off with around 25 solar masses. If a star starts with enough mass, natural processes cause it to eventually suffer a core collapse which greatly compresses some of its mass. (The rest gets blasted outward into space by the resulting shockwave.) If that explosion's large enough, the mass that's falls inward can reach the critical density for a black hole. (Thus the black hole's mass is less than that of the progenitor star.)
Particle accelerators can (perhaps, according to some versions of theory) create microscopic black holes by manufacturing large subatomic particles. Since the particles are created with high nominal densities, they can be considered black holes. They also tend to be moving near the speed of light, and even though they're "large subatomic particles", they're still expected to have masses much less than, say, a Uranium atom. Since it's the total mass which sets a black hole's radius, this would yield (at worst) nucleus-scale black holes moving near the speed of light. Such black holes would drill through matter, disrupting anything encountered along the way in a nucleus-wide path. Since atoms are really small (and nuclei are even smaller), you could have a few of these going through you and not notice... but they'd technically be black holes. The "disruption" caused by them would basically be a narrow beam of ionizing radiation. Such black holes would also decay very rapidly.
All of the above is to stress that those conditions are only necessary for the formation of black holes to occur
naturally. But physicists have known for quite some time that black holes might be created without all of the excess mass that is associated with a natural formation. As is witnessed in the above passage.
As I have, you might have witnessed that knowledge being demonstrated in various movies and TV shows where a local black hole had been created right inside a laboratory or other very confined area where it had little to no effect on its surroundings as a whole. Though I would not have wanted to breach its very local event horizon.
My point is that a very advanced society who are reaping the rewards of a
Grand Unified Theory and a
Theory of Everything can surely produce a very tame black hole by manipulating the very gravity that creates it, thus controlling the effect it has outside of its local frame of reference.
So, an artificially created black hole would not be at the mercy of the nominal mass that is associated with a natural formation. The effects of an artificially created black hole is being manipulated in a “one size fits all” fashion.
Moreover, I cannot stress enough that almost as soon as the LD enters n-space the black hole will begin to dissipate, certainly because the LD would want it that way, and also due to the fact that when it exits hyper, the LD has been severed from the enormous energies it takes to create and maintain it.
But all of you are correct in pointing out the dangers of the impact a black hole can make materializing in a system. And Thinksmarkedly’s notion of the speed of a black hole is serious. For instance, a huge bowling bowl impacting with our atmosphere carrying an enormous acceleration on reentry should be noticeable. So I am glad he brought that up because it had already occurred to me that an LD would want to tip toe in-system during its transition. An LD’s already paltry acceleration somewhat accommodates that anyway. An LD wouldn't want to carry
any momentum across the hyper wall. Another area where the MA’s technology totally departs from traditional tactics.
In summary, I think it is in error to apply the mechanics of forces of a naturally created black hole with an artificially created one. I think that kind of one track mind would prevent Manticoran scientists from even considering the tech. Fresh eyes are needed.
A departure from all things Manticoran wouldn't hurt either. Enter the Mesan Alignment into the system. Pun intended.
PS
This is Mother's Day weekend and my lack of time prevents my post from being less convoluted. My apologies in advance.
Dunno what happened to the site. I replaced as many posts as I could..
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The artist formerly known as cthia.
Now I can talk in the third person.
