Robert Dicke and the Naissance of Experimental Gravity Physics » eorvos
The photograph in the upper left shows Eotvos and colleagues, likely measuring
gravitational field gradients. On the right is an illustration of features common to the two repetitions of the Eotvos experiment in Dicke’s group: the balance placed in a vacuum, the torque detected remotely, and the instrument buried. On the lower left is a sketch of the torsion balance used in the static version (in an early design)
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