Laboratory Tests of Gravitational Physics Using a Cryogenic Torsion   Pendulum
  Progress and plans are reported for a program of gravitational physics experiments using cryogenic torsion pendula undergoing large amplitude torsional oscillation. The program includes a UC Irvine project to measure the gravitational constant G and joint UC Irvine - U. Washington projects to test the gravitational inverse square law at a range of about 10 cm and to test the weak equivalence principle. 
E. C. Berg (1), J. H. Steffen (2), M. K. Bantel (1), P. E. Boynton   (2), W. D. Cross (1), T. Inoue (1), M. W. Moore (2), R....