some says if we could travel faster than light, we can see our past! true?

Answer 1

We can never travel faster than light, so there is no speculation to be made. It is a physical impossibility, so no guess as to what happens then can be true.

What is true is that when we travel at speeds very close to the speed of light, time dilation occurs. In other words, time slows down. If I travel at extremely high speeds and my clock says 1 year has passed, on Earth, at our day-to-day low speeds, many more years will have passed, all depending on how fast I am travelling.

Answer 2

LET THE POWER OF MY ENCHANTED RING ENLIGHTEN YOU...The Cosmos is full of Wonder and Awe. But traveling faster than light (which is has been done on the atomic level), will not allow you to see the past. The measurement of Time is key here. Humans on earth measure time using the earth's rotation about its axis and the earth's rotation around the sun. If you are on a spaceship cable of flying at the speed of light what would be your time measurement? If you are using radiation cycles of cesium atoms (like people on earth), then the time elapses would be the same. The spaceship is covering 186,000 per second traveling 3 trillion miles into outer space and then 3 trillion miles back to earth would achieve this in one year. Space-time continuum is a fallacy.

Answer 3

technically you would see everything past present and future at the same time because you would have detached from the movement of time as you are now moving so fast that everything has to bend around you
a photon never ages because it is moving at the speed of light everything in the universe the entire flow of time is passing by in 0 time for the photon it is stationary and the universe is moving around it

Answer 4

that is an hypothesis no particles called "taquions" that supposedly are able to travel faster than the speed of light have been discovered... so no agas un alboroto de eso porque es solo una hipotesis

Answer 5

It actually has been achieved however it is neither cost-effective nor effective for that matter. All they achieved was to put a dog(or monkey I forget) in space and run it that fast or close to it but they only gained something like three seconds when this happened. Totally not worth it.

Answer 6

True. But it is impossible, as Einstein showed in the Special Theory of Relativity.

Answer 7

As speed increases, time does decrease. We don't know for sure if light speed is the break point between forward and reversing time.

Answer 8

we cant travel faster than light. no sense speculating about something that can only happen if something else happens that happens to be impossible

Answer 9

Mathematically - true, time becomes a negative number which some interpret to mean time would run backwards.

Realistically, simply impossible.

Answer 10

Perhaps, but I do know this. If you're Italian, and you flip on and off your light really really really really really really fast, you can see your pasta. nuck... nuck... nuck...