Is it possible to travel in time ?

That's an exaggeration to some extent (it's intended to get you to understand time dilation).

The equation is as follows http://www.phy.olemiss.edu/HEP/QuarkNet/time.html

t = t₀/√(1-v²/c²)

You can NEVER travel AT the speed of light. If you did then if you experience ANYMORE than 0 time you would travel infinitely into the future. This illustrates that as far as photons are concerned that they travel from their source to destination instantaneously...

...anyway, first, let's say you travel at 99% the speed of light for week:

t = 1 / √(1-0.99²) = 7.08881205008 weeks

So if you did that, then everyone else would say you were traveling for 7 weeks (not 100 years).

Now let's see how fast you would have to go for 1 week to equal 100 years:

100 * 52 = 1 / √(1-x²)

-->

1 - x² = (1 / 100 * 52)²

-->

x² = 1 - (1 / 100 * 52)²

-->

x = √(1 - (1 / 100 * 52)²) ~ 0.9999999815 ~ 99.99999815 % the speed of light

If Albert Einstein was still around I would dare say with his theory of relativity exploration. He would say yes. I seem to remember someone saying as you get further away from earth. The farther away you get the slower time occurs. I do not think however we will discover time travel as if you think on the theory of time travel. If it was discovered in the infinite future. Would there not be evidence of such in our time from there travels? Just some food for though.

Ok...at this point we don't have the technology to do this but i can help explain some of the theories behind it...get ready for a trip! Ok so! Einstein's theory or relativity. Imagine it this way, you've got 2 mirrors with light bouncing between the two of them. One of them NEVER moves and the other is you. And lets say the light goes between both mirrors 100 times per second standing still for each second to pass, the light must go between those mirrors 100 times no matter how long it has to travel. the faster you move, the farther apart the mirrors are. And if you've taken any sort of algebra you probably know that the fastest way between two points os a perpendicular line. (At this point remember the pythagorean theorem a^2+b^2=c^2. So if at first the mirrors were 4 units apart from being face to face it would be a distance of 4 units. But if you were moving at a rate that would extend the distance side ways 3 units, then you'd have 4^2+3^2=5^2 (16+9= 25 and the square root of 25 is 5) so you'd be 5 units apart stretching the distance the light has to travel to bounce between the two mirrors 100 times and therefore stretching your second. The speeds to actually do this to noticeable extend are ridiculous so its not like everything would seem slow if you were going 120 mph on the highway, im talking hundreds of thousands of MPH for it to be noticeable) So when you move faster, it stretches the distance that the light has to travel to reach the mirrors. So when you are moving extremely fast through space, lets say now it takes the light twice as long as it does to pass between the mirrors at the distance we started with so it takes twice as long to do 100 passes, you are now going through time in half speed everything you see would seem to be going half as fast as it used to (in theory. However you'd be going millions of miles per hour so how could you possibly tell how fast things seem to go?). Eventually if you passed light speed, the light could never keep up with how fast YOU are moving so that time that it would take the light to travel between those mirrors is infinite. At that point, its unknown if you would either travel backwards in time or if time would halt entirely. I hope this at least made some sense! It took me a little while to understand the concept but i had a GREAT physics teacher and he explained it very well. I hope i did too! Here's a little visual to help! Its a crappy example but im working with an iphone keyboard ha ha

_

|

_ that's when standing still

_

/\

_ _ That's when youre moving. It takes longer to go between these because youre not only moving the same distance up and down but now side to side is added in.

edit: my picture didnt come out very well :( ill try to fix it

Yes, but into the future. Not like in the movies though. That may not ever be possible. But say you beamed to alpha centari then you beam ack to earth everything maybe changed. Since you travel through a certain amount of light years, but in general years that's way longer then traveling by regular craft. I'm not sure if it makes sense. I'm only 13 I'm pretty sure I know what I'm talking about and I'm just explaining it wrong. I love listenjng to Michio Kaku

If u travel in a vehicle with light speed,its a possibility you may travel through time

i say, read ALL OF STEPHEN HAWKING'S BOOKS, thats what i did, and there is a book on relativity theory alone, its made damn simple its called, relativity simply explained. Trust me , that book simply rocks !! it answers all of your questions..........this sort of question needs long hours of explaining and it needs d correct method of explanation, and that sadly cannot be done here,coz its not a 100 line joke...its wayy more than that, here's d link http://www.amazon.com/Relativity-Simply-Explained-... just read this , i guarantee you , that u will come to know everything you ever wanted to know. And yeah, jus go wid einstein and stephen hawkings for now, maybe in d future u could come up with your own theory . :)

thank you, hope it helped !

no never will be it's amazing how many people think time changes at the speed of light that's just theory and totally unproven, relativity is already falling apart as we learn more but all theories based on einstein's equation are unprovable

THAT is just a theory. The best example of time travel is a cell frozen in time.

You already are travelling in time, only forwards.

No