Discusses the electromagnetic spectrum, the history of its discovery, the theory and research done on radio waves and the ionosphere which girdles the earth. Explains the ionosphere, how it is explored and used for radio communications, and the new science of radio-astronomy which is probing far beyond our galaxy.
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How to watch
Collection
In ACMI's collection
Credits
Collection metadata
ACMI Identifier
308586
Language
English
Subject categories
Advertising, Film, Journalism, Mass Media & TV → Radio waves
Climate, Environment, Natural Resources & Disasters → Earth
Communications, Infrastructure, & Transport → Radio waves
Education, Instruction, Teaching & Schools → Science - Study and teaching
Educational & Instructional → Educational films
Educational & Instructional → Instructional
Mathematics, Science & Technology → Earth
Mathematics, Science & Technology → Earth sciences
Mathematics, Science & Technology → Electromagnetism
Mathematics, Science & Technology → Galaxies
Mathematics, Science & Technology → Radio astronomy
Mathematics, Science & Technology → Radio telescopes
Mathematics, Science & Technology → Radio waves
Mathematics, Science & Technology → Science - Study and teaching
Mathematics, Science & Technology → Space sciences
Sound/audio
Sound
Colour
Colour
Holdings
16mm film; Access Print (Section 1)