Gravity Probe B Experiment
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Nellieger
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PHYSICS
General Relativity
Gravity Probe B Experiment
Earth's rotation subtly twists spacetime, revealed by ultra-precise gyroscopes in orbit
4 days ago
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What was the primary challenge Gravity Probe B faced in measuring the geodetic effect and frame-dragging?
Detecting extremely tiny changes in gyroscope spin direction caused by spacetime curvature and rotation
Measuring the gravitational pull of the Moon on the satellite's orbit
Proving that gravity is caused by electromagnetic forces rather than spacetime curvature
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PHYSICS
General Relativity
Gravity Probe B Experiment
Gravity Probe B confirmed subtle spacetime distortions predicted by Einstein's theory in Earth orbit
1 Feb 2026
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What physical phenomena did Gravity Probe B aim to measure to test general relativity?
The bending of light around the Sun during an eclipse
The geodetic effect and frame-dragging caused by Earth's mass and rotation
The expansion rate of the universe due to dark energy
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