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.