A representation of the geodetic effect.

General relativity

Einstein field equations

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The geodetic effect represents the effect of the curvature of spacetime, predicted by general relativity, on a spinning, moving body. A related effect was first predicted by Willem de Sitter in 1916, who provided relativistic corrections to the Earth-Moon system's motion.

Experimental confirmation

The geodetic effect was verified to a precision of better than 1 percent by Gravity Probe B, an experiment which measures the tilting of the spin axis of gyroscopes in orbit about the Earth.^[1] The first results were announced in April 14, 2007 at the meeting of the American Physical Society^[2].

See also

• Frame-dragging
• Gravity Probe B
• Timeline of gravitational physics and relativity

References

1. ^ Gravity Probe B
2. ^ http://einstein.stanford.edu/content/press_releases/SU/pr-aps-041807.pdf

External links

• Gravity Probe B web site
• Precession in Curved Space "The Geodetic Effect"

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