Mirror in the sky

Duration: 21 min

Year Published: 1958

Creator: Educational Foundation for Visual Aids, Great Britain

Format: 16mm

Color: B&W

Sound: Sound

Description: A story of research and discovery which, through the work of such scientists as Hertz, Marconi, Heaviside and - more particularly - Sir Edward Appleton, has led to the development of modern radio-communications. Some of the techniques which owe their origin to Appleton’s concept of the ionosphere are now being applied to radar, to reliable world-wide radio links, and more recently, to the science of radio-astronomy.

Metadata Source:Educational film guide. Supplements (1959-62)