Is time travel theoretically possible? If so, what are the possible affects on the space-time continuum?

Answer 1

If it was at all possible the universe would be over run by time travelers in all parts and all eras of the universe.

Answer 2

Although I believe somewhat in the space-time continuum, I don't think time travel is possible for the following reason. The whole universe in travelling at a very fast rate through space. If you were to travel back in time, say 100 years, you would be at the spot where the earth was 100 years ago. The earth would have moved on to a new location. Conversely, if you were to moved ahead in time 100 years, you would land at the spot where the earth will be 100 years from now, which would put you in a different part of the universe or into empty space.

Answer 3

Time travel is possible. We are all traveling time at this moment at relatively the same rate, the faster something were to travel, say in space, the slower time would appear. Scientist did research in the 60's, they calibrated 2 watches, they kept one on earth and sent one into space to orbit for a while at a tremendus speed, when the watch came back it took slightly less time than the earth watch. Time travel backward or into the past is impossible, not just due to the "grandfather effect" but because if history has already happened you would have to have been there in the first place in order to go back to witness it, for instance to see the declaration of independance signed, even if you hide behind a curtain, you would have to have been there originally in order to go back in the present and hide.

Answer 4

while dealing with math and science, the saying, "anything is possible" has to be considered a matter of opinion.

For instance, is it possible that 1 + 1 = 3? There is actually a false proof of that.

Time travel is not possible. I do believe that time manipulation is possible (slowing / speeding) but not reverse. It goes against all laws and concepts of science.

Hope this answered your question

Answer 5

A bunch of scientists just came out to say it's most likely not possible. Kip Thorne has an idea where you can travel in time but only back to a time when the time machine itself existed

Answer 6

There was just a new study published yesterday - it says "NO"
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You Can't Travel Back in Time, Scientists Say

By Sara Goudarzi
LiveScience Staff Writer
posted: 07 March 2007
09:01 am ET



The urge to hug a departed loved one again or prevent atrocities are among the compelling reasons that keep the notion of time travel alive in the minds of many.

While the idea makes for great fiction, some scientists now say traveling to the past is impossible.

There are a handful of scenarios that theorists have suggested for how one might travel to the past, said Brian Greene, author of the bestseller, “The Elegant Universe” and a physicist at Columbia University.“And almost all of them, if you look at them closely, brush up right at the edge of physics as we understand it. Most of us think that almost all of them can be ruled out.”

The fourth dimension

In physics, time is described as a dimension much like length, width, and height. When you travel from your house to the grocery store, you’re traveling through a direction in space, making headway in all the spatial dimensions—length, width and height. But you’re also traveling forward in time, the fourth dimension.

“Space and time are tangled together in a sort of a four-dimensional fabric called space-time,” said Charles Liu, an astrophysicist with the City University of New York, College of Staten Island and co-author of the book “One Universe: At Home In The Cosmos.”

Space-time, Liu explains, can be thought of as a piece of spandex with four dimensions. “When something that has mass—you and I, an object, a planet, or any star—sits in that piece of four-dimensional spandex, it causes it to create a dimple,” he said. “That dimple is a manifestation of space-time bending to accommodate this mass.”

The bending of space-time causes objects to move on a curved path and that curvature of space is what we know as gravity.

Mathematically one can go backwards or forwards in the three spatial dimensions. But time doesn’t share this multi-directional freedom.

“In this four-dimensional space-time, you’re only able to move forward in time,” Liu told LiveScience.

Answer 7

Anything is possible but this - is highly unlikely irrespective of recent, well grounded theorem. Time ends. Like a burnt out fuse. You can't get any use out of that. That makes the notion untenable. Not to mention you have to take destiny into account. If you can't do that, you don't have a working theorem.

Answer 8

If when we look at starlight we are seeing the light that the star emmitted thousands of years ago,Then we are peering into the past,so I think some day we will figure out how to peer into the future ,,, maybe we will ride the light rays both ways??I guess anything is possible...

Answer 9

Recent news indicates science believes travel to the
future is possible but travel to the past is not...
This certainly eliminates the grandfather paradox...

Answer 10

mathematically time travel is possible if you can travel faster than the speed of light. howevere this is supposed to be impossible. the way i like to think about it is, if time travel is possible, where the hell are all the time traveler from the future?????????