Mechanisms of Ocean Tides

Synopsis: Composed entirely of animated diagrams, the film presents tidal definitions and tidal theory to an audience assumed to have no previous knowledge of tides. Using figures of the moon, sun and earth, spring and neap tides and semidiurnal and diurnal tides are explained in terms of tractive forces and the equilibrium tide. Modern theories of resonance are illustrated, starting with water waves in an oblong bowl and moving on to real tides in the ocean.
Language: English
Country: Great Britain
Medium: Film; Video; Film. 16mm. sd. col. 20 min. Videocassette. U-matic, VHS. col. 20 min.
Technical information: Black-and-white / Sound
Year of production: 1966
Availability: Hire (U-matic - HEFVL)
Sale (video - Univ Newcastle)
Notes: This film is a later revision of th 1966 film.
Uses: Marine interests among zoologists, botanists, geologists, civil and public health engineers, surveyors.
Subjects: Geography
Keywords: oceanography; tides

Name: Higher Education Film & Video Library
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Notes: Catalogue available from British Universities Film & Video Council.

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