Try this one:
ELECTROMAGNETISM
More:
PRELINGER ARCHIVES keyword: SCIENCE
And for cult films from 1950s 5th-grade classrooms, see:
AV GEEKS ARCHIVE
(from
(((((((((((((((((( ( ( ( ( (O) ) ) ) ) ))))))))))))))))))) William J. Beaty SCIENCE HOBBYIST website snipped-for-privacy@eskimo.com