Relativity And Gravitation 1-20
20 entries in the Relativity And Gravitation compendium.
Einstein field equationsTensor equations linking spacetime geometry to matter-energy.Energy–momentum relationRelativistic equation linking energy, mass, and momentum.Four-momentumFour-vector combining energy and momentum in special relativity.Four-vectorA four-component vector transforming under Lorentz transformations in special relativity.General covariancePrinciple that physical laws are independent of coordinate choices.Geodesics in general relativityGeodesics describe the paths of freely falling particles in curved spacetime.Gravitational constantFundamental constant quantifying gravitational force strength.Gravitational fieldA vector field explaining gravitational influences around a body.Gravitational potentialScalar potential representing work per unit mass in a gravitational field.Gravitational singularityA point where spacetime breaks down catastrophically.Gravitational time dilationTime passes slower nearer a massive body.Gravitational waveGravitational waves are waves of spacetime curvature produced by the relative motion of grHawking radiationPredicted black-body radiation from black holes due to quantum effects.Inertial frame of referenceFrame where objects obey inertia and laws are simplest.Invariant (physics)An observable unchanged under a transformation.Kerr–Newman metricMost general asymptotically flat stationary electrovacuum solution of Einstein–Maxwell equLadder paradoxA thought experiment on length contraction and simultaneity.Length contractionA moving object's length is measured shorter than its proper length.Faster-than-lightHypothetical travel or communication faster than the speed of light.Fifth forceA hypothetical force beyond the four known fundamental interactions.
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