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Measurement of the Speed of Gravity

The speed of gravity is an important universal constant. But, it has not been directly known with experiment or observation. The explanations for it are contradicted with each other. Here, it is presented that the interaction and propagation of the gravitational field could be tested and understood by comparing the measured speed of gravitational force with the measured speed of Coulomb force. A design to measure the speeds of gravitational and Coulomb force is presented. From satellite motions, it is observed that the speed of gravitational force is larger than the speed of light in a vacuum. From this observation and the recent experiments, the structure of electric and gravitational fields is studied. A line to indirectly test the wavelengths of gravitational waves is presented.

preprint2013arXivOpen access
Yin Zhu
physics.gen-ph
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Yin Zhu

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