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# Is time travel possible?

3 years, 1 month ago

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For understanding time travel we have to first understand time it self . what is time ? Its a relative measure of speed of light any thing in kinetic state. For static things time might be same all the time. So by this concept time travell is possible. · 2 years, 8 months ago

That's a difficult problem to solve. Whether is possible or not, we have to think about the consequences of it. Have your ever thought about time collapse? Like on Terminator and Back to the future films? · 3 years, 1 month ago

In today's world,time travel is not possible.According to the equation,e=m$$c^2$$,m is mass, c is the speed of light and e is energy.So if a body travels in time its mass becomes infinite which is called time dilation and explained by Einstein.Time travel may be possible in future. · 1 year, 10 months ago

Yes.

Scientists have already testified, that using "Wormholes", one can go back in time. There's only one problem: Wormholes are highly unstable and once opened, close almost instantly. To keep one open, you need tremendous amounts of energy. But, scientists have come up with an alternative: Negative Energy. Created in lab conditions, Negative Energy has problems of its own, and currently can't be used at will.

http://en.wikipedia.org/wiki/Wormhole

You have missed out on one fact. Wormholes are hypothetical. They don't exist, and if so, scientists have detected them. · 3 years, 1 month ago

You haven't read the article have you? They already did open a wormhole, but it closed too quickly. Also, only because things are "hypothetical" doesn't mean they don't exist. Keep an open mind. · 3 years, 1 month ago

They haven't opened a wormhole. I read the article. They say they have no observational evidence. The wormhole that closed too quickly, the Schwarzschild wormhole, is a solution to a wormhole, but the haven't actually tried it out. You have misread.

By the way, I said wormholes haven't been found yet. They may exist and if so, YAY!, but right now they haven't been. I think that wormholes use extreme energy but this is an exotic energy. My answer is currently based on facts but you could be able to travel in time but you would also travel in time and space and another dimension, the fifth dimension so who knows where you end up. · 3 years, 1 month ago

this depends on whether you want to go forward in time or backwards. Theoretically it is possible to travel forward in time by traveling at near the speed of light. so if you went at 99.99% the speed of light for one week in your time, a whole century would have passed outside as time would have been slowed down for you dramatically. but if you wanted to travel backwards in time, you can't because you need to travel faster than the speed of light to obtain that much energy, as Einstein's equation E=mc^2 states, and if you affect things that happen in the past, there may be serious repercussions that would occur. · 3 years, 1 month ago