Which British scientist discovered and studied hydrogen, was the first to measure Newton's gravitational constant, and calculated the mass and mean density of the Earth?
Henry Cavendish Sir Henry Cavendish Cavendish Balance Cavendish, Henry Cavendish balance HENRY CAVENDISH Sir henry cavendish
sir henry cavendish cavendish balance henry cavendish cavendish henry
henry cavendish
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HENRY CAVENDISH