Light Waves Making of
The finished sculpture is documented over here.
The sculpture recreates an optical effect (caustic).
photo credits
It also has a life of it’s own and reacts to the sounds in the room.
Brain: Arduino microcontroller.
Ear: Electret condenser microphone with a simple amplifier.
Hand: An old printer motor rotates excentrically and shakes the bubble to create ripples.
Some inaccurate sketches:
And because you scrolled so far you’ll get to look at some pretty and pretty funky caustic experiments: