16mm Filmography
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RADIO WAVES

Discusses the nature and history of radio waves, beginning with Hertz's discoveries in the 19th century. Explains the influence of the ionosphere on radio waves. Delineates the relationship between radio waves and the ionosphere, the earth's magnetic force and solar activity
Complete catalog record
Series: Planet earth series
Source: McGraw
Interest level: jh-sh-c-ad
Guide: Guide
Price: $90, rent $10
Format: sd b&w

More in Planet Earth Series

  1. Fate Of The Earth
  2. Force of Gravity
  3. Gifts From The Earth
  4. Tales From Other Worlds
  5. The Solar Sea
  6. Magnetic Force.
  7. Nearest Star
  8. The Hidden Earth 1960
  9. CHALLENGE OF THE OCEANS 1961
  10. FLORIDA AURORA 1961
  11. MAGNETIC FORCE 1961
  12. RADIO WAVES 1961
  13. RESEARCH BY ROCKETS 1961
  14. SCIENCE IN SPACE 1961
  15. SECRETS OF THE ICE 1961
  16. THE INCONSTANT AIR 1961
  17. THE SHAPE OF THE EARTH 1961

Related films

Sources

  1. Educational film guide. Supplements (1959-62) — title, year, creator, length, format, color, sound, description, catalog record
  2. Catalog of Classroom Teaching Films for Georgia Schools, No. 10 (Georgia Department of Education) — title, creator, length, color, description

Record added 2026-07-06 16:23:58