2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/33626In this talk I will describe some recent results on the sensitivity of resonant mass detectors shaped as a hollow sphere to scalar gravitational radiation. Detection of this type of gravitational radiation will signal deviations from Einstein's gravity at large distances. I will then discuss a class of experiments aiming at finding deviations from Einstein's gravity at distances below 1 cm. I will review the main experimental difficulties in performing such experiments and evaluate the effects to be taken in account.15 pages, 1 figure, talk delivered at the congress: Gravitational Waves: A Challenge to Theoretical Astrophysics, Trieste June 2000 Addition of a referenceGeneral Relativity and Quantum CosmologyHigh Energy Physics - Theorytext