1671 Gravimetry

The book of science

Tom Sharp

Jean Richer geodesy Gravimetry


Earth’s shape


The diameter of the earth at its equator is forty-three kilometers greater than the diameter at its poles. This seems like a good distance; however, the top of Mount Everest deviates from the ideal radius of the earth only 0.14%. When calculating the local g, one has to remove the effects of altitude and local topography.

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