Since matter passing the event horizon is accelerated past the speed of light, wouln't it travel backwards in time?
2006-11-25 03:28:31 · 10 answers · asked by dsldragon2002 2 in Science & Mathematics ➔ Astronomy & Space
Can't see it, myself.
2006-11-25 03:35:26 · answer #1 · answered by Anonymous · 0⤊ 1⤋
I am not sure where you heard matter exceeds the speed of light. Also there are three kinds of black holes, stationary, electrically charged, and spinning. An electrically charged black hole has an inner and outer event horizon. So does a rotating black hole. And do not forget that intense gravity slows down time. Time may stop for something falling into a black hole but will not go backwards. Black Holes and Warped Spacetime by William J. Kaufmann.III
2006-11-25 03:52:57 · answer #2 · answered by pool_boy_77 2 · 1⤊ 0⤋
No, it's not probable. Is it possible? yes.
WHoevery said the material is accelerated past the speed of light? Actually the matter at the event horizon most likely will be there until the universe ends, because the stronger the gravity, the more time slows down.
2006-11-25 05:07:47 · answer #3 · answered by Anonymous · 0⤊ 0⤋
I believe according to Einstein and Newton's laws your theory sounds legit and very plausible. From what I've learned in my astronomy class, the closer you get to the event horizon the faster everything away from you seems to move, so actually going into a black hole could slow you down so much you would actually move backwards in time. I, personally, would not like to experience being crushed into a microscopic paste as i am pulled by the immense gravity of a black hole.
According to my text book, a paper clip size amount of the mass of a neutron star would fall through 3/4 of Earth where it would be pulled back to the core repeatedly until friction stopped it.... which poses the question.... What the hell is the new Dodge Nitro made out of? : )
Great Question.... may be one of those questions we will never know the answer to.
2006-11-25 03:45:11 · answer #4 · answered by NoMercy 1 · 1⤊ 0⤋
No one knows what happens to matter at the center of a black hole, our physics breaks down there. Some believe the matter goes into different dimentions within our universe. Since the gravity of the matter is obviously still there, in some form the matter must still exist, but basically your guess is as good as mine.
2006-11-25 10:39:39 · answer #5 · answered by ZeedoT 3 · 0⤊ 0⤋
No legit astrophysicist I know of has posited anything traveling faster than light in a black hole. In fact, no legit astrophysicist has posited anything with a positive rest (inertial) mass going faster than light anywhere.
Some believe that the universe itself expanded at faster than light speeds during the so-called inflationary epoch. But that is expansion of our universe, not the rest mass in it.
Time is not symmetric: meaning there is no off setting time vector for advancing time. Check this out:
"T-symmetry is the symmetry of physical laws under a time reversal transformation—
Although in restricted contexts one may find this symmetry, the universe itself does not show symmetry under time reversal. This is due to the uncertainty principle (at quantum scales) and thermodynamic entropy (at larger scales)." [See source.]
Time in our universe has one direction, advancing, because of the positive entropic nature of our universe. Succinctly, our universe has been running down since the big bang. It's just simply not getting any younger. Eventually, billions of years from now, it will simply peter out with a whimper and no more useful energy will be left in it.
This is not to say that time cannot run backward in special, limited circumstances. [See source.] But it does not run backward (in reverse) in general throughout the universe. The universe gets older, just like you and I do.
2006-11-25 05:22:03 · answer #6 · answered by oldprof 7 · 0⤊ 0⤋
It will just become a part of the black hole and increase its mass.
Because the gravity of the black hole pulls the matter inside
and it can't stand that gravity and collapse, becoming a part of the
black hole's mass.
It makes a very very little difference since black holes weigh
huge amounts. There are supermassive black holes that weigh
30 million times more than the sun.
2006-11-25 04:22:51 · answer #7 · answered by xsalibay 1 · 0⤊ 0⤋
It may, but a more plausible explanation is that the opposite side of a black hole becomes a white hole and forms new galaxies.
2006-11-25 03:31:27 · answer #8 · answered by c.arsenault 5 · 0⤊ 0⤋
I don't think it's any less probable than the idea that there's white holes (which have never been proven to exist).
2006-11-25 03:57:57 · answer #9 · answered by Anonymous · 0⤊ 0⤋
No - you cannot go back in time. You cannot go faster than the speed of light. As far as we know.
2006-11-25 03:30:48 · answer #10 · answered by Anonymous · 2⤊ 1⤋