How can a Black Hole absorb everything yet dispel nothing - ever?

Answer 1

Black holes do give out something - they give out Hawking radiation (named after Stephen Hawkings). All over space, particles and antiparticles pop into existance for tiny fractions of time, then come together again and disappear out of existence (this is something predicted by the uncertainty principle). These particles are called 'virtual particles' because they hardly exist at all - only in pairs and for a tiny amount of time.

You can imagine a pair of virtual particles popping into existance right on the edge of the place in space where everything falls in to a black hole. One of the particles will then fall in to the black hole, but the other one could be left wandering around without its anti-partner. It can't 'come together' with its anti-partner, so it is forced into existence as a real particle. You probably know about energy and matter being equal (Einstein's e=mc2 equation). To make even something as small as a particle turn from a virtual one to a real one with mass takes a lot of energy, and this energy comes from the black hole - ie, a little bit of energy has been bled away. Slowly, slowly, slowly over millions of years the energy of a black hole gets bled away like this, and the black hole gets smaller until it disappears.

Answer 2

While the idea of an object with gravity strong enough to prevent light from escaping was proposed in the 18th century, black holes as presently understood are described by Einstein's theory of general relativity, developed in 1916. This theory predicts that when a large enough amount of mass is present within a sufficiently small region of space, all paths through space are warped inwards towards the center of the volume. When an object is compressed enough for this to occur, collapse is unavoidable (it would take infinite strength to resist collapsing into a black hole). When an object passes within the event horizon at the boundary of the black hole, it is lost forever (it would take an infinite amount of effort for an object to climb out from inside the hole). Although the object would be reduced to a singularity, the information it carries is not lost

Answer 3

Because it has the power to pull matter in, but there is not enough force to dispel anything (because the force pulling things in is far greater). Therefore it just sucks in matter for ever, growing, or combining with other black holes to create a super black hole, still pulling everything in, and not expelling everything because the gravitational force is too strong. (as in why don't we fly off the earth - the force pulling us towards the center is stronger than that pushing us away - the same is true of black holes).

Answer 4

A black hole is an object with a gravitational field so powerful that a region of space becomes cut off from the rest of the universe – no matter or radiation, including visible light, that has entered the region can ever escape. The lack of escaping electromagnetic radiation renders the inside of black holes (beyond the event horizon) invisible, hence the name.

Answer 5

It continues to absorb matter for millions of years, but eventually it will fill, like a sponge, then comes the big bang, and the whole process is repeated.

Answer 6

because of the fact they simply soak up each thing interior of a undeniable radius of their journey horizon. issues exterior of that area are risk-free from the black hollow. There are multitudes of stars that orbit exterior the possibility zone. this is those stars that orbit around the black area of the black hollow that provides scientists the clue of the presence of the black hollow.

Answer 7

answer is so easy because the density is so high and the gravitational also.black hole is the residue of huge star.

Answer 8

dammit, wibbly hit the nail on the head. the do exert a plume of highly charged radiation.

Answer 9

it does not take in gamma rays. they are the only thing that can escape a black hole.

Answer 10

You can drive yourself mad thinking about this!! You could end up in the nearest mental hospital!!! The longer you think about it the wierder it gets!!