they have an
astounding 3 or
4 layer one of these jobbies at the
exploratorium.
They have a what looks like a
video projector above it so that they can
- turn individual layers on and off
- change layer colors
- change motion, by means of adusting the phase and frequency of the light
- blur
- ajust each of these factors for each color channel
And there are two
port holes in the side of the beast, so you can see the
works.
While I was marveling the true identity of the Exploratorim occured to me.