Rainbow Bits is a sphere of 642 CD-ROMs, over 6 feet in
diameter, commissioned by Carlo Sequin for the Computer Science building of
U.C. Berkeley. It is based on the
propello-icosahedron, which consists of 20 equilateral triangles
and 60 tri-equiangular kites.
This close up image better illustrates the colorful holographic
surface of these disks. It is suspended from a chain which allows it to rotate
slowly with the air currents, and the visual effect constantly changes with
the lights, viewer, and sculpture position
The atrium has four sets of spotlights which are controlled by dimmers
adjacent to the sculpture. Anyone can adjust them to produce a variety
of effects. The next image shows that at certain settings, a great many
shadows and reflections are projected on the surrounding walls. The result
is very dynamic as the sculpture slowly rotates.
These are the same holographic disks used in my
propello-octahedron sculpture at Princeton, provided by Katherine Cochrane
of the CD-Info Company.
copyright 1999, George W. Hart