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Is it possible to travel back to the past if we travel at the speed of light?
Wiki User
∙ 9y ago
Yes, it is possible for sub-atomic particles to travel faster than the speed of light (186,000 miles/second). A total of 15,000 neutrino beams were fired from Geneva, Switzerland --> Gran Sasso, Italy and were found to arrive about 60 nanoseconds faster than light would have.
"It is a tiny difference," one scientist was quoted as saying, "But conceptually it's incredibly important."
For more information on breaking the speed-of-light barrier, please see the article attached below.
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoPossibly. Photons have no age because they travel so fast. It is believed that a few certain subatomic particles (called neutrinos) can go faster than Photons, therefore they can go back in time. There are a couple websites you can look at that are all about neutrinos. Google neutrinos, and you will get many, many results.
Wiki User
∙ 13y agoNo. Particles like photons, that travel ONLY at the speed of light, can do that; other particles (or any material objects made up of such particles) can approach the speed of light, but never quite reach it.
Wiki User
∙ 11y agoAt our own pace, we're all traveling towards the future. As long as you're still alive, you get a bit further into the future for every passing moment.
But I guess you're talking about time travel really, taking a big leap into the future w/o havling to live through the bit inbetween.
And the answer is - no one knows. Our understanding of physics and our universe pretty much stops at light speed, so science can't predict what happens if you go and do the impossible.
Wiki User
∙ 9y agoTechnically speaking yes. When you approach the speed of light your time frame with respect to the surrounding time frame decreases drastically. So if you were to circulate the earth in the speed of light for ten years and return back to earth you would find the earth 1000 years into the future.
Wiki User
∙ 13y agoAn object (like us) whose common situation is to be below the speed of light, can never quite reach the speed of light. In theory, such an object can get quite close to the speed of light, though. There are particles - such as photons - that can only travel at the speed of light.
Wiki User
∙ 9y agoNo. By travelling FASTER than the speed of light, this might in theory let you travel back in time. However, it seems likely that neither travelling faster than the speed of light nor time travel is possible.
Also note that a human being cannot travel at the speed of light; with a super-spaceship, we might in theory approach this speed, but not quite reach it. Only particles with "zero rest mass" (such as photons or gravitons) can travel at the speed of light (and, in a vacuum, they can ONLY travel at the speed of light).
Wiki User
∙ 10y agoIn theory, time travel can be accomplished by traveling the speed of light. However, the theory also states that travel at that speed is not possible.
Wiki User
∙ 9y agoNo.
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How fast can a radio wave travel to space and back to earth?
Radio waves travel at the speed of light which, in a vacuum, is about 3 x 108 meters per second.
What is the maximum possible velocity on the earth?
Assuming that Earth is an inertial frame, and that the refraction index of air=1, the maximum possible velocity on Earth is the speed of the light, which equals 299 792 458 m/s. Albert Einstein postulated this back in early 1900's.
Starting with light source describe the path the light must travel to reach your eye?
The light moves from the source in a straight line to an object and then moves into the back of your eye to your retina.
How do sounds made and how do they travel?
sounds are made by vibrations when air molecules move either back or forth
A space probe on the surface of Mars sends a radio signal back to the Earth a distance of 7.03 x 107 km. Radio waves travel at the speed of light (3.00 108 ms). How many seconds does it take for the s?
70,300,000,000 divided by 30,000,000,000 equals 2.34333333 seconds.
Can you go to the future by passing through dimensions in the universe by how much speed?
If it were possible to go any faster than the speed of light, you would see things happening before anybody else does, therefore technically, once we break the barrier for being able to travel faster than the speed of light (which is probably not possible), then yes, it is possible to time travel into the future. (By the way, the speed of light is about 300,000,000 metres per second - so good luck with this!!) However, it is impossible to ever travel back in time. I think I've answered this - hope it helps!
How can you go back to the past?
Easy....travel faster than the speed of light...
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".
Is time travel possible or not and elaborate on your answer?
There is many thoughts about time travel one theory is that if you travel faster than the speed of light you can see into the future and sort of 'jump' into the future and then travel one again faster than the speed of light to see into the past and then 'jump' back of course this is just a theory and has not been proven or said to be true and who knows the future seeing might take you to the wrong time so if your traveling back into the past you might go TOO far back to the past, no-one knows if this is true it has been tried but has been failed to go faster than the speed of light
How fast do you have to go to travel back in time?
Unfortunately, the ability to travel back in time is not currently possible. It is unknown to us what time travel requires, be it speed, distance, location, or what is capable of making the trip, if such a trip is even possible.
Do people travel back in time when they go back to earth?
No, but because time and speed are relative the closer we get to the speed of light the more time slows down.
If something started out already traveling away from us at greater than the speed of light will its light ever reach earth?
No. Speed of light is constant in all frames of reference, even if you are also traveling at the speed of light, the photon will speed away from you at the speed of light. When you see an object, what is happening is that photons are reflected off the object you are looking at and bounce back into your eye. However, if you are traveling faster than the speed of light, the photons can never reach you to start with, hence, you are invisible until your speed decreases to something below the speed of light. It is possible to travel faster than light in many ways. First, if you have a negative amount of energy, you will always travel faster than a speed of light. Another possible way is to compress the space in front of you, then move to your destination before re-expanding the space you have just past.
How could time travel be real if the future us didnt trave back to present us yet?
Because it isn't real but if you travel faster than the speed of light you move ahead in time so therefore it is possible
Does anyone have a theory on how to possibly time travel or breaking down human cells to travel at light speed and back to normal again?
No, they do not.
How fast would you have to travel to go back in time?
Faster than the speed of light, in theory.
When you travel the speed of light does time stop?
When you travel the speed of light everything around you is frozen in time but the further away something is from you the less of the effect. the light travels 9million seconds per second so that is why if you were to go back living our hours you would be very confused
Why is it important to measure the speed of light?
The speed of light is the fastest observed speed in nature thus far. It is critical in Einstein's equation for the energy of matter E=mc^2, where E is energy, m is mass, and c is the speed of light. It is also important for its implications in astrophysics. Black holes allow no light to escape an area, but if one can travel faster than light, one could conceivably escape the hole. It is also speculated as possible to go back in time if one could travel faster than light, or to traverse space in a zero amount of time. Many of the implications of light speed have weight in quantum and astronomical physics and are still being investigated.
