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Willem de Sitter - In Einstein's general theory of...
In Einstein's general theory of relativity the identity of these two coefficients, the gravitational and the inertial mass, is no longer a miracle, but a necessity, because gravitation and inertia are identical. (Willem de Sitter)

In Einstein's general theory of relativity the identity of these two coefficients, the gravitational and the inertial mass, is no longer a miracle, but a necessity, because gravitation and inertia are identical.

Willem de Sitter

Related topics

general gravitation identical identity inertia longer mass miracle necessity relativity theory

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