Invisible Force, The
- Synopsis
- The story of magnetism. Illustrates the ways in which scientists found that magnetism existed and how, through research, industry has revealed more of the nature of this force. Discusses the development and manufacture of some of the most efficient materials - Magnadur, Ticonal and Ferrox-cube - and indicates the diversity of applications in which they are used.
- Language
- English
- Country
- Great Britain
- Medium
- Video; Videocassette. VHS. col. 19 min.
- Year of production
- 196
- Availability
- Hire
Sale - Uses
- 1st-year courses in physics and the history of science.*
- Subjects
- Physics
- Keywords
- history of science; magnetism
Production Company
Distributor
- Name
National Education Video Library
- Contact
- John Lovell
- tryfannevl@aol.com
- Phone
- 01286 676001 or 07768 105467
- Fax
- 01286 676001
- Address
- Arfon House
Bontnewydd
Caernarvon
Gwynned
LL54 7UN - Notes
- Formerly the National Audio Visual (Aids) Library. No longer holds 16mm material. Retains the negatives and copyright to the EFVA material, but have no viewing copies. Video only. (1/97) Alternative address might be Arfon House, Bontnewydd, Caernarvon, Gwynned LL54 7UN Telephone/Fax 01286 676001
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