Einstein's Special Theory of Relativity E=mc2 speed of light

@2012DarkKnight this is correct, but the difference at speeds we can achieve are not noticable. You may be a 10th of a second 'behind' in age from someone that was still. But if a child were put in a rocket ship, and circled the globe at near the speed of light for a year. He would return return many hundred years in the future. All people he knew one hour ago (to him) would be long dead and buried. Strange.. but true. Basically, time travel.. forwad in time.

@ z3r0t0l3r4ns:
This needn't be correct. As you can see when you look at the equasion of a reaction and back-reaction which is true for all chemical prozesses every chemical prucess needs a certain amount of time. If you move at the speed of light no radical could harm your cells.

I have my own theory YT=BS. Your theory=
Bull sh--. This is getting ridiculous. We haven't traveled outside our solar system, yet we seem to understand the universe. Let's seperate the facts from THEORY.

@ 2012DarkKnight
While you are correct that a person who was constantly moving would appear younger than one who never moved it would be more the result of the exercise they were getting than Einstein's theory.
The theory of relativity refers to time, speed and point of reference. Your appearance as you grow older is due to aging which happens over time but is not dependant on it.
If time did not exist it wouldn't stop free radicals from damaging the cells of your body.

so theoretically a person who moved around constantly all his life might look younger then someone who sat on their but then right??
well that explains alot. thanks Mr. E

This is really interesting, how time is slower when you move than when you are standing still!

OK, I realize this is a dumb question but for some reason I just can't understand what the speed of light has to do with energy/mass equivalence. My brain thus far has just chosen not to understand the connection, if anyone can help I would greatly appreciate it.

The speed of light squared is just a large number that reveals the mathematical relationship between the 2 --- that small amounts of mass are large amounts of condensed energy (mc^2). Throughout the history of math and physics, the squaring of numbers has always been revealing, even with simple geometry in A squared + B squared = C sq

No, the effect is extremely small.
If you go 26000 miles PER SECOND, that is 15% of the speed of light, time only goes 1% slower.
But the consequence of this, namely E=mc² is much easier to see in experiment, since it implies that even small mass m has huge energy E. (Boom!)

In general Relativity (Einstein, 1915, ten years later) Gravitation is understood as a consequence of curved and compressed space and time. Hence, different Gravitation, different time flow.