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A Rube Goldberg Machine Powered by Light and Magnifying Glasses
September 10, 2014 at 20:06:37 GMT+2 - permalink -Oh, joli, une machine de Goldberg fait avec de la lumière :)
- http://www.thisiscolossal.com/2014/09/a-rube-goldberg-machine-powered-by-light-and-magnifying-glasses/