B Creating Artificial Black Hole: Force Requirements

[Devin-M]

In a hypothetical deep space experiment in the distant future with appropriate safety precautions in place, how much force/power/energy would be required to create an artificial 1000kg black hole? I haven’t the faintest clue & this isn’t for homework. Where would I even begin looking for an answer?

 

[PeterDonis]

Where would I even begin looking for an answer?

Before doing that, you need to make the question well-defined. How is this proposed experiment going to create a black hole?

To help clarify your thinking, you might want to look up literature on primordial black holes.

 

[Devin-M]

I was assuming some type of implosion would be involved acting on a spherical mass.

 

[PeterDonis]

I was assuming some type of implosion would be involved acting on a spherical mass.

How is the implosion created?

(In the case of primordial black holes, the implosion would be created by large enough density fluctuations in the early universe.)

 

[Vanadium 50]

What Peter is likely getting at is that the black hole is smaller than an atom. How do you use atoms to squeeze it if it's smaller than one?

 

[PeroK]

In a hypothetical deep space experiment in the distant future with appropriate safety precautions in place, how much force/power/energy would be required to create an artificial 1000kg black hole? I haven’t the faintest clue & this isn’t for homework. Where would I even begin looking for an answer?

You could start with a "hot wheels" car crusher, available on Amazon for £141.36:

https://www.amazon.co.uk/dp/B00158SH3I/

 

[Ibix]

Don't we also have the problem that for such a small black hole ($R_S\approx 10^{-24}\mathrm{m}$) you'd need quantum gravity to describe the collapse process, anyway? Or are we just assuming classical gravity is fine for the sake of argument?

 

[Vanadium 50]

There's lots of problems. Such a black hole will evaporate in 10^-18 seconds, so whether it "exists" or not is a subject for debate.

The question it reminds me of "Can God create a stone so heavy he can't lift it?"

 

[Devin-M]

How much mass does it need to have where if you throw a big enough cloud of particles at it, it persists?

 

[Vanadium 50]

How long is a piece of string?

 

[PeterDonis]

How much mass does it need to have where if you throw a big enough cloud of particles at it, it persists?

I'm not sure what you mean by this, but if you mean, is there a minimum possible mass for a black hole, classical GR, which is the subject matter in this particular forum, does not have any such limit.

 

[PeterDonis]

The OP question is too vague to be answered and has not been clarified. Thread closed.