Measurement of gravitational coupling between millimetre-sized masses

Measurement of gravitational coupling between millimetre-sized masses

Nature, Published online: 10 March 2021; doi:10.1038/s41586-021-03250-7

A direct measurement of the gravitational coupling between two 1-mm-radius gold spheres with masses below 100 mg using a torsional pendulum is reported.
Source: Nature