Renato Vieira dos Santos

New work exposes a gap: the effect of charge on gravity has never been systematically studied. The authors predict a tiny change in acceleration depending on the charge-to-mass ratio and propose modifying a torsion balance to illuminate this blind spot for the first time. Surprise: for the electron,

The weak equivalence principle has been tested with fantastic precision, but always with grounded samples — as if one string of the gravitational violin is deliberately muted. The κ parameter quantifies whether acceleration depends on electric charge: it is the ratio of the difference in acceleratio