lessons that use compact disc

title description rating post date author
Benham's Top

In 1894, Charles Benham invented a top with a black and white pattern that produces a sense of color when it spins. This lesson contains instructions and materials for producing your own Benham top, as well as a short explanation behind the false color perception.

Altho...

4
Average: 4 (5 votes)
3 Dec 2013 guy