racket encryption video 2/4 --- dissection
Channel: Danny Heap
Date: 2012-05-29

Video from http://www.cdf.toronto.edu/~heap/racket_lectures.html uses elephants, a riot of colours.  We can list the colours, get at the red, green, blue, and opacity intensities, and create new colours based on old ones.  Entirely new elephants can be coloured by basing new colours on old.   See also:

www.cdf.toronto.edu/~heap/Racket/encryption.html    More videos:
www.cdf.toronto.edu/~racket_lectures