What do you mean by time dilation?
351868
Time Dilation: Time dilation is a consequence of Albert Einstein's theories of relativity. It occurs when one observer finds a clock which is measuring proper time ticking slow with respect to the relative time defined by his own clock (which is also measuring proper time). In special relativity, this occurs for clocks which are moving with respect to an inertial observer. In general relativity this occurs for clocks at lower potentials in a gravitational field, and is called gravitational time dilation.
492519
There is nothing like antidirection. \nWell, if it becomes possible (assuming) to move at the speed of light, the time dilation formula of the special theory of relativity says that the time would not elapse. That means your aging will stop!\nIf it becomes possible (assuming) to move with speeds higher than that of light, many things could happen. According to the time dilation formula, the time would become an imaginary quantity. One of the interpretation of this imaginary time goes like this: the time will start moving backward. Possibly, that is the situation when you can expect moving back to past. But, further mathematics shows that you are not necessarily going to reach to your own past. Rather, you could land onto some other, strange, alien universe!\nAt this point we have not talked about the change in your mass or length if you are moving with such a high speed. But, for sure you are not going to be the same!
62229
Actually, yes. traveling forward in time is definately possible, but we're not sure about back. \n\nVelocity distorts time. The faster you go, the slower time goes for you. This effect is negligable unless you are going very close to the speed of light. In fact the formula is:\nt'= t/sqrt(1-v^2/c^2)\nwhere t' is the time that has passed for a stationary observer, t is the time that has passed for you, sqrt means square root and ^2 means squared. As you can notice, when v is small, since c^2 is so huge, you get a miniscule decimal, and 1 minus that number is basically as small as .999999999999999 or something very very close to one, and so t' stays basically the same as t and time is not really affected. As v gets larger(it can never be the speed of light, then the denomonator would be zero) that fraction becomes closer to 1, so when you subtract it from one, the denomonator gets smaller and smaller, meaning t gets smaller(in order for t' to remain constant) this means that time slows down for the object moving at such velocities! time slows down, so it would feel like lets sayThis formula is correct, it is part of Einstein's theory of relativity, and I have had to derive it myself from ordinary mechanics formulas. \n\nThis proves the formula:\nAccording to the same factor, length also contracts. It has been observed in certain tiny particles coming to the earth's surface. These particles have a certain lifespan before they become unstable and decay. They are also moving at a certain speed. (which is very fast; close to the speed of light.) You should simply be able to calculate v=d/t (velocity=distance/time) to find out how far they would travel. However, they somehow travel farther than that. When this calculated distance is put into that formula, we come up with the correct distance they actually travel! \n\nSo yes, as you get faster and faster, since time slows down for you, theoretically, you could be moving at these speeds for a short time and time will seem to be moving normally for you, but have years and years pass for everyone else, thus traveling forward in time.
838844
I'm not sure what you are refering to. Einstein's special theory of relativity predicts that a "moving" clock actually runs slower. In addition to this, there is another effect which causes us to observe the clock "apparently" running faster or slower depending on the changing distance between the observer and the object...
680669
we r travelling at 1 second forward per second.\n\nIf that's not that u meant, the easiest and most likely way to get a time machine to time travel is for yourself in the future to travel back now to give yourself the time machine now which u got in the "past" from the "future yourself" coming back to gave it to u.
459592
Let's suppose you had a theory which explained that something would take t seconds.  Another theory says that it would take t + x seconds.  You want both theories to be true.  What do you do?  Well, if you are a genius like Einstein you say that time stretched from t to t + x seconds when you went from one theory to the other.\n\nTake another example.  Suppose you are running a race with a stop watch.  At the end of the race your stop watch says you took 60 seconds.  My stop watch says you took 90 seconds.  The logical explanation is that one or both of our clocks are wrong.  But, if you are an Einstein, you say that time was stretched, and your clock moved slow relative to my clock, but is still accurate.
177628
Actually, yeah.\n\nAlright, 600mph is 965,606 meters/hr. 965606 meters/hr is 268.2 meters/sec. This is 8.9408e-5% of the speed of light (3e+8 m/s). Following the time dilation formula, for each 12hr period, you'd gain 0.0193104 seconds.\n\nDo this every day for a year and you gain 7.0531 seconds. Do this for 50 years straight and you've just prolonged your life by 5.8776 minutes. Congratulations!\n\nIn case you're wondering, the time dilation formula is:\n\nT = To / sqrt(1-v^2/c^2)\n\nwhere T is the "time that changes" in seconds, To is the "normal" time in seconds, v is the velocity in m/s, and c is the speed of light in a vacuum in m/s.
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we travel in time as it is just only at the speed of our life and planet the thing to do is to step up or slow down the speed of the process then you are in a time machine
10953
well yeah... \nwell we dont have any definitive start or end point, so it's only relative to itself meaning that you can only measure a change in time, not how much of it you actually have. \nyour actual question is a little ambiguous, if this isnt what you meant, you can add some to the question,  are you looking for an explanation of how high velocities distort time or something, because I can explain that if you would like, just add it onto the question or make a new one or something.
630244
No not at all. This concept has been tested on more than one occasion. The faster a body moves the slower time passes relative to that person. This was tested by getting two superbly accurate atomic clocks were taken. One was left on earth and another was taken up in a jet plane. When the plane landed the clock on the plane was observed to be a couple fractions of a second behind the clock on earth. \n\nThe equation for this difference is:\n\ndelta T(stationary)=(1/sqrt(1-v^2/c^2))*delta T(moving)\n\nNot to be disrespectful but why are most of your questions concerned with doubting the theories that Einstein has put forth. Almost all of his theories have been tested and confirmed to extremely high degrees of accuracy
1088686
There will be some relativistic time dilation, even at highway speeds... but nothing you'd ever notice. I figure time dilation effects would be 1 part in 116,640,000,000,000 at 60 mph (100 km/h).
11463
The changes propagate at the speed of light, so I guess the time taken is,\n\nt = r/c where c = speed of light
461508
what does that mean?\nErr, atomic clocks adjusted back 1 second every few years to compensate for the earth slowing?\nMetric clock instead of 24 hour/60 minute?\nWhat are you asking?
299439
You've confused the statement of the theory. Let two observers be in the same inertial reference frame with two synchronized watches. One observer accelerates in a negligibly small amount of time to some fraction of the speed of light relative to the other observer. The latter observer will be called O1 and the moving observer O2. \nO2 will measure the time in 01's reference frame to be going *slower* than the time in his frame. Likewise, O1 will measure the passage of time in 02's frame to be going *slower* than in 01's frame (the half-life of particles "increases" depending on their speeds). In other words, given two events A and B that always occur t seconds apart in O, they will occur at some separation T > t when measured from O'. The same will occur if O' is switched with O in the sentence above.\nQuestions like this usually come from confusing the relativity of simultaneity. Remember that in relativity, there are no two events that are simultaneous with respect to all inertial frames. \nI recommend you check out the text "Spacetime Physics" by Wheeler et al.
239536
Put your hand on a hot stove for a minute, and it seems like an hour. Sit with a pretty girl for an hour, and it seems like a minute. That's relativity. -Albert Einstein
409498
By traveling faster than the speed of light.  As velocity approaches the speed of light, time slows down.  Traveling faster than light speed then - would make you travel back in time.  Theoretically, it is possible (according to the theory of relativity) but scientifically, it doesn't seem possible.
1163741
time is a relative thing....it's a measure that isn't even the same  in normal situations.as an example:u are sitting on a bench, you hae your clock with u,someone else ifs flying in a supersonic, he has his clock with him,in a hundred years or so his clock will show less than yours.time travel...well that's another complex thing...you see if somone were to travel at light speed it would gain a lot of time comparing to someone travelling at sublight speeds.there is a theory that if someone were to orbit the earth let's say , in it's oposite spining direction at a faster than light speed it would reach it's start position...BEFORE the actual start time, thus travelling in the past , but faster then light speeds can't be reached .other temporal anomalies apear in wormholes.