or would we exist at different energy levels?
2006-11-15 13:45:26 · 14 answers · asked by Coke&TVdinner 2 in Science & Mathematics ➔ Astronomy & Space
How's this for a proposal.
Maybe time travel is possible, but when you travel back or forward in time, the Earth doesn't travel with you. Therefore, you will remain at the same place but the Earth will move in its orbit away from you at 30 km/s, or won't have arrived there yet. The sun would not be in the same place either, it would have moved in its orbit around the centre of the galaxy at about 240 km/s, etc.
Unless we have a way of taking into account the very real movement of the Earth and Sun through space, even a displacement of a few minutes would put us out in space, or well beneath the Earth's surface.
Still think it is possible to travel in time?
2006-11-15 16:38:06 · answer #1 · answered by Labsci 7 · 1⤊ 0⤋
Most people believe that time is a linear function... meaning past, present and a future; one pathway (regardless of direction). Much like a pencil drawing on paper without lifting the pencil.
However, what if time wasn't linear and rather explosive in all directions (like food coloring dropped in water). Is it not possible that time travel would mean people would travel to different spots in this explosion, sometimes meeting up in the same location, but never following the same path?
2006-11-15 13:59:05 · answer #2 · answered by Silas 2 · 0⤊ 0⤋
Something weird happens to time as you approach the speed of light. Time slows down and this has been verified by atomic clocks on jet aircraft. Though a jet is very slow compared to the speed of light. In the experiment, the clock in the jet was slight slower. There are things we do not fully understand in the universe. And you have asked one of these questions. It could be that there a laws in physics that allow for time travel but don't allow the time traveler to interact with the other time dimension. Perhaps, it only allows you to observe
2006-11-15 20:34:27 · answer #3 · answered by timespiral 4 · 0⤊ 0⤋
in my taking of the laws of physics time travel is impossible. if the laws of physics are correct, which i think they are, atleast in our universe, then its impossible 2 me.
the LOPs state that matter cant be created or destroyed, and i take it they mean at a single point in time, so initially u would be creating matter in the point you are traveling to, and removing, or destroying maybe, matter from whence u came.
also, if u needed 2 go faster than the speed of light 4 time travel, which the LOPs say is impossible, then u couldnt go faster.
I also think gravity has a say. I think it may be able 2 hold a mass from attaining light speed, or that it would not allow a mass to break a hold in the space-time continuum.
if time travel is possible, then time and space would not be eternal, so we'd need 2 use another word than continuum.
2006-11-15 17:42:52 · answer #4 · answered by Joey 2 · 0⤊ 0⤋
actually i believe that time travel is possible. but you can only travel to the future, you cannot travel back to the past. going to the future is possible only if you are riding a vehicle that can go faster than the speed of light or travel very far from the center of the eart. i have read it from einstein's theory of relativity. This is possible because the theory says that time travels faster in higher places or when you are farther from the center of gravity of a planet, than when you are at ground level.
2006-11-15 13:58:46 · answer #5 · answered by magina 2 · 2⤊ 0⤋
If time travel were only possible back to the creation of the time machine, then no, we wouldn't be seeing them pop up yet. We'd have to wait until the machne were created. The example I hear most often is accelerating one end of a wormhole at relativistic speeds, causing the two mouths of the hole to get out of sync.
2006-11-15 13:53:00 · answer #6 · answered by Chance20_m 5 · 1⤊ 0⤋
Wow...You got a flood of varied answers from hopefuls and people posing new theories that may or may not have meat
in the sandwich. Please excuse the fact that I stopped to
read them and check what folks had to say...
From my standpoint, since we don't know how to go about
time travel at today's date, it is fairly safe to assume that
those who came before us didn't know how to accomplish
it either. Given that, as a starting point, lets consider that
time is a relative thing, and that you wish to exceed it. That
means you first have to capture and examine it to note the
characteristics and so forth. Umm-m, let me see, could we
put it in a bag and carry it to the lab? Nope... Loose to much
time doing that. You have got me... I can't figure out how to
look at time, other than just seeing it pass away on a clock.
Regards,
Zah
2006-11-15 14:16:37 · answer #7 · answered by zahbudar 6 · 0⤊ 0⤋
Probably not from the past, but defenitely from the future. But then I always wonder when you travel to the past you instantly change the future and therefore your own life. I mean we all saw Back to the Future! We know what can happen!
It just drives me crazy to think about it. It is kind of paradox.
2006-11-15 13:54:10 · answer #8 · answered by Kerstin D 2 · 0⤊ 0⤋
Time travel from the remote, barbaric past would explain the existence of all these conservative republicans that seem to have emerged from the woodwork in the last few years.
2006-11-15 15:07:35 · answer #9 · answered by hznfrst 6 · 0⤊ 1⤋
What if time travel would have been possible in the year 2525 but we weren't around anymore to invent it? That would explain the lack of visitors.
2006-11-15 15:18:03 · answer #10 · answered by Anonymous · 0⤊ 0⤋