Results

Exercise in Symmetry Determination, An (1996 Video)

Subject

Chemistry

Distribution

Sale

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Symmetries of the Cube (1972 Film)

Subject

Mathematics

Distribution

Film (16mm)

The symmetries of a square are exhibited as products of reflections. The octahedral group is studied via reflections produced by an octahedral kaleidoscope, and it is shown how the construction of these is...

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Development in the Sea Urchin ‘Psammechinus Miliaris’ (4 Parts) (1982 Video)

Subject

Biology

Distribution

Sale, Videocassette. VHS. col. 11, 10, 11, 12 min., 1996 sale: £25.00 (+VAT +p&p) each

4 (1978): Schematic animation and in vivo sequences demonstrate stages in the development of the coelom in the young pluteus and of the sea urchin anlage in the more advanced pluteus until readiness for...

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Cages and Negative Sodium Ions (1980 Video)

Subject

Chemistry

Distribution

Sale, Videocassette. Standard formats. col. 25 min.

In the 1970s Professor Jim Dye and his research group at Michigan State University succeeded, by using cryptands, in making alkali metal anions. Traces the story of their success and deals with elements of...

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Fundamentals of Organic Stereochemistry. Part 1 (1976 Multimedia)

Subject

Chemistry

Distribution

Sale, Tape-slide. Audiocassette. 40 min.; 30 slides. col.

Asymmetry, dissymmetry, and chirality; configuration; the use of perspective and projection ('saw-horse’, Newman, and Fischer) formulae for the representation of 3-dimensional structures in two dimensions....

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Curiouser and Curiouser (1980 Video)

Subject

Physics

Distribution

OUT OF DISTRIBUTION, Videocassette. Standard formats. col. 25 min.

Uses a science-fiction setting to illustrate the problem of distinguishing left from right. Discusses the violation of parity and the development of CP-invariance. Illustrates the Lee Yang theory of the...

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Geodesic Domes: Math Raises the Roof (1982 Film, Video)

Producer

David Nulsen

Subject

Mathematics

Distribution

Film (16mm)

Discusses whether dome size should influence its geometry; how chord factors are calculated; what geometric patterns govern the design, and how a list of materials is drawn up. Many mathematical concepts are...

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S343 Videocassette 1 (1990 Video)

Producer

Rissa de la Paz; David Jackson; Michael Peet

Subject

Chemistry

Distribution

Sale, Videocassette. Standard formats. col. 96 min., 1999 sale: £120.00 (+VAT +p&p)

1 (15 min): Close-up photography of colour reactions and colour of metal ions in solution. Titanium dioxide, tetrachloride, and reduction of titanium IV to III. Manganese ions from II to VII, and oxidation...

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Through the Looking Glass (1980 Video)

Subject

Physics

Distribution

OUT OF DISTRIBUTION, Videocassette. Standard formats. col. 25 min.

When a typical household scene is observed through a mirror, is there anything that enables you to know that you are not observing reality directly? Looks at the question of distinguishing between the mirror...

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Experiments on the Chick Embryo: Influences on Limb Outgrowth and Symmetry (1972 Film)

Subject

Biology

Distribution

Film (16mm)

Depicts removal of the apical ectodermal ridge at differing stages affecting the extent of limb outgrowth. Reversal of the wing-bud apex produces an extra hand. An extra wing tip forms when the zone of...

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