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PENDULUM WITH LIQUID FILLER-INSTRUMENT TO DEMONSTRATE DIURNAL ROTATION OF THE EARTH
AIR FORCE SYSTEMS COMMAND WRIGHT-PATTERSON AFB OH FOREIGN TECHNOLOGY DIVISION
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The contention is made that a load in a pendulum that has both liquid and solid components permits construction of a parametric pendulum with liquid filler. The liquidsolid load consists of masses which behave differently under the forces of the Coriolis effect. A pendulum is described that is in effect a compass, giving indication of the direction that is perpendicular to the true geographic meridian. The pendulum has a shell made of a ping-pong or tennis ball, fillers of mercury and water, buffers of rubber, and a suspending thread.
APPROVED FOR PUBLIC RELEASE