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Theory of relativity
English Wikipedia - The Free Encyclopedia
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Theory of relativity
The
theory of relativity
, or simply
relativity
in physics, usually encompasses two theories by
Albert Einstein
:
special relativity
and
general relativity
. Concepts introduced by the theories of relativity include
spacetime
as a unified entity of
space
and
time
,
relativity of simultaneity
,
kinematic
and
gravitational
time dilation
, and
length contraction
.
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