Cavendish experiment
英[ˈkævəndiʃ iksˈperimənt]美[ˈkævəndɪʃ ɪkˈspɛrəmənt]
The Cavendish experiment, performed in 1797–98 by British scientist Henry Cavendish, was the first experiment to measure the force of gravity between masses in the laboratory,Boys 1894 p. 355 and the first to yield accurate values for the gravitational constant.