Power of Optics

"In this commercial for au Hikari, one of Japan’s high-speed optical internet service providers, a Rube Goldberg machine is “powered” by a single beam of light that travels via mirrors, magnifying glasses, and reflective surfaces to burn through strings, melt ice, pop balloons, and brighten each smoky twist of physics along the way."

The  video  documents a long causal chain assembled of objects the same way as in The Way Things Go (German: Der Lauf der Dinge), an art film by the Swiss artist duo Peter Fischli and David Weiss. 

Via http://thekidshouldseethis.com/