My newest project in a while! A (reasonably) simple Rube Goldberg machine. Here's how it works: a) The first ball rolls down the slope and onto the first wheel. b) The first wheel turns, moving the second and third wheels. c) Ball 2 falls into the water. d) The splash pushes the box onto the rollers. e) The box is pushed into the light switch, turning on the light. IF the water splashes prematurely, start over and wait. Repeat if neccesary.
