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i.e. i stand next to a source of light emitting a steady stream of photons.now i start moving in the same direction at a greater velocity than light,and keep accelerating.as i overtake each photon,i see a bit of what is'past'.i.e,i travel back in time in a way. but is there any case where my time frame would be reversed?where i get younger,so to speak?

2006-08-30 21:49:47 · 15 answers · asked by sage of saigon 2 in Science & Mathematics Physics

i`m accelerating,not at a constant velocity.i know i can observe the past, but will my age reverse,instead of just slowing down?

2006-08-30 22:23:36 · update #1

15 answers

You can see the effects of this if you look up into the sky on a starry night. Those shiny stars you see are in many cases millions of billions of light years away. That means the light they are emitting is millions or billions of years old. The stars we see shining in the sky at night may or may not actually exist anymore! But, they did exist a billion years ago to emit the light that finally made it's way here. So, from the star's perspective, we're a billion years in the past. If we moved faster than the speed of light towards the star, we'd be moving in the future, from the star's perspective.

The relationship between light speed and the time dialation experienced is in fact the exact opposite. The faster you go the more times slows down, at light speed it stops, at faster than light speed it goes backwards. We proved this Einstein theory with twin atomic clocks, one riding in a jet airplane over 40 years ago. The one in the jet slowed down ever so slightly, but more enough to proove the speed of light - time dialation relationship.

2006-08-30 21:55:26 · answer #1 · answered by surfinthedesert 5 · 0 0

Considering the scenario you discribed you won't travel in time. Only from a photons point of view, (that you just overtake) you come from it's past and traval towards it's future.
For you it will always be present.
But there is a special effect:
If one remains on earth and you travel at the speed of light or even faster, you slow down the aging process. Einsteins specific therory of relativity predicts, that you, if you return after a while having traveled a a velocity of or higher than c, that you would be measurable younger than your twin sibling.
To express it differently:
The statement is: Wehn traveling at or even faster than c time runs slower ... much slower.
It is hard to imagine, but we might need only 10 years to the next galaxy ... but during these 10 years, for mankind on earth 2 million years will have passed. That means we would calculate, feel and age only by 10 years, because we travel at a velocity way higher than c.
However, that was postulated and is predicted by Einstein's theory ... for the next 100 years, we propably won't have the possibility to gain any kind of evidence.
To get that we need to overcome the threshold of the speed of light.

2006-08-30 22:03:49 · answer #2 · answered by jhstha 4 · 0 0

Time cannot be reversed. If you tarvel faster than the fastest particle you just travel fast. Its like travelling faster than sound where the sound follows you.
Inversion of time is not possible as time keeps increasing infinitely.
Therefore for ordinary mortals you will be ahead in "time" & space"
as you are the fastest. The fact is distance travelled is enormous
for a given time.
Its like track event where the fastest reach the post 1st while the slowest reach later given the fact that the post is not moved each time the fastest nears it. Also here it is assumed that the you travel at constant velocity

2006-08-30 22:17:55 · answer #3 · answered by babdi_26 1 · 0 0

Very lovable. yet, did you recognize that mild travels at a % of appoximately 186,000 MILES per 2d while Sound can't bypass a lot swifter that a million,000 toes per 2d! that's how you may calculate how distant a lightning bolt is by using counting, 'a million-a million,000... 2-a million,000... 3-a million,000..." when you word the flash of light and until eventually you listen the crash of thunder. upload those 2 numbers mutually and also you get the area (in toes) the lightning bolt changed into you said the flash. in case you ought to not even count number to a million, meaning the lightning bolt struck something a lot less that one thousand toes away!! in case you managed to count number to 60, that lightning bolt turned right into slightly over a stunning 10 miles away! If the sound changed into audible (in a position to be heard) then the sound at that area ought to were over 100 twenty 5 decibels loud! (Human ears can in simple terms upward thrust up to sounds of 128 decibels for no more beneficial than 5 seconds devoid of going deaf!) At that aspect of sound, the lightning bolt must have generated almost 5 gigawatts of electrical energy!! that's adequate skill to get rid of darkness from an finished city for a really couple of minutes!

2016-11-23 15:43:27 · answer #4 · answered by ? 4 · 0 0

If you were traveling faster than the speed of light you could potentially turn around and see your self going backwards in time. This happens because you see the light closest to you first.

You would not age during the period you were traveling everyone else would have though.

2006-09-05 06:55:49 · answer #5 · answered by sangreal 4 · 0 0

Try going back further and find Einstein. He may be able to answer your question. But the very theme says, that in space you stops time. There is a story in indian mythology that says One day in space (Heaven) is equal to many years in Earth. So logically, if you go to space, you will return younger than those on earth.

2006-08-30 21:58:37 · answer #6 · answered by rups 3 · 0 0

You will not grow younger.... you will stay the same as you are, but, relative to you, the world ages faster. To understand this, I'd refer you to Prof. Stephen Hawking's "A Brief History of Time" You'll get your answers there.

2006-08-30 22:04:26 · answer #7 · answered by andalite_friends 2 · 0 0

why we can see ? well , photons enter in ours eyes. when we travel faster than light (photon ) no photon would be able to enter in our eye so we cannot see it as we r faster than photons. past time cannot come back at any meaning,,i believe that this type of thinking is misunderstanding of Istine theory

2006-08-31 01:42:11 · answer #8 · answered by vijay4118 2 · 0 0

in a running race you might cross one single person many times that doesnt mean that you see the past of that person.
if so then after you finish the race you should have grown younger & the other person would grown older.
this is not possible right. it is just your imagination.

2006-09-04 15:35:02 · answer #9 · answered by suba_univ 1 · 0 0

Theoratically, if you would to travel at the speed of light, it is most likely that you would be stuck in a state of "pandimonium", where time is suspended.

2006-08-30 22:01:42 · answer #10 · answered by Jonathan N 3 · 0 0

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