Twin Paradox Animation

Experimental and theoretical topics in relativity

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Twin Paradox Animation

Postby PHY » August 23rd, 2006, 4:27 pm

Twin Paradox
The twin paradox which is a contribution of Albert Einstein's Special theory of relativity has been animated here.

[flash width=600 height=600 loop=true]misc/flash/relativity/twin_paradox.swf[/flash]

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Postby socratus » April 14th, 2007, 7:47 am

It is original.
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Postby socratus » April 14th, 2007, 8:13 am

It is original, but not correct and impossible.
Because Einstein's Special Relativity Theory / Twin paradox
( travel with speed c=1 ) does not have any relation to a astronaut.
Special Relativity Theory only examines the behaviour
of a quantum of light / electron.
Twin Paradox ( time travel ) has relation only to
a light quantum / electron.
SRT/ Twin Paradox has grown from Maxwell's theory.
And only an electron/ quantum of light is a main
and single hero in the Maxwell's theory and SRT.
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Postby wiliamttt » July 3rd, 2009, 2:05 pm

Special theory is not related just to electron. It can be applied to anything.
Anyway I still do not understand what causes the paradox. In my opinion it should not be explained using special theory of relativity. The special theory is related to inertial systems only ( precondition), which are in mutual straight and constant movement. But the case with rocket doesn't represent an inertial system, because rocket has to brake and accelerate. In case of inertial systems both guys must measure the same time, because there is no way ( no physical experiment) to find out what system is really moving.
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Postby okielogger78 » October 14th, 2009, 2:10 am

There is a way to fix this paradox. The act of braking or accelerating is the solution. If it weren't for the acceleration and decceleration, the twin traveling wouldn't know he is moving. The ship feels a force on it while it is accelerating from Earth to c, then a force when it turns around, then another force when it brakes at the Earth. From the point of view of the Earthbound Twin, the ship is moving away to a certain point and returning some time later, taken from from his frame of reference. Now from the frame of reference of the Shipbound Twin, the Earth would suddenly accelerate away from him to c, then it would come to a hault and circle around him and start accelerating back toward him to c, then it would deccelerate as it is approaching him until he landed back on it. We know that the Shipbound Twin feels the acceleration and decceleration of the trip. One big question, does the Earthbound Twin feel the same forces as well? He apparently doesn't. Where the physics breaks down is in the frames of reference that are not in uniform relative motion, ie, acceleration and braking frames.
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