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How far back in time would you go if you traveled the speed of light?
Wiki User
∙ 6y ago
To an outside observer a person traveling at the speed of light would be frozen in time. To the person traveling at the speed of light, things would seem normal.
Wiki User
∙ 6y ago
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What if the speed of light traveled at the speed of sound?
You cant run with that speed. There will be no problem if you can.
How do you make a timemachine?
the only way i know how to time travel is that if you started at earth and went for a huge distance traveling at the speed of light (299,792,458 meters a second or 186,282 miles per second) then when you come back to earth you would have traveled in time. But the problem is we have nothing that can go near the speed of light and a lot of scientists say absolutely nothing can go faster then the speed of light.
If you could travel speeds greater then the speed of light would you be able to travel back in time?
Yes and No. Yes because traveling faster than light would make you go back in time. No because you would need an infinite amount of energy to go at the speed of light according to Einstein Also going at the speed of light or faster you would tern into light. So "you" could not go at the speed of light but light could. Time travel is possible but only at the earths gravitational pull (Turn) if the earth went backwards in spinning, but at the speed of light, the earth would move backwards through time as it broke the atmospheric compression field. WELL, AS IT HAPPENS... On a Distance against Time graph, the more distance you travel in the same amount of time, the steeper the line and therefore the faster your speed. The speed of light on such a graph is VERY steep, but it is NOT vertical. If it was a vertical line, then you would be travelling INFINITELY far distances in zero seconds. Which is impossible. However, assuming that it isn't, going EVEN FASTER would mean the line would start to curve back on itself, which would mean you were travelling a certain distance in a certain number of NEGATIVE seconds. Which would mean you were travelling back in time. So to answer your question, going faster than the speed of light would result in a VERY high speed. However, to go back in time you would need to go faster than a vertical line on a distance against time graph. In other words, to go back in time you would need to go FASTER THAN AN INFINITE SPEED. So, no you couldn't travel back in time by going faster than the speed of light. Even if you could, which you can't.
How is time travel possible with a speed more than velocity of light?
It probably ISN'T possible, since nobody has managed to travel faster than the speed of light. However, if you travel faster than the speed of light, that is equivalent to travel to the past. That is, if from one point of view you get (for example) from here to the star Toliman in a single year (light takes about 4 years), then from another point of view you'll have traveled back in time. This would let you travel back in time first from one point of view, then back in time from another point of view; as a result, you could come back to Earth (for example), in the past. For more details, check the Wikipedia article or other sources on "Simultaneity", specifically the sections on the the Special Theory of Relativity. The Wikipedia article would be "Relativity of Simultaneity".
If you traveled away from the earth for one year then traveled one year back how many years would have past by on the earths surface?
Two years; one out, and one back. Perhaps you are trying to refer to the "Twin Paradox", in which if one twin departs the Earth on a very fast spacecraft and travels at 99% of the speed of light for one year of SHIP TIME, and then returns, then far more than two years would have elapsed back on Earth for the twin who stayed behind. The closer you can get to the speed of light "c", the greater the "time dilation" effect would be. This is because at high fractions of lightspeed, time itself appears to slow down. However, at our current level of technology, you cannot attain speeds even remotely close to "c".
How fast would you have to travel to go back in time?
Faster than the speed of light, in theory.
Would you gain or lose weight if you traveled almost as fast as light?
Because if you are driving somewhere from a long distance,it is not helping you at all. Thankyou, Come Back Again!
How does the speed of light in the fiber compare with the speed of light in the outer covering?
The speed of light in the fibre is greater. As a result, light moving toward the outer covering is refracted back towards the core.
Does the light changes its speed as it reflects back from an object?
No.
How make a real time machine?
The have actually traveled I thing throught time before and back the only problem is, is that it had to travel at the speed of light therefor it couldnt see the future because it could not return if it stopped so it went there and back! Don't belive me google it!
If you traveled the speed of light for 14 years how old would someone on earth be if they were 20 when you left?
It would require an infinite amount of energy to propel a mass to the speed of light.But he answer depends on what you mean. From your perspective (the traveler), the person on earth would not age at all by the end of a one way trip directly out bound. They would still appear to be 20 years old, as the signals from that person would not have aged.If the person traveled 7 years out and 7 years back (at very close to light speed), the earth bound person would be 34, while the traveler (you) would still be the same age as when you left.The theory that accounts for this is known as "special relativity," and if you know algebra a function to calculate relative ages is: to = ts/(1 - v2/c2)(1/2)Where t=time, o=objective (earthbound), s=subjective (traveler), v=velocity and c=speed of light. The 1/2 exponent indicates the square root of (1-v2/c2).
Is the speed of light changed when it is reflected back into the same medium?
No.
