I read somewhere that for something near a black hole time slows down. What could cause this? and why is it that time slows down near to huge gravity fields, and time speeds up for an object travelling close to the speed of light?
2007-01-08 11:31:27 · 12 answers · asked by Anonymous in Science & Mathematics ➔ Physics
Time actually slows down for someone traveling close to the speed of light. Not like slow motion but time flows slower compared to someone who is stationary. If you had twins the fast moving twin would be younger.
The reason for this is because light (or any electromagnetic wave) is always viewed at the same speed relative to you, that is why it is used in many of Einstein's equations as the constant C like E=MC*2. No matter how fast you go light is always traveling away from you at the speed C which is roughly 300,000,000 Meters Per Second
So what does this have to do with time?
For simplicity I will say C = 1 Meter Per Second. Say you have a spaceship whizzing by you at .5 C and a light is turned on in the back of the ship. We will say the ship is 1 meter long. According to the people aboard it will take light .5 seconds for the light to reach the front and they would say .5 seconds have passed. But for you the stationary observer you would see the ship has moved from when the light was turned on to when the light hits the front of the ship. This means the light has traveled a greater distance, and because the speed of light is always constant this means that more than .5 seconds would have passed for the stationary observer.
It is a little more complex than this but basically these differences in time are because no matter how fast you go light always moves at C relative to you.
2007-01-08 12:34:17 · answer #1 · answered by ptall 2 · 0⤊ 0⤋
Time slows down for anything travelling at the speed of light. There's multiple takes on black holes. At first you couldn't see them. Just the effect around them. Now they're saying you can.
2007-01-08 11:38:04 · answer #2 · answered by vanamont7 7 · 0⤊ 0⤋
Disagree. right it truly is why: before everything, gentle does no longer reason black holes. A black hollow is brought about by way of the cave in of a well-known human being. Secondly, the speedier some thing is going the more effective mass it has. The more effective mass it has, the more effective skill it takes to make it go somewhat speedier. even as it is going somewhat speedier it has nonetheless more effective mass. Now it take even more effective skill to make it go speedier. This keeps till the quantity of skill required to make some thing go speedier might want to be equivalent to or more effective than each of the skill attainable contained in the total universe. At this factor it really isn't any lengthy achieveable to flow any speedier. This factor occurrs previous to achieving the speed of light. no longer some thing will ever go speedier than gentle. Einstein become accurate.
2016-12-28 10:57:50 · answer #3 · answered by proietto 4 · 0⤊ 0⤋
If you go faster than the speed of light, you theoreticly go back in time, It would be hard to explain in short why it happens, and I'm too lazy to type it up, but it has something to do with time (the fourth demension) stretching.
2007-01-08 11:35:36 · answer #4 · answered by atheist kid 3 · 0⤊ 0⤋
dono, its theory, and i dont see how it would change either. but being that we have yet to find a black hole. its not too likely.
i dont see why traveling at the speed of light would do anything either. so you pass a light molocule. wats the big deal? the earth didnt spin any faster1
2007-01-08 11:37:55 · answer #5 · answered by Anonymous · 0⤊ 0⤋
do you really think anybody stuck on earth could give you a for real answer. yeah ,they could give you all kinds of scientific ,einstien theories, but it' all a load of mindless crap till somebody actually got out there and got sucked in to a black hole and reported back , like some reporter from space on the local news ,ain't gonna happen
2007-01-08 11:37:04 · answer #6 · answered by Anonymous · 0⤊ 0⤋
well yes and no...
time is something that humans "made-up" to give sequence of events meaning. its a way for us to give something a begining, middle, and end. some people ask, "what was before time?" but sence there really isnt anything as "time", then the only thing that can be before nothing IS nothing. i know its a hard thing to wrap your brain around and thats ok. thats the reason why humans made-up "time".
2007-01-08 11:39:49 · answer #7 · answered by Erik N 4 · 0⤊ 0⤋
acceleration equals velocity over time a=v/t. and velocity equals distance over time v=m/t. so theoretically time equals t=v/a or t=m/v. as velocity gets huge like in light speed, t becomes very small in t=m/v, imagine t=1/1 billion and time becomes insignificant or non existant at such speeds.
2007-01-08 11:49:32 · answer #8 · answered by Anonymous · 0⤊ 0⤋
Relativity baby!
2007-01-08 11:35:30 · answer #9 · answered by Fitz 3 · 0⤊ 1⤋
yea
2007-01-08 11:35:52 · answer #10 · answered by Anonymous · 0⤊ 0⤋