And again, O M G, other users give so incredibly stupid answers, or they give the right answer, but explain it comletely wrong ... it doesn't matter whether we can travel at the speed of light or not, for the question of the asking user is hypothetical anyway. Furthermore, Einstein was already proven wrong ... it is already fact, that the speed of light is NOT absolute. Nerds.
Here we are: (by nowadays knowledge of physical law)
If you travel at the speed of light, you will see ... the past, too, becasue even at that speed the light coming towards you still took time to reach you. The only differene, if you, who travels at the speed of light towards a very distant star and another observer, who remained earth, both obeserve the same distant star in your direction of traveling ... and the star becomes a super nova, you will see it earlier than the observer on earth, because you travel at the speed of light towards that star. However, by the time the light of the super nova reaches you, it is showing you, what happend in the past. Because you can still be in a distance of, let's say 50 ly, so the "bang" of becomeing a super nova is already 50 years old by the time you see it, though you travel at the speed of light.
You can follow the very same logical structure even if you were slightly faster than the speed of light. We will never ever be able to literally "look" into the future ... at least not by just traveling at or faster than the speed of light.
However, one nice effect could be, presuming we could e.g. travel 1000 times faster than light, if we are in a great distance to earth and watch a super nova nearby, that could become dangerous for earth, we could "rush" home and warn them years before the emission of the super nova will be arriving, because that emission will travel "only" at the speed of light. This then might look as if the travellors had a look into the future, but only from the point of view for somebody who stayed on earh, because the can't see the super nova yet. Nonetheless, by the time you reach the earth and warn the population, the supernova is already past ... its emissions just haevn't arrived the earth yet, that's it.
2006-12-10 03:11:03
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answer #1
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answered by jhstha 4
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No.
First, an object with non-zero mass cannot move at the speed of light (unless our current understanding of physics is wrong). It would require infinite energy to accelerate a mass to the speed of light.
Second, even if you were moving at very close the speed of light (which is permitted by physics) all that happens to your physical observation of objects is that the wavelength of light is shifted -- towards the blue end of the spectrum if you are moving towards an object, and towards the red end of the spectrum if you are moving away from the object.
Here's what is a little bit weird: the speed of light itself doesn't change! One of the most basic assumptions of Einstein's Special Theory of Relativity is that the speed of light is independent of the motion of the observer. Thus, even if you were moving at near the speed of light, if you turned on a flashlight, you would still be able to measure it as moving at the normal 186,000 miles/second away from you!
Alas, you're always looking at the past, and cannot ever see the future.
2006-12-09 16:25:25
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answer #2
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answered by Mark H 4
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the individual that is within ten feet is in you're point of existence, you can acknowledge him/her and or relate to one another. the light that you see from the stars, even our star, the sun, takes time to get to this little place we call earth. so in essence, when we see the light of any planetary object, whether
reflected or emitted, by the time the light reaches your eyes, it is already past history. to be able to see into the future would require
that we would have to travel at many times the speed of light,
which as far as we know, has not been written, so may not exist. this is a paradox that we, as mere mortals may never understand. by the way this is one of the best questions asked
that i have read in a long, long time. keep your mental juices going.
2006-12-09 16:32:04
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answer #3
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answered by barrbou214 6
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If you go at the speed of light, or just under it, relativity makes it possible that you won't age, meaning that you can literally go to the future. It would take only seconds to do so. However, everything you witness once in the future, you won't be able to communicate back to the present time. Therefore, yes, you can go to the future using light speed. No, you cannot communicate these finds back to where you came from.
Unless of course you use the Prank Call machine that is featured in the 2nd to last episode of the 10th season of Southpark, however Southpark is mathematically proven retarded on a reality scale.
2006-12-09 16:23:27
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answer #4
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answered by Anonymous
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Negative!
According to Einstein's theories on relativity, as one approaches the speed of light (c), mass increases and time decreases. therefore, theoretically, you can never achieve c. Einstein also proposed that light was the maximum speed limit in the universe. This is why there is so much energy released in nuclear reactions (- when mass is converted to energy E=mc^2).
And according to quantum physics, as one approaches the c (or time zero in Big Bang) all mathematics break down into meaningless results.
2006-12-09 16:15:41
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answer #5
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answered by Scarp 3
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Assuming you were riding a beam of light and taking a look around as you did then you would be seeing things as they exist in the present. Since you traveling at the speed of light and you see things at distance divided by the speed of light time in your eyes would be equal.
2006-12-09 16:12:46
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answer #6
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answered by soul_plus_heart_equals_man 4
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