Einstein proposed the
theory of Special Relativity and General Relativity. It states that
space and time are really aspects of same thing : Space-time.
Space-time is like a flat surface and when it is curved it may be
possible to create a wormhole that connects one part of space-time to
another allowing us to go forward and backward in time.
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| Example for Time Dilation |
According to
this, time moves differently to different people corresponding to
their relative speed. A fast moving observer measure time passing
more slowly than a stationary observer would. Then this phenomenon is
called time dilation. Time travel used to be thought of as just science
fiction, but Einstein's general relativity theory allows for the
possibility that we could wrap space-time so much that you could go
off in a rocket and return before you set out.
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| Supernova Explosion |
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| Galactic Nuclei |
Relativistic physics
is necessary to fully understand the most energetic phenomena in the
universe from the supernova explosions of stars to the driving force
that makes some active galactic nuclei into the brightest objects in
the universe.
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