Learning on ScreenElectromagnetic Waves (2 Parts)
- Synopsis
- Part 2: Demonstrates the determination of velocity, refraction, dispersion, diffraction, interference, polarisation and absorption of electromagnetic radiation. Sequences illustrate absorption by the earth’s atmosphere and the use of microwaves for communication. Typical gas and solid state lasers are described with the help of animated diagrams.
- Language
- English
- Country
- Great Britain
- Medium
- Video; Videocassette. VHS. col. 20, 22 min.
- Year of production
- 1964
- Availability
- out of distribution
- Documentation
- Teaching notes available.
- Uses
- 2nd-year courses in the history of science/physics.*
- Subjects
- Physics
- Keywords
- electromagnetism; history of science; lasers; microwaves
Credits
- Director
- Alex Strasser
- Producer
- Alex Strasser
Sections
- Title
- Discovery and generation of electromagnetic waves, The
- Synopsis
- Part 1: Outlines the history of the discovery of the electromagnetic spectrum. The generation of frquencies from radio to gamma waves is shown by classical experiments and animated diagrams. Introduces both wave and photon concepts. Concludes by illustrat
- Title
- Properties and behaviour of electromagnetic waves
- Synopsis
- Part 2: Demonstrates the determination of velocity, refraction, dispersion, diffraction, interference, polarisation and absorption of electromagnetic radiation. Sequences illustrate absorption by the earth's atmosphere and the use of microwaves for commun
Production Company
Sponsor
- Name
Educational Foundation for Visual Aids
- Notes
- 2006 - titles now possibly in the Elsbury Images archive collection (0117 965 5952, e-mail: david@elsbury61.freeserve.co.uk)
- Name
Mullard Ltd
Distributor
- Name
Focal Point Audio Visual Ltd
- cservice@focalpointvideo.co.uk
- Web
- http://www.focalpoint.f9.co.uk/ External site opens in new window
- Phone
- 023 92665249
- Fax
- 023 9269 5723
- Address
- 251 Copnor Road
Portsmouth
Hants
PO3 5EE - Notes
- Mail order retailer of resources for schools.
- 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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