2006-12-07 19:05:40 · 12 answers · asked by chapped lips 5 in Science & Mathematics ➔ Astronomy & Space
Close to the event horizon the force of gravity would be very strong so even though you could still escape it would take a lot of energy. Also the gravity gradient could be quite steep. This means that if you were vertical with respect to the surface the force on your feet would be greater than that on your head and this difference could be enough to tear you apart.
2006-12-07 19:35:34 · answer #1 · answered by rethinker 5 · 0⤊ 0⤋
To be "sucked" into a black hole, one has to cross inside the Schwarzschild radius. At this radius, the escape speed is equal to the speed of light, and once light passes through, even it cannot escape.
The Schwarzschild radius can be calculated using the equation for escape speed.
vesc = (2GM/R)1/2
For photons, or objects with no mass, we can substitute c (the speed of light) for Vesc and find the Schwarzschild radius, R, to be
R = 2GM/c2
If the Sun was replaced with a black hole that had the same mass as the Sun, the Schwarzschild radius would be 3 km (compared to the Sun's radius of nearly 700,000 km). Hence the Earth would have to get very close to get sucked into a black hole at the center of our solar system
As the density increases, the path of light rays emitted from the star are bent and eventually wrapped irrevocably around the star. Any emitted photons are trapped into an orbit by the intense gravitational field; they will never leave it. Because no light escapes after the star reaches this infinite density, it is called a black hole.
But contrary to popular myth, a black hole is not a cosmic vacuum cleaner. If our Sun was suddenly replaced with a black hole of the same mass, the earth's orbit around the Sun would be unchanged. (Of course the Earth's temperature would change, and there would be no solar wind or solar magnetic storms affecting us.)
for more info check these recources
http://imagine.gsfc.nasa.gov/docs/teache...
http://imagine.gsfc.nasa.gov/docs/scienc...
There is quite a bit of black hole theory out there. For more information on it, try these books:
Black Holes and Warped Spacetime - William J. Kaufmann, III
Lonely Hearts of the Cosmos - Dennis Overbye
Black Holes and Time Warps, Einstein's Outrageous Legacy - Kip S. Thorne
The Mathematical Theory of Black Holes - S. Chandrasekhar
Black Holes and Baby Universes and other Essays - Stephen Hawking
Universe - William J. Kaufmann, III
Black Holes and the Universe - Igor Novikov
Source(s):
http://imagine.gsfc.nasa.gov/
docs/science/
know_l2/black_holes.html
2006-12-08 04:09:02 · answer #2 · answered by Talking Hat 6 · 0⤊ 0⤋
The best way to find out without calculating any number is to take cam which can take pic on IR range and other radio waves ranges. Take a pic of the Black hole. You will see the EM waves as well as other substances(gas & dust) near the event horizon revolving around the BH. So you can be on those lines. However you need to be speeding sufficiently to avoid getting sucked up and torn into gluons.
Best of Luck and do send me some pics from there. I am bugged up with the false coloured pics available on the net.
2006-12-08 05:29:11 · answer #3 · answered by Sanju_the_gr8 4 · 0⤊ 0⤋
as far away as possible. once you've entered the event horizon there is no escape. the gravity is so strong not even light can escape it. you will be pulled to the center of the black hole: the singularity where all the known laws of physics no longer apply, because spacetime is warped to the breaking point.
2006-12-08 06:50:46 · answer #4 · answered by Sam 1 · 0⤊ 0⤋
Gravity acts over any distance. A black hole at the other end of the universe would slooowly slowly suck you in (if there weren't other masses that would attract you in the other direction).
2006-12-08 03:28:06 · answer #5 · answered by the_bendude 3 · 0⤊ 0⤋
Many scientists have been sucked in by black holes.
Eventually they will find out they do not exist.
2006-12-08 15:17:55 · answer #6 · answered by Billy Butthead 7 · 0⤊ 1⤋
Depends on how much mass it has, but you can be pretty far and get caught in it - far like light year away.
2006-12-08 03:10:15 · answer #7 · answered by Anonymous · 0⤊ 0⤋
about 3 beers
2006-12-08 11:31:26 · answer #8 · answered by Anonymous · 0⤊ 0⤋
Depends on the size of the black hole.
By the way, "The power of Christ compells you".
2006-12-08 03:08:50 · answer #9 · answered by firefly 5 · 0⤊ 1⤋
unknown...but its said that before it came into eye-contact, you'd be in another life. Nothing can escape its pull, not even light.
2006-12-08 06:22:08 · answer #10 · answered by Diadem 4 · 0⤊ 0⤋