black holes are made of what type of materials?

Answer 1

I'd think it would be made of all materials since it grabs everything.
I'd also think it changes the composition of everything also under the strong gravitational pull and crushing pressures on the surface.

Answer 2

It wasn't until 1915 when Albert Einstein published his theory of General Relativity that the theory of black holes really took off. The first real study into the phenomenon was undertaken by Karl Schwarzchild in 1916 who derived an equation for the Schwarzchild Radius of a black hole (Rs = GM / c^2, where Rs is the Schwarzchild radius, G is Newton's gravitational constant, M is the mass of the blackhole and c the speed of light).

To form a black hole matter collapses under its own gravitational field, such as in the death of a large star. If the matter in question is massive enough then its gravitational attraction will be so great that it will overcome all of the other forces trying to resist the collapse and the matter will continue to shrink until it becomes no more than a point, known as a singularity. This point will have and infinite density and will be infinitely small. The effect on space time will be such that it is distorted to the point where light can no longer escape from the black hole, hence the name black. At singularities the known laws of physics break down which is why so much time and effort is spent examining these strange features of our universe.

The Schwarzchild radius describes a property of black holes known as the event horizon. This is the point between space where light can escape from the black hole's gravitational field and the space where it cannot. Although the singularity inside the black hole is infinitely small the black hole would appear to be the size of its event horizon, and to all effects is.

When matter falls into the event horizon it becomes isolated from the rest of space and time and has, effectively, disappeared from the universe that we exist in. Once inside the black hole the matter will be torn apart into its smallest subatomic components which will be stretched and squeezed until they to become part of the singularity and increase the radius of the black hole accordingly.

Interestingly enough it has now been shown, by one Stephen Hawking, that the matter inside a black hole is not completely isolated from the rest of the universe and that given a sufficient length of time black holes will gradually dissolve by radiating away the energy of the matter that they contain.

Answer 3

There is nothing special about the material they're made of, just gases, liquid metals etc. But the problem is that their radius(heavenly bodies are supposed to be spherical) decreases many times while the mass remains same.
The velocity required by a body to break the gravitational force of another body is given by the formula:
V=(2GM/r)^1/2
here
V=velocity required
G=universal gravitational constant
M=mass of the heavenly body which formed the black hole.
r=radius of that heavenly body.
when V becomes =c(velocity of light) nothing can escape from the black hole

Answer 4

Well, I suppose theoretically everything would be broken into elementary particles, so you'd end up with electrons, photons, and quarks for the most part, I suppose. Of course, it's kind of a moot point because if you're outside the black hole, you have no clue what's fallen into it (except for anything which you have watched fall into it, but even then whatever you see fall in will be ripped to shreds). The contents of a black hole only have three (I believe) discernable properties to someone observing from outside it: its mass, its charge, and its angular momentum (e.g. how fast it's spinning).

Answer 5

By definittion, black holes are made of a matter so dense that even a small teaspoon of such matter would weight hundreds of tons (1 ton=1000 Kgs). It is caused by the decay of a star as it shrinks into matter so dense that even light cannot escape its gravity and thus bends inwards, hence they are called black holes since even light cannot escape the massive gravity due to the extremely dense matter. A decaying star implodes on itself and starts the shriking process to create a black hole.

Answer 6

Black holes are theoretical entities They seem to be very logical, but they cannot survive a very objective and critical scrutiny.
They supply a solution of what to do with a maxxed out neutron star.
Black holes are accepted at face value but they do not and cannot exist!

Answer 7

Black holes have no properties other than mass and spin, so you can't say that they are made of anything in particular. Everything inside the event horizon is effectively outside our universe, in that it can't interact with anything outside the event horizon. Therefore, it is impossible to describe the "contents" of a black hole in any way.

Answer 8

"MATERIALS"?? Black holes are not made out of "materials". They don't have physical properties as you think of in "materials".
Black Holes are more like FORCES, than MATERIALS.

Answer 9

Mostly black material

Answer 10

Albert Einstein stated this theory of existence of Black Hole, but now it is proposed that Black Hole doesn't even exist and it has been proved by an Indian scientist and it has been approved by Astronomical department.