Time Travel: Einstein's big idea (Theory of Relativity)

Here is a little clip about how time travel can occur. The clip was taken from: The World's First Time Machine (Discovery Channel). Dr Ronald Mallett

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[guitar19jeu]

so u can only go in the future?

[RojOdio]

Unless he was always his real father.

[Matthew Reo]

TIME MACHINE ON SALE REAL AND WORKING MUST SEE

/watch?v=tzVOthvceD8

[coolgorilla512]

lol idiot

[FishBowl911]

Time is nothing more than a word to describe events. For example, a bird flaps it's wings then it lifts off then it goes into flight then it moves forward then moves forward more. One event happens after the other. That is time. Nothing more. It is like taking a ruler and saying something is 6 feet.  You cannot put a 6 feet into your hands and you cannot go into a 6 feet. How ridiculous you say that you can go into time is beyond me. You humans are too dumb.

[FishBowl911]

Your pitiful human existence makes me want to puke. What a joke. You are the laughing stock of the universe and don't even know it and prance around like you are so great. What a sorry organism. ***sigh***sigh***, shame. Let's see, you have this formula which mimics your thinking that t=time and act like it is real ? Hmmmm......I see.....this is exactly why you are unworthy to travel among the stars.

[8207082]

and your not human i take it?

[gdv99]

Well if you would go faster then light you would go back, but that is not possible so no

[guitar19jeu]

yea i know

[lzekk]

Not as far as I understood. They explain a good deal here:

/watch?feature=player_detailpa­ge&v=xvZfx7iwq94#t=259s

First of all. You never simply 'go into the future'. The faster you go, the slower time goes by for you compared to someone else who stands still. So 1 min for you would be for example, 20min for the other person ( 3:20 ). So, when 1 year passed by for you, and you aged 1 year. Then 20 years would have been passed by for the other person (and rest of the world).

[Quan Tran]

oh what I was asking was that it says that "In fact, he would be travelling 100 years into the future," so how does he go back to his time? or he's gonna stuck there forever?