This demonstration uses a gyroscope (a bicycle wheel works well), string, and a turntable (optional) to show how the equatorial bulge of Earth causes precession. By balancing the spinning bicycle wheel on one hand, and pulling a string attached to the top axle with the other, the axis of the wheel traces out a circle (precesses). The site also explains how the moment of inertia is related to torque and precession.
Intended for grade levels:
Type of resource:
No specific technical requirements, just a browser required
Cost / Copyright:
Copyright and Other Restrictions Information is Unknown
DLESE Catalog ID: DLESE-000-000-006-235
This resource is part of 'Demonstrations of Geophysical Principles Applicable to the Properties and Processes of the Earth's Interior'
Resource contact / Creator / Publisher:
Author: Jeffrey S. Barker
Geological Sciences and Environmental Studies, Binghamton University