some thing about "B L A C K H O L E "?????

Question

What do you know about it?

Answer 1

A black hole is an object predicted by general relativity with a gravitational field so strong that nothing can escape it — not even light.

A black hole is defined to be a region of space-time where escape to the outside universe is impossible. The boundary of this region is a surface called the event horizon. This surface is a set of points (not an actual substance) in spacetime. Nothing can move from inside the event horizon to the outside, even briefly.

The existence of black holes in the universe is well supported by astronomical observation, particularly from studying X-ray emission from X-ray binaries and active galactic nuclei. It has also been hypothesized that black holes radiate energy due to quantum mechanical effects known as Hawking radiation.

Answer 2

Well those answers were OK. Butt the mater of it is that it is the body part that a lot of people call it is the Anal or slang is the A S S hole it is black and can suck air into it and pushes out other things, that can't be mention at this time. some people even call them by name when someone is angry with another... So then there are those called the Smart A S S holes, butt the scientific use for it is out of this world it is actually in outer-space and it is kinda like are body in some way it is made of gasses...... we have natural gas and the kind in space is chemicals all though some can be known to let off some pretty badly gasses into space and some would even swear that its pretty toxic butt all in all you my friend have asked a question that could lead to all kinds of definitions and that is why some call it a dictionary for those who truly want the true meaning of it so good luck on that and I hope I was some assistance butt that is far is that goes

Answer 3

female names are on the left, and boys are on the right. A - Abbi and Austin B - Blake and Benjamin C - Charlotte and Cole D - Darcy and Daniel E - Elisabeth and Evan F - faith and Finn G - Gracyenn (Grayson) and Griffin H - Hadleigh and Hudson I - Isabelle and Isaac J - Jocelyn and Jaxon ok - Kora and Keith L - Lindsey and Logan M - Mollie and Maddox N - Norah and Noah O - Olivia and Oliver P - Parker and Pierce Q - Quinn and Quentin R - Reese and Ryder S - Scarlett and Samuel T - Taryn and Thomas U - Udele and Ulysses (I hate those names...) V - Vaness and Victor (I also hate all V names...) W - Whitney and William "Will" X - Xenia and Xander Y - Yale (personality in a e book I examine) and youthful Z - Zoey and Zachary

Answer 4

Black holes are thought to form from stars or other massive objects if and when they collapse from their own gravity to form an object whose density is infinite: in other words, a singularity. During most of a star's lifetime, nuclear fusion in the core generates electromagnetic radiation, including photons, the particles of light. This radiation exerts an outward pressure that exactly balances the inward pull of gravity caused by the star's mass.

As the nuclear fuel is exhausted, the outward forces of radiation diminish, allowing the gravitation to compress the star inward. The contraction of the core causes its temperature to rise and allows remaining nuclear material to be used as fuel. The star is saved from further collapse -- but only for a while.

Eventually, all possible nuclear fuel is used up and the core collapses. How far it collapses, into what kind of object, and at what rate, is determined by the star's final mass and the remaining outward pressure that the burnt-up nuclear residue (largely iron) can muster. If the star is sufficiently massive or compressible, it may collapse to a black hole. If it is less massive or made of stiffer material, its fate is different: it may become a white dwarf or a neutron star.


Einstein's general theory of relativity describes gravity as a curvature of spacetime caused by the presence of matter. If the curvature is fairly weak, Newton's laws of gravity can explain most of what is observed. For example, the regular motions of the planets. Very massive or dense objects generate much stronger gravity. The most compact objects imaginable are predicted by General Relativity to have such strong gravity that nothing, not even light, can escape their grip.

Scientists today call such an object a black hole. Why black? Though the history of the term is interesting, the main reason is that no light can escape from inside a black hole: it has, in effect, disappeared from the visible universe.

Do black holes actually exist? Most physicists believe they do, basing their views on a growing body of observations. In fact, present theories of how the cosmos began rest in part on Einstein's work and predict the existence of both singularities and the black holes that contain them. Yet Einstein himself vigorously denied their reality, believing, as did most of his contemporaries, that black holes were a mere mathematical curiosity. He died in 1955, before the term "black hole" was coined or understood and observational evidence for black holes began to mount.


Why Study Black Holes?
Here are some good reasons:

--Human curiosity: they are among the most bizzare objects thought to exist in the universe.

--They should be strong sources of gravitational waves.

--As such, black holes should reveal much about gravity, a fundamental force in the cosmos.

--Confirmation that they exist will strengthen confidence in current models of cosmic evolution, from the Big Bang to the present universe.

Answer 5

Forget gravity, a black hole will suck your right off the face of the earth.
Black Holes FAQ (Frequently Asked Questions List)
Black Holes FAQ (Frequently Asked Questions List) Black Holes FAQ (Frequently Asked Questions List) This website hosts a list of common questions and answers about black holes. These include what a black hole is, how big they are, what would ...
Category: Black Holes > FAQ
cosmology.berkeley.edu/Education/BHfaq

Answer 6

Look Tora,
Black hole is a decayed star or u can call it a dead star.it is the densiest body in the universe and can suck even light.It is believed that u can travel in time through a black hole.

Answer 7

A black hole is a collapsed star. The gravity is so strong that not even light can escape it.

Answer 8

Blackhole sun
Won't you come
And wash away the rain

Answer 9

A very deep hole as if you can't see but black, that's why it was called a blackhole

Answer 10

Scientists have not explored this phenomena due to it's distance and unpredictability. Perhaps they are "time warps"?