The rainbow program consists of a series of simulations in colors, optics, waves and the physics of the rainbow. They're all active, i.e. the user can make changes. There is a thorough online help for all simulations and an number of exercises all through. The program can be installed on PCs with Windows 95 or newer versions of Windows..

The Rainbow is freeware.

The rainbow program

Carl Hemmingsen
Borgmestervaenget 22
DK 3600 Frederikssund