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  1. Considering Crystals (1969 Video)

    Director
    Michael Crosfield
    Producer
    Peter Griffiths
    Subject
    Chemistry
    Distribution
    OUT OF DISTRIBUTION, Videocassette. VHS. col. 16 min.

    Looks at the way a molecular structure can build up through the repeated unit cell into a crystal lattice. Explains the main types of bonding which produce different types of crystal structure. Also...

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  2. Iron Smelters of Eremi, The (1963 Film)

    Director
    Michael Crosfield
    Subject
    Anthropology; Technology
    Distribution
    Film (16mm)

    Shows in the traditional methods of iron smelting and forging used by the Madi of Uganda. In Eremi only one old man knows how to smelt iron. A younger man goes digging some eight miles away for iron ore,...

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