British Universities Film & Video Council

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  1. Ion Implantation: ‘The Invisible Shield’ (1994 Video)

    Subject
    Engineering
    Distribution
    Sale, Videocassette. Standard formats. col. 13 min.

    An introduction to surface treatment of metal tools by ion implantation. This technique modifies the tool surface, improving the wear, corrosion resistance and frictional properties. The SPRINT project...

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  2. Describing Matter: A Macroscopic Approach (1986 Video)

    Producer
    Ted Smith
    Subject
    Physics
    Distribution
    OUT OF DISTRIBUTION, Videocassette. Standard formats. col. 24 min.

    The PVT (pressure, volume, temperature) surface of any substance provides a wealth of information on its properties in the solid, liquid and gas phases. Illustrates the power and importance of the PVT...

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  3. Classifying Surfaces Geometrically (1984 Video)

    Subject
    Mathematics
    Distribution
    OUT OF DISTRIBUTION, Videocassette. Standard formats. col. 23 min.

    When surfaces are classified algebraically, in terms of edge equations it is clear that there are infinite numbers of surfaces. But what do they all look like geometrically? Shows that all of them, except...

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  4. Topological Surfaces (1984 Video)

    Subject
    Mathematics
    Distribution
    OUT OF DISTRIBUTION, Videocassette. Standard formats. col. 24 min.

    Why is it ridiculous to draw a map of the earth on a torus (the surface of a solid ring)? The earth is not a perfect sphere, yet a map drawn on a perfect sphere is acceptable. Shows that there are an...

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  5. Hunting the Hump: Partial Differentiation (1982 Video)

    Subject
    Mathematics
    Distribution
    OUT OF DISTRIBUTION, Videocassette. Standard formats. col. 24 min.

    Looks at where the peaks and troughs are to be found on a surface corresponding to a function of two variables. Explores the function f(x,y)=xy(1-x2-y2). The general shape of the surface can be observed, the...

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  6. Quadric Surfaces (1979 Video)

    Producer
    Martin Wright
    Subject
    Mathematics
    Distribution
    OUT OF DISTRIBUTION, Videocassette. Standard formats. col. 25 min.

    Equations of the standard form ax2 + by2 + cz2 = constant represent central quadric surfaces. The family of such surfaces is considered, particularly ellipsoids and single and double sheet hyperboloids....

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  7. Fixed Points (1969 Film)

    Director
    A N Feldzamen
    Subject
    Mathematics
    Distribution
    Film (16mm)

    Professor Lefschetz describes how his ‘magic number’ is applied to determine whether a surface has the fixed-point property i.e. that a continuous transformation must leave at least one point of the...

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