Illustrations of radiation

United Kingdom, 1947

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Episode number 3 of Series “Transference of Heat”.
Explains how heat sources emit radiations both as heat waves or infra-red waves and as light waves; how objects absorbing heat radiations rise in temperature; how heat is produced in glass-houses and how such glass-houses are cooled; explains the effects of clouds on radiation from the sun; shows how the shape of the earth results in different concentrations of the sun’s radiation at the poles and at the equator.


production company

Realist Films






Black and White

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