is there such a thing as a working caduceus machine that develops a time travel field?
103746
Hoax.\n\nTime travel is almost certainly impossible in our universe (the whole cause-and-effect thing). And there is certainly no time travel machine. Even if the machine was secret, some of the physical basis for such a machine would be known. And its not.
857528
I have not seen or met a time traveller. However their is such a thing as a gauche horizon. Basicaly when you create a time machine you cannot travel back before the time machine was created. So sence as far as I know, no time machine has been invented as of yet. It would be impossible for a time traveller from the future to experience what life is like in our historical period. For instance if the time machine was created in 2500 they may start having time travellers from the future coming back for anthropological surverys. However they could not visit 2006 because the time machine was not yet invented.
1105020
Possibly although Stephen Hawking once said that if time travel existed, we would see plenty of tourists from the future already and we would have historic accounts of them. There are plenty of theories of how it could work but no definitive solution has been developed.
60294
yes, it's possible to travel into the future but not into the past. all you have to do is travel near the speed of light relative to earth and when you return after what feels like a few minutes, you'll find that many years have actually passed by.
813626
Sadly, I've actually heard about this before.  I can't believe how much useless junk I put into my head...I'd say pure fiction.  Its just more likely that he was some bored computer geek trying to get some attention.  Its still unclear whether or not time travel into the past is possible.  Based on current science I'm leaning toward the impossible side.  Oh well, 2036 will be here soon enough.  Then we'll know for sure.   ;)
506183
I don't think it is possible.  If it was possible, it could sure mess up current events...or would it mess them up or fix them and what would the consequences of their actions be in the long run.  Hypothetically, it can be quite a conundrum really.  I really don't think that we, as humans, have even the remotest possibility of messing with time.  It is, and will remain, in the realm of fantasy and science fiction.
519456
There are some strange solutions to Einsteins field equations which some theorists claim to offer the possibilty to travel backwards in time but these are pure hypothesis.\n\nFor one of these possibilties you would need a huge amount of "strange matter" which we yet even don't know what it is exactly, other of these hyothesis would allow to travel back in time, but not past the invetion of the thime machine, since this time machine is the "exit" on the other side of the "time tunnel".\n\nOther scientists say it will never be possible, for varios reasons, one of the most mentioned is the problem with causality (althogh there are again theories that that would't be a problem) another very funny one is by Stephen Hawking: There never will be time machines, becaus if it would we would see tourists from the future all the time.\n\nSo, seriuosly, don't expect to see a working time machine during your lifetime.
1043962
No.  It is not possible to compress three dimensions of time into one.  It is also not possible to travel back in time, as that has already occurred.  However, according to Albert Einstein, the theory of relativity and the Einstein-Rosenbridge theory, it is possible to travel forward in time, relative to people on earth.  It is very complicated, but involves traveling beyond the speed of light (currently not possible) and near black holes (also not possible).  So theories exist on this subject but are unproven.
1186578
it created its self, time travel was involved
1005791
Huh?  We solved time travel long ago.  Go somewhere real fast.  Come back and we'll all be dead.  You made it to the future.\n\nNow, by the nature of your question I assume you are looking for the physicist who is plotting to take over the universe with his new time machine.  Turn off the TV for a few minutes.  No 'branch' is trying to 'solve' time travel.  Unified theory be damned!  Someone throw me a string!
734390
Theoretically, time travel is possible. But current technology does not permit it. An interesting article appeared in Popular Science a while ago on time travel physics (see link). You're right about the stars - in that we're not looking at them in real time. In a similar vein, light from the earth reaches outward into space. An alien civilisation looking at us from far away through a telescope could theoretically view our past history. But light also weakens the further it gets away from its source, so to really look way back into our past, we'd need a really powerful instrument to detect such light patterns.
130146
Currently not possible. Scillicon is not the most efficient but its abundance on earth is amazingly practicle. They've found ways to use nickle for example that can be 1000 times faster, but they'd have to reconstruct all the mechanism of the computer. \n\nnewscientist.com search quantum computer\n\nhttp://www.google.com/search?q=site:newscientist.com+quantum+computer
303837
Time travel is possible when we travel forward not backward. IF you look to the history books there are no such thing of human come form the future. So that is the proof that has defined the theory that we can't go to the past. There are theory that we can move forward by using the method of speed. Once you increase the speed of travelling the time will change very fast, and you might be in the future. But to have that kind of machine to bring you forward needs a lot of discovery especially about the strenght of metal, fuel, speed, and a lots more. You can get the theory about speed from einstein. Whatever you want to know about it, you can get it there, BUT eventhough you learn about time travel, you won't get that technology while you still alive. Maybe you can use that information just for you knowledge. Not more than that.
739346
yes it exists...\nbut cant be achieved by man....\nmay be in near future he may achieve tht too...i dont know coz now i cant travel into future..\nk...according to this guy called einstein..\nwhen some body travels at a speed relative to tht of light,lets say some 0.9c where c is speed of light then in tht frame the time contracts..he told a twin paradox to make it clear..\nlets say there r 2 twins of age 25...if one of them travels at a speed of some 0.9c for some 20 yrs (this 20 yrs is in our frame)\nthen after tht when he comes again to rest then he finds himself to be some 27 yrs old when his brother is 45 yrs old..\nso its equivalent to going into future...\nbut till now there is no theory to prove that travelling into past is possible..\ni think thts not possible...coz past is already happened n if its possible we can change the past....which is not possible as it is already happened....\nits all just theory...i wonder how can anyone achieve a speed relative to that of light....can any material sustain that much of speed???no way...so i think we cant make such time machine which can travel at a speed relative to that of light...
138044
Science fiction has explored this in tremendous detail, and has come up with no solid answer.  I'm not going to, either, but let me see if I can share a little bit of thought to help you find an answer you're comfortable with...\n\nEnvision the existence of a human being as a path that the human moves along, moving only in one direction: always closer to the end of the path, and further from its start.  So far, so good?  (Mathematically, it would be a 3-dimensional curve in a higher dimensional space; (string theory wants it to be 10 or 11 dimensions, I hear) your perception of time would be caused by your traversing that curve.)\n\nNOW: Time travel says that there is a way of bending this path around so that, although you're still moving closer and closer to the end of the path, the path itself loops around behind itself.  Think of a rope that's laid on the floor in a zigzag or a loop.\n\nFirst: the person who is me in, say, 2020, and comes back to visit me in 2006 is not identical to the 2006 me: that person is further down the path...  I might not even recognize the future me as me...\n\nSecond: I suspect that what happens depends whether the path zigzags without crossing itself, or actually crosses itself, forming a loop.  What the loop would do is pure guesswork...  It might separate off (See: "The Lincoln Hunters"); it might do nothing (See: "The End of Eternity") or it might cause an incredible release of energy, possibly destroying the individual altogether, and maybe lots of other things, as well.  (See: "The Weapons Shops of Isher")\n\nUntil we develop the ability to travel backward in time, we just don't know; all we can do is guess, guess, guess.\n\nWhich is fun--and the source of a lot of good fiction I've read!
1011227
Love to give you specifics, but don't know how.\n\nTheoretically, what you suggest is possible by relativistic theory. There are things called "tachyons" which are these kinds of rays which reverse time - well not "reversing" it, but definitely messing it all around.  Einstein said that nothing could accelerate to faster than speed of light without becoming infinite mass - but "...Einstein said nothing about entities already traveling at that speed or greater..." (Prote in K-Pax).  \n\nSo who knows - is it around the corner for us?  Probably not.  Is it possible?  I love this universe, so I say yes.  Keep surprising me...
964513
A time machine.\n\nI have always been fascinated with the concept of time travel, changing the past and seeing the future.  \n\nActually, I think most people are. \n\nMost have thought "What if" I could go back in time and rearrange a key event in their past or in history. \n\nThe future, of course, would just be fun to gaze on.  So many things have changed in the last 100 years, it's difficult to imagine where we might be in another 1000 years...if we don't destroy ourselves.\n\n...but even that would be fascinating to see:\n\n"The day the earth died".