Dihedral kaleidoscopes

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Date
1966
Summary
Uses mirrors at varying angles and colored geometric reflections to illustrate principles of symmetry operations.  Illustrates that mirror angles of  pi  over 2,  pi  over 3, and  pi  over 4 produce dihedral groups of order 4, 6, and 8 respectively and points out rotational subgroups.  Shows how, if three mirrors with dihedral angles of  pi  over 3 are set perpendicular to a plane, a true kaleidoscope is formed by each pair of angles.  Concludes with a series of colored illustrations of tessellation.
Publishers
International Film Bureau; Indiana University. Audio-Visual Center
Genre
Educational
Subject
Symmetry ; Algebra, Abstract ; Kaleidoscopes ; Geometry ; Mathematics
Collection
IUL Moving Image Archive
Unit
IUL Moving Image Archive
Language
English
Rights Statement
No Copyright - United States
Physical Description
1 Film (0:13:50); 16mm
Other Identifiers
IULMIA Film Database: 40000003261171; Other: GR00408374; MDPI Barcode: 40000003261171

Access Restrictions

This item is accessible by: the public.