2007-10-20 05:29:26 · 24 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
Impossible,
Lets us consider The Whole journey of time to be a Maths Equation,
Which is constantly increasing at a gradual pace and has to be accurate for it;s survival
Time travel will be an unnatural phenomena, nature is not prepared for it
It will change a "single number" from the equation of time journey and thus Time and Our Existance will collapse,
as the answer for that equation will change
2007-10-20 05:35:42 · answer #1 · answered by Nishant A 2 · 1⤊ 0⤋
Adding to the quagmire of answers, here is my take on it...
Anyone who says that time travel into the future IS possible, is assuming that all of time has actually 'happened', much like a really long movie that has already been shown, and you can fast forward/reverse to any point of the movie.
This may be true, it may not.
The classic argument is that no-one has come back from the future to say hello yet. This may imply that if all time has 'happened' then time travel is not possible.
On the other hand it may imply that all of time has NOT 'happened' - the present is as far as we can go (if you get me).
Of course, we are all time travellers. We are all moving forward in time at a rate of one second per second ;-)
2007-10-24 10:31:12 · answer #2 · answered by Dave B 2 · 1⤊ 0⤋
Well, suppose time travel were to become possible in the future. Call the first time at which time travel becomes possible T. At that time, time travellers go back in time by an amount t>0, to time T-t. But, time travel isn't really time travel if you can't travel more than once, so once the travellers have arrived at time T-t time travel has become possible at a time earlier than T. However, T was defined to be the first time at which time travel becomes possible. Here we have arrived at a contradiction. So our initial assumption must have been wrong, time travel will never become possible. At least, not backwards in time.
2007-10-20 12:46:45 · answer #3 · answered by Sangmo 5 · 1⤊ 0⤋
time travel to the past is theoretically possible, although we have no idea how to do it. time travel to the future on the other hand is not as far as we know.
lets say you use a worm hole. thats basically connecting 1 points in space. lets so you connect the present to some point 5 minutes in the future. well that makes no sense because the worm hole would be longer than the original distance because the shortest distance between 2 points is a line. so as of now we have no idea how to travel to the future.
and i haven't heard of any scientists making particles travel back in time. it has long been known that point particles like an electron maybe have the ability to be, literally, in 2 places at once, but that doesnt mean they have traveled back in time.
sal is WRONG. traveling close to the speed of light slows time down. traveling at the speed of light stops time. traveling faster than the speed of light logically reverses time. but traveling faster than the speed of light is impossible.
2007-10-20 12:46:41 · answer #4 · answered by Anonymous · 1⤊ 0⤋
I think time-travel will be possible.
The reason why we haven't seen time travellers from the future is because the construction and workings of the time machine probably means they can't go back to a time before the machine was first switched on.
2007-10-28 12:13:25 · answer #5 · answered by nemesis 5 · 0⤊ 0⤋
Time travel is the concept of moving backwards and/or forwards to different points in time, in a manner analogous to moving through space. Additionally, some interpretations of time travel suggest the possibility of travel between parallel realities or universes.
Although time travel has been a common plot device in fiction since the 19th century, and one-way travel into the future is arguably possible given the phenomenon of time dilation in the theory of relativity, it is currently unknown whether the laws of physics would allow backwards time travel. Any technological device, whether fictional or hypothetical, that is used to achieve two-way time travel is known as a time machine
Some theories, most notably special and general relativity, suggest that suitable geometries of spacetime, or specific types of motion in space, might allow time travel into the past and future if these geometries or motions are possible.[9] In technical papers physicists generally avoid the commonplace language of "moving" or "traveling" through time ('movement' normally refers only to a change in spatial position as the time coordinate is varied), and instead discuss the possibility of closed timelike curves, which are worldlines that form closed loops in spacetime, allowing objects to return to their own past. There are known to be solutions to the equations of general relativity that describe spacetimes which contain closed timelike curves, but the physical plausibility of these solutions is uncertain.
Physicists take for granted that if one were to move away from the Earth at relativistic velocities and return, more time would have passed on Earth than for the traveler, so in this sense it is accepted that relativity allows "travel into the future" (although according to relativity there is no single objective answer to how much time has 'really' passed between the departure and the return). On the other hand, many in the scientific community believe that backwards time travel is highly unlikely. Any theory which would allow time travel would require that issues of causality be resolved. For example, what if one were to go back in time and kill one's own grandfather before one's father was conceived?
2007-10-20 12:40:36 · answer #6 · answered by Joe 3 · 1⤊ 0⤋
Time travel could be possible for instance if a way could be found to teleport people to a different galaxy in real time and because
galaxies are light years apart ( e.g. the light we see from the stars in distant galaxies has taken years to reach us because they are so far away) that could then be perceived as travelling back in time.
2007-10-20 12:56:38 · answer #7 · answered by steeley 3 · 1⤊ 0⤋
travelling to the future is possible by moving at very high speeds close to c. However travelling back in time is far more difficult if not impossible
2007-10-20 12:45:37 · answer #8 · answered by sal 1 · 1⤊ 0⤋
Of course it can. Scientists will be able to invent a machine to travel through time backwards and of course to the future. We will be able to see wonderful things if we get the chance. I think it will take about an century or two to invent a machine like this.
2007-10-20 12:49:14 · answer #9 · answered by Anonymous · 1⤊ 0⤋
Though it may be a long time in the future it will happen. The theory of relativity is such a vast mathematical jigsaw that it must be possible.
2007-10-20 17:17:49 · answer #10 · answered by J M 7 · 1⤊ 0⤋