All At Sea: Gloria Two

Series

Series Name: Living Tomorrow

Issue

Issue No.

308

Date Released

1983

Length of issue (in feet)

992

Stories in this Issue:

Story

Story No. within this Issue

2 / 6

Summary

COI Synopis - In this programme, we look at what the sea can offer us in terms of energy, food and minerals. It also examines its awesome power and offers some solutions for safety at sea. The sea has many mysteries; but, Gloria, a kind of sonar camera, is helping to unravel one - the geology of the sea-bed. Slung beneath a ship, Gloria’s transducers fire pulses of sound, in thin slices, at the sea-bed. The time delay and strength of the returning signal, when re-converted to electrical impulses on board ship, can be used to make an image. Recorded on tape and development in a mobile darkroom, a long, linear picture of the hills and valleys of the sea-bed begins to appear.

Keywords

Communications; Science and technology; Engineering; Marine

Written sources

COI Microfilm Roll 55 [BFI National Archive] Used for synopsis

COI Reference

MI 1458/308

Credits:

Sponsor: Central Office of Information (COI)
Sponsor: Foreign & Commonwealth Office
Cutter: R.I. Phillips

This series is held by:

Film Archive

Name: British Film Institute (BFI)
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Notes: The BFI National Archive also preserves the original nitrate film copies of British Movietone News, British Paramount News, Empire News Bulletin, Gaumont British News, Gaumont Graphic, Gaumont Sound News and Universal News (the World War II years are covered by the Imperial War Museum).
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