2007-01-01 06:16:05 · 23 answers · asked by sunnivabyrne 2 in Science & Mathematics ➔ Physics
No. It really isn't feasible.
2007-01-01 06:17:40 · answer #1 · answered by Anonymous · 1⤊ 1⤋
Many people believe it, but there is no evidence to prove traveling to the future or past. However we can see what has happened in the past by just looking to the stars.
The sun is a good example; the light from it left 8 minutes ago so we are seeing into the near past. Some planets that exploded many years ago still show up in the night sky even though they have disappeared forever.
With a super powerful telescope we could watch the second by second events of a planet that doesn't exist.
Just a thought; If the universe is circular perhaps we could see the image of ourselves centuries ago coming back to us now.
2007-01-01 14:27:13 · answer #2 · answered by mogli 2 · 0⤊ 0⤋
Sit where you are and you travel to the future. Problem is, it's at the same speed as your surroundings/
Move somewhere and come back, and less time will have passed for you than a stationary observer, so you come back to that observer's future. That's all from Einstein's special theory of relativity. The problem is that, for normal speeds, the time interval is a tiny, tiny fraction of a second. And there have been experiments to confirm this, flying atomic clocks round the world.
However, repeat it at speeds close to the speed of light, for a reasonable time, and you will move to the future of a stationary observer in less time than s/he.
Problem is, this system forbids travelling back in time, so when you reach the future, there is no coming back.
Physicist Kip Thorne has shown that travelling in space and time, to an earlier time, is not impossible, but probably impossible - see Paul Davis's book 'How to build a time machine'
2007-01-01 15:34:08 · answer #3 · answered by Andy D 4 · 0⤊ 0⤋
Well we can travel into the future now...just wait.
Acctualy i belive that in the future we may be able to travel further into the future by going into suspended animation on a ship that can attain relativistic speeds. You see, as we speed up close to the speed of light time slows down from our frame of refference. So imagen its 2007, you go into "cryosleep" and autopilot takes the ship out beyond the kuiper belt, to aviod interstellar debris. Your ship approches approximately 99.9% C (C=Lightspeed which is considered for the explanation to be Constant) and starts doing laps around the SOL-System. At this point time for you just slows down to a crawl while things humm along on earth at an apperantly accelarated rate, a couple of hours or days of laps could be years or eons back on earth say now its 4007. You would have traveled into the future much further than naturaly possible.
As for going backwards in time, you need to warp space back on itself, which takes insane ammounts of energy (look up "plank energy"), so they say it would take a space fairing civilization capable of harnessing the entire energy out-put of either a star or an entire galaxcy i forget which one. But yeah time travel is cool just dont mess with the past. Oh yeah rent the movie "Primer", none of this good stuff but real neat time travel movie non-the-less.
2007-01-01 14:45:03 · answer #4 · answered by Whamy 3 · 0⤊ 0⤋
No, but it makes for fascinating and intriguing thought experiments, as well as SciFi novels and movies.
We do not presently know enough about the nature of time to seriously speculate on the possibility of moving in different directions in it.
I personally believe that neither the future nor the past still exists in some other dimension or reality. We simply move into the "future" as time passes, and the time behind us is simply that, behind us, gone, in the past and non existent in reality.
2007-01-01 14:25:58 · answer #5 · answered by LeAnne 7 · 0⤊ 0⤋
Travel forward in time is possible and practical using time dilation as a time accelerator. Basically you put a space capsule in orbit around the sun and accelerate it to near light velocities. In twenty years or so (to outside observers)you open it and the occupants have spent a few days inside (according to their watches)
Going backward in time is also THEORETICALLY possible provided you travel faster than light. No one has any good engineering drawings for that yet.
2007-01-01 15:01:58 · answer #6 · answered by walter_b_marvin 5 · 0⤊ 0⤋
If this would ever happen, wouldn't we have already heard of it? I mean, they can travel BACK in time, so how come there's been no visit to us or our ancestors? And our world is full of quite a few problems right now. Wouldn't somebody travel back and fix 9/11 or Iraq or WWII etc.?
This topic would make for a great debate!
2007-01-01 14:25:46 · answer #7 · answered by KatyScarlett 2 · 1⤊ 0⤋
Of course no. It is just a fantasy. We will never return the past. But, sometimes it is very nice to watch movies on this theme. In general it is awfull to think about as real possibility. No, No, No, No. I do hope NO!
At same time I have nothing against if mankind will move forward more quickly.
2007-01-01 14:21:40 · answer #8 · answered by VERITAS 33 3 · 1⤊ 1⤋
No, simply cause the future has yet to happen, and if you travel into the past, the future ceases to exist, because the past for you, is now your present. leaving you to die wherever you landed in the past, so mabey traveling into the past may be possible, but the future isnt here. and if we could travel into the past, how far, and would it be worth it? It would have to be worth alot to send some volunteer back into the past to lose everything he had. But look at the show 7Days, they could only go back a wee, not a big loss.
2007-01-01 14:19:37 · answer #9 · answered by carneymaster11 2 · 0⤊ 2⤋
No. That Will Never Happen. Time Travel Will Never Exist!
2007-01-01 14:18:23 · answer #10 · answered by † Dark Prince † 4 · 1⤊ 1⤋
I don't guess that I will be able to travel into the past, because if I could I would come back to right now to tell myself that it is possible.
2007-01-01 14:18:19 · answer #11 · answered by Random Precision 4 · 1⤊ 1⤋