How can you create a black hole?

Answer 1

no you cannot(if i really give an answer I will get another one of those "V" things)

Answer 2

Nice question, tallat.

You have to expend the energy required to compress an object to the point that its radius is smaller than its so-called Schwarzschild radius (sr). Here's the formula for sr:

2Gm
------- = sr (Schwarzschild radius in meters))
c^2

Where G is the gravitational constant (6.67259 x 10^-11), m is the mass in question, and c = speed of light. So, how about an example or two. A 440 Kg man would need to be squeezed down to a sphere with a radius of 6.5 x 10^-25 meters. A proton's radius is about 1 x 10^-15, so we are talking about a lot smaller than a proton. It would take a lot of energy to accomplish that!

For the earth sr = 1 mm say.

It should be clear that the best way to get a black hole is to let gravity do all the work, and that requires a lot of mass. The sr for 10 solar masses (say) = 148 Km more or less. A supernova explosion produces the energy to achieve this.

Which brings us to the answer to your question. Until we reach the stage in technology (if ever) that we can trigger a supernova, the energy needed to create a black hole is probably beyond us.

HTH

Charles

Answer 3

Whilst it is possible to create a black hole, you really wouldn't want to.
The energy requirements along with the fuel are ....... rather a lot!
Once you have created a black hole, how would you contain it?
If you managed to create a microscopic version, once you and your scientific team had been sucked into a hole the size of a full stop, it would not stop with your lab.
Or for that matter, your country, or the planet!
It would slowly grow as it consumed more and more. Eventually, once our Solar system had gone, it would consume the rest of our Milky Way galaxy, in direct competition with the large black hole at the centre of our galaxy.
BOOOM!
In fact, that would be rather an understatement!


:~}

Answer 4

Actually the smallest possible mass that a black hole can have is a Planck mass, which is roughly equal to one hundred-thousandth of a gram, its size at that mass is a Plank length, roughly 10^-33 centimeters, and would only last for about a Planck length of time, roughly 10^-42 seconds. Ah the beauty of quantum physics comes into view! The energy required for this is only about the same as a full tank of gas, but all that energy has to be focused into two single subatomic particles that collide. Basically it would take a particle accelerator several light years long in order to work, which probably wont happen...we have created collisions in particle accelerators that mimic some properties of black holes, note i said some properites, they are not actual black holes...

Answer 5

Black holes form when an object reaches a certain density. You can create a black hole by taking something and compressing it into a tiny volume to increase its density, or you can keep density constant and add more mass (or some combination of the two). The point is to get a lot of "stuff" into a small enough space so that its gravitational pull increases to a high enough strength to become a black hole.

Answer 6

All answers so far are wrong or at least assuming there's only one way to make a gravitationally collapsed object. You can create a black hole - yep, right here on Earth in fact.

A microscopic one - you don't always need huge amounts of mass to make a black hole - you may be aware that in Einstein's special theory of relativity nothing can accelerate up to the speed of light because its mass would become infinite - well if you accelerate anything fast enough - including a single proton, it will collapse in on itself and form a tiny black hole

There was a particle accelerator in europe which was protested against because they thought black holes would be created thus endangering all life on earth - however Stephen Hawking's calculations prove that tiny blackholes would 'evaporate' almost instantly and would not be able to suck in other particles let alone the entire planet. It goes online this year.

http://www.sciencenews.org/articles/20020323/bob9.asp

Answer 7

Physicists at CERN (Center for European Nuclear Research) have created black holes using matter and antimatter. When matter and antimatter meet they anhialate each other. But there is a slight delay from them being created and anhialated. This delay creates a tiny black hole which is not even remotely dangerous. And then it doesn't exist anymore. Hope this Helps

Answer 8

Use gravity to condense say an assembly of neutrons so that their mutually orthogonal wave functions overlap. The probability function diminishes to zero. Use a particle collider to achieve the same effect with either electrons, protons or other charged species.
Or use a (large) magnetic field to force the overlap of two or more electrons energy levels (quantum numbers) something akin to Zeeman effect

Answer 9

I think that is impossible as no one really knows what a black hole consists of, or what is in it or where it goes. We just suspect that we would be exterminated if we went through one. It will be a very brave astronaut who willing is the first to try to fly through one.

Answer 10

Ask the Chancellor of the Exchequer. He made one to pour our taxes down never to be seen again!
RoyS

Answer 11

humans cant, but they create when a star dies it heats up and becomes a red giant, then it colapses in its own gravity, and later it becomes so dense that every thing that passes near it gets sucked into it, including light, whitch is why it is black.
one day this will happen to our own sun.