Earth, The: Its Magnetic Field

Extending millions of miles into space, the earth's magnetic field can be measured on the earth's surface in terms of declination, inclination, and intensity. Models and animation explain theoretical causes of the field, why it affects compasses and why the magnetic poles seem to have shifted over the eons.

Related films

Sources

  1. 16mm Filmography (legacy record) — title, format, sound, genre, description, catalog record