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General relativity at 75: how right was einstein?

C M Will

    Science (New York, N.Y.)
    |November 9, 1990
    PubMed
    Summary
    This summary is machine-generated.

    Experimental tests confirm Einstein's equivalence principle and general relativity with high precision. Advances in gravitational wave detection and ongoing research explore the frontiers of relativistic gravity.

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    Area of Science:

    • Physics
    • Astronomy
    • Gravitation

    Background:

    • Reviewing experimental tests of general relativity on its 75th anniversary.
    • Einstein's equivalence principle is supported by experiments like the Eötvös experiment and gravitational redshift.
    • Tests of general relativity include light deflection, Mercury's perihelion advance, Shapiro time delay, and the Nordtvedt effect.

    Purpose of the Study:

    • To review the current status of experimental tests of general relativity.
    • To highlight the precision achieved in various relativistic tests.
    • To discuss the frontiers of experimental relativity and future research directions.

    Main Methods:

    • Experimental verification of fundamental principles of relativity.
    • High-precision measurements of gravitational phenomena.

    Related Experiment Videos

  • Analysis of data from binary pulsars for gravitational wave damping.
  • Discussion of theoretical concepts like the 'fifth force'.

    • Main Results:

    • Einstein's equivalence principle is well-supported by existing experiments.
    • General relativity tests have reached high precision.
    • Gravitational wave damping detected with 1 percent accuracy using binary pulsar measurements.

    Conclusions:

    • Experimental evidence strongly supports general relativity.
    • Ongoing research and technological advancements promise further tests of relativistic gravity.
    • The study provides a comprehensive overview of experimental relativity's progress and future outlook.