Precise Demonstration Model Shows Earth�s Rotation
Electrically Maintained � Needs no Attention
Ideal Display Item for Science Rooms, Foyers, and Museums
This Foucault�s Pendulum Apparatus is a carefully constructed miniature version of Foucault�s device. Since the forces causing the precession are small, the effect is easily disturbed by other small environmental forces. To eliminate drafts, the pendulum is enclosed in a glass case, and the heavy vibration-damping base is equipped with leveling feet. The pendulum is electrically maintained to counter air resistance damping, and the swing amplitude can be adjusted using a potentiometer.