Explore the Earth's Dipole Magnetic Field

 

If a strong magnet is inserted into a soft rubber globe, then the orientation of the dipole field at the surface of the globe can be investigated by placing staples at various locations.

Click For Larger View

 

I have written a page of information on the Earth's field and another to guide exploration of this model.  They are available in html, and pdf formats.  I learned of this model from Paul Doherty of the San Francisco Exploratorium.

Arbor Scientific sells this product as well.  You can order one from their site:

http://www.arborsci.com/Products_Pages/Magnetism/Magnetism2.htm

Back