Focault Pendulum - Model

Purpose

To model the Foucault pendulum.

Equipment

Pendulum suspended from rotating table.

Suggestions

This can also be done more slowly in the lecture halls using the rotating stage as the rotating reference frame.

Images

d5-13

Description

The circular base can be rotated while the pendulum oscillates in a fixed plane in the frame of reference of the laboratory, thus showing the apparent rotation of the plane of the pendulum when viewed in the frame of reference of its base.

References

About Foucault Pendulums and How They Prove the Earth Rotates, A Scriptographic Study Unit, published by the Smithsonian Institution, Washington, D. C. Anthony P. French, The Foucault Pendulum, TPT 16, 61-62, (1978). Reynhardt, van der Walt, and Soskolsky, A Modified Foucault Pendulum for Corridor Exhibit, AJP 54, 759-761, (1986). F. Lestingi(Section Editor, Projection Pointers), A Projection Foucault Pendulum, TPT 12, 311, (1974). Don W. Miller and G. Wayne Caudill, Driving Mechanism for a Foucault Pendulum, AJP 34, 615-616, (1966). Haym Kruglak, Larry Oppliger, Rene Pittet, and Stanley Steel