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  1. Mechanisms (1982 Video)

    Subject
    Engineering
    Distribution
    Sale, Videocassette. U-matic, VHS. col. 10 min.

    Describes the operation of 21 different basic mechanisms which are driven from a single motor. These are: gears (spur, level, spiral, epicyclic, worm, rack and pinion), flat and vee belts, roller chain,...

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  2. Nomenclature of Complex Ring Systems (1980 Multimedia)

    Subject
    Chemistry
    Distribution
    Sale, Audiocassette. 20 min.; 38 slides. col.

    Deals with the basic principles of the naming and numbering of spiro compounds and of complex ring systems consisting of two or more rings fused together which may contain one or more hetero-atoms in the ring.

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  3. Linkage Mechanisms (2 Parts) (1979 Video)

    Subject
    Engineering
    Distribution
    Sale, Videocassette. U-matic, VHS. col. 27, 31 min.

    Shows linkage mechanism behaviour and to show the many different types of motion which can be achieved. Models are set in motion and their performance is briefly described. Part 1 consists of some 20...

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  4. Geophysical Surveying for Archaeology (1977 Multimedia)

    Subject
    Archaeology
    Distribution
    Sale, Audiocassette. 19 min.; 76 slides. col.

    Examines methods based on the electrical and magnetic properties of materials, whereby buried archaeological features can be located. Principles, instruments and methods of presentation of field data are...

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  5. Conservation in Archaeology: Laboratory Techniques (1976 Video)

    Subject
    Archaeology
    Distribution
    Sale, Videocassette. Standard formats. b&w. 32 min.

    Looks at the various processes of examination, cleaning and stabilisation undertaken in a modern conservation laboratory. Iron and wood are studied in detail. Note: Some controversial treatments are...

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  6. Conservation in Archaeology: Why is It Necessary? (1976 Video)

    Subject
    Archaeology
    Distribution
    Sale, Videocassette. Standard formats. b&w. 22 min.

    Second-year archaeological studies - conservation/chemistry.*

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  7. Radiocarbon Dating for Archaeology (3 Parts) (1976 Video)

    Subject
    Archaeology
    Distribution
    Sale, Videocassette. Standard formats. b&w. 26, 32, 23 min.

    1: Introdes radioactivity. An experiment using 56Mn shows how the decay of radioactive isotopes can be detected. Introduces the concept of half-life. Explains the theory behind radiocarbon measurements. 2:...

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  8. Techniques of Analysis in Archaeology (2 Parts) (1976 Multimedia, Video)

    Subject
    Archaeology; Chemistry
    Distribution
    Sale, Audiocassette. 22, 42 min.; 73, 80 slides. col. Videocassette. Standard formats. b&w/col. 37, 25 min.

    Part 1 explains the physical principles behind the technique and shows how different elements produce characteristic spectra and how these spectra can be used to identify elements. The apparatus used for...

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