Extended Data Fig. 4: Probability distribution of F(d) without an electromagnetic shield.
From: Measurement of gravitational coupling between millimetre-sized masses
Without electrostatic shielding, the probability density distribution of inferred force versus source–test mass separation requires three constituents to describe: Newtonian gravity (see Fig. 3), electrostatic interaction between charged (~8 × 104e+; e, elementary charge) test mass and grounded source mass56, and an unexplained force proportional to the separation.
