Testing the Equivalence Principle on Earth and in space

•Dicke: Eötvös tests lack frequency modulation and zero check Þ test for UFF in the field of the Sun (rotation of the balance with the Earth provides 24-h modulation and zero check..)® @ 10-11 (Roll et al., Ann. Phys. 1964)

Where are we? The ground tests after Eötvös

•Braginsky & Panov (Sov. Phys. JPT 1972): @ 10-12

•“Eöt-Wash” (PRL 1990, 1994, 1999….): @ 10-13

Fischbach et al. (PRL, 1986) …