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  2. Einstein-aether theory - Wikipedia

    en.wikipedia.org/wiki/Einstein-aether_theory

    In physics the Einstein-aether theory, also called aetheory, is the name coined in 2004 for a modification of general relativity that has a preferred reference frame and hence violates Lorentz invariance. These generally covariant theories describes a spacetime endowed with both a metric and a unit timelike vector field named the aether.

  3. Einstein's thought experiments - Wikipedia

    en.wikipedia.org/wiki/Einstein's_thought_experiments

    An aether theorist would have regarded "...nor according to Maxwell's equations" as simply representing a misunderstanding on Einstein's part. Unfettered by any notion that the speed of light represents a cosmic limit, the aether theorist would simply have set velocity equal to c , noted that yes indeed, the light would appear to be frozen, and ...

  4. Exact solutions in general relativity - Wikipedia

    en.wikipedia.org/wiki/Exact_solutions_in_general...

    These tensor fields should obey any relevant physical laws (for example, any electromagnetic field must satisfy Maxwell's equations).Following a standard recipe which is widely used in mathematical physics, these tensor fields should also give rise to specific contributions to the stress–energy tensor. [1]

  5. U.S. Route 50 in Ohio - Wikipedia

    en.wikipedia.org/wiki/U.S._Route_50_in_Ohio

    A view of U.S. 50 (traveling west) near Albany, Ohio as it is about to leave the concurrency with SR 32 U.S. Route 33 during its brief concurrency with U.S. Route 50 and Ohio State Route 32 in Athens. East of Milford, US 50 becomes a two-lane highway as it travels through Hillsboro and Bainbridge before reaching the outskirts of Chillicothe.

  6. Solutions of the Einstein field equations - Wikipedia

    en.wikipedia.org/wiki/Solutions_of_the_Einstein...

    But if the exact solution is required or a solution describing strong fields, the evolution of the metric and the stress–energy tensor must be solved for together. To obtain solutions, the relevant equations are the above quoted EFE (in either form) plus the continuity equation (to determine evolution of the stress–energy tensor):

  7. Fizeau experiment - Wikipedia

    en.wikipedia.org/wiki/Fizeau_experiment

    In addition Einstein recognized that the stationary aether concept has no place in special relativity, and that the Lorentz transformation concerns the nature of space and time. Together with the moving magnet and conductor problem , the negative aether drift experiments , and the aberration of light , the Fizeau experiment was one of the key ...

  8. Einstein field equations - Wikipedia

    en.wikipedia.org/wiki/Einstein_field_equations

    The study of exact solutions of Einstein's field equations is one of the activities of cosmology. It leads to the prediction of black holes and to different models of evolution of the universe. One can also discover new solutions of the Einstein field equations via the method of orthonormal frames as pioneered by Ellis and MacCallum. [22]

  9. Derivation of the Schwarzschild solution - Wikipedia

    en.wikipedia.org/wiki/Derivation_of_the...

    This diagram gives the route to find the Schwarzschild solution by using the weak field approximation. The equality on the second row gives g 44 = − c 2 + 2 GM / r , assuming the desired solution degenerates to Minkowski metric when the motion happens far away from the blackhole ( r approaches to positive infinity).