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special relativity, general relativity

입력 해석

special theory of relativity | general relativity theory

Description

special theory of relativity | The special theory of relativity is the theory that unifies the properties space and time, known as spacetime. The theory relies on Einstein's two postulates: first, the laws of physics remain unchanged in inertial reference frames, and second, the speed of light in a vacuum is the same for all observers, regardless of motion. This theory has a variety of non-intuitive consequences, like time dilation and length contraction. general relativity theory | Albert Einstein's general theory of relativity is a gravitational theory that unifies the separate properties space and time, known as spacetime. Although many of its predictions are nonintuitive, like time dilation and gravitational lensing, general relativity is so far experimentally upheld and is the current theory for gravitation in modern-day physics.

Alternate names

special theory of relativity | special relativity general relativity theory | GR | GTR | theory of general relativity

Iconic equations

Special theory of relativity

E = m c^2 | E = (m c^2)/sqrt(1 - v^2/c^2) | t = t_0/sqrt(1 - v^2/c^2) | l = l_0 sqrt(1 - v^2/c^2)

General relativity theory

g_μν Λ + G_μν = (8 π T_μν G)/c^4
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