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Albert Einstein's theories of special and general relativity transformed our understanding of space, time, and gravity. Special relativity introduces concepts like time dilation and mass-energy equivalence, while general relativity describes gravity as the curvature of spacetime. Experimental confirmations, including the bending of starlight and the detection of gravitational waves, validate these revolutionary theories.

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11 views1 page

Termo

Albert Einstein's theories of special and general relativity transformed our understanding of space, time, and gravity. Special relativity introduces concepts like time dilation and mass-energy equivalence, while general relativity describes gravity as the curvature of spacetime. Experimental confirmations, including the bending of starlight and the detection of gravitational waves, validate these revolutionary theories.

Uploaded by

omercbg837
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© © All Rights Reserved
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Special and General Relativity – Redefining Space and Time

Abstract:
Albert Einstein's theories of relativity fundamentally altered our understanding of space,
time, and gravity. This essay explores the revolutionary concepts of special and general
relativity and their experimental confirmationses.

Body:
Special relativity, proposed in 1905, rests on two postulates: the laws of physics are the
same in all inertial frames, and the speed of light is constant. These lead to counterintuitive
consequences like time dilation, length contraction, and relativity of simultaneity. The
famous equation E=mc2E = mc^2E=mc2 emerges from this framework, expressing the
equivalence of mass and energy.

General relativity (1915) extends these ideas to include gravity, describing it not as a force,
but as a curvature of spacetime caused by mass and energy. The Einstein field equations
relate the geometry of spacetime to its energy-momentum content.

Experimental tests, such as the bending of starlight by the Sun (1919) and GPS time
corrections due to gravitational time dilation, have confirmed relativity's predictions.
Gravitational waves, detected in 2015 by LIGO, provided direct evidence for general
relativity’s dynamic spacetime.

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