Boing Boing (boingboing) wrote, @ 2017-08-23 16:36:00 |
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http://boingboing.net/2017/08/23/rube-go
http://boingboing.net/?p=542779
As relaxing, amusing and intriguing as any other: "an impressive Rube Goldberg machine with a 4-minute course. The beads move in a chain reaction divided into several more complex steps, including the one with a whiteboard that turns to release new balls positioned on the back side."