Twin Paradox solved

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Twin Paradox solved

Postby Orwell » Sun Feb 18, 2007 4:02 am

http://www.hindustantimes.com/news/181_1931145,0004.htm

So, being confused whatever a Twin Paradox is supposed to be, I look it up on Wiki. Now I'm just thoroughly confused.

Basically, time is not a constant, but why is it not a constant? And can I use this excuse to say that the due date of this very important paper travelled at light speed while I remained stationary, writing it?
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Postby Otohiko » Sun Feb 18, 2007 4:08 am

Before I sleep, one thought:

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Postby Ayanefan » Sun Feb 18, 2007 6:00 pm

I think the modified theory says that if you take 2 objects that are really far apart and move them at different speeds in relation to each other, by the time they reach each other they'll either be totally dead or nobody will care by that time.
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Re: Twin Paradox solved

Postby downwithpants » Mon Feb 19, 2007 1:06 am

Orwell wrote:Basically, time is not a constant, but why is it not a constant? And can I use this excuse to say that the due date of this very important paper travelled at light speed while I remained stationary, writing it?

the classic example is you are traveling in a train and there is another train alongside your train at the same speed. there is a mirror on the other train, directly across from you. you shine a flashlight at the mirror and observe how fast it takes to see the light in the mirror. to you, the light simply has to travel across to the mirror and back to you in a straight line.

but to an observer standing on the ground, the light beam has to travel at an angle, because the position of the trains when you shine the light, when the light hits the mirror, and when the light hits your eye, are all different. the light, then, has to travel a greater distance than just the distance between the two trains.

but since the speed of light is constant, the time you observe the light to reflect back from the mirror is shorter than the time the observer on the ground observes.

ergo, time is not a constant. and the second matrix was created.

the difference between relativistic and classical understanding of time stems from the fact that light moves through a vacuum at the speed of light regardless of the observer's frame of reference, whereas in classical physics, velocity is dependent on the observer's frame of reference.
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Postby downwithpants » Mon Feb 19, 2007 1:09 am

And can I use this excuse to say that the due date of this very important paper travelled at light speed while I remained stationary, writing it?

you'd be better off using existentialism or nihilism as your excuse.
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Postby Shazzy » Mon Feb 19, 2007 1:17 am

Or bribes.
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Postby badmartialarts » Mon Feb 19, 2007 8:48 am

If you are going to link to an article on nihilism, you should link to the definitive one.
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