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Symmetry elements and symmetry operations of molecular point groups are defined and discussed. Slides of three-dimensional models are used to illustrate the various elements and operations.
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...
Show the use of the polar planimeter, a small mechanical device for the measurement of area.
An animated film exhibiting the relationship between a carom - a ball rebounding from a wall - and a reflection. This principle is used to solve elementary geometric inequalities leading up to an exploration...
Investigates the Pythagorean theorem through inductive experimentation as well as through formal deductive proof. Through the use of animation the student watches triangles continually change. Discusses the...
Philip Stapp was one of the greatest animators working in the 1950-1975 era, using stylized, often pointillist abstract imagery, in a floating world sometimes surrealist, at other times reminiscent of...
Properties of four-line conics shown in animation.*
Professor A S Besicovitch solves the problem of the minimum area needed to turn a unit horizontal length in the plane so that its direction is reversed. He shows that it can be done within an arbitrarily...
A series of videotape-and-workbook modules that explore basic topics in GCSE and A-level mathematics, using live action, music, special effects, and computer animation. Each module consists of a videotape...
A 20-hour course produced by the Open University and made available free online (i.e. does not lead to a qualification). It uses the geometric concept of symmetry to introduce some of the basic ideas of...
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