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Equivalence principle

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Summary

The local universality of free fall and local equivalence between gravitation and acceleration, in formulations appropriate to general relativity.

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Equivalence principleEötvös torsion-balance experiments

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This is an authored directed relation from the source endpoint to the target endpoint.

Authored explanation

The torsion balances found no differential acceleration at their sensitivity, strongly supporting the weak equivalence principle.

How to interpret this relation type

The source theory, law, entity, prediction, or structural claim is directly tested, supported, constrained, or established by the target experiment or observation. Experimental support is not final logical proof; the edge detail states exactly what was measured.

Relation sources

Equivalence principleGeneral relativity

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This is an authored directed relation from the source endpoint to the target endpoint.

Authored explanation

The equivalence principle motivates and constrains the geometric description of gravitation.

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The source supplies a substantive formal ingredient, dynamical sector, law, field content, or mechanism of the target theoretical framework.

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Equivalence principlePound–Rebka experiment

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This is an authored directed relation from the source endpoint to the target endpoint.

Authored explanation

The result is consistent with the equivalence-principle connection between acceleration and gravitational frequency shifts.

How to interpret this relation type

The source theory, law, entity, prediction, or structural claim is directly tested, supported, constrained, or established by the target experiment or observation. Experimental support is not final logical proof; the edge detail states exactly what was measured.

Relation sources