To advertise their new fiber optics Internet connection called hikari (which means light in Japanese), Japanese Internet provider au made this really cool ad featuring a Rube Goldberg machine that is powered by nothing but light and magnifying glasses…well and gravity too, of course.
A Rube Goldberg machine is an over-engineered contraption that is designed to perform a very simple task in a complicated way (usually using some kind of chain reaction). You could say that this epic creation works at the speed of light! Very impressive.
(Source: au on YouTube)
The sound design alone in that video was simply amazing. Put on some good headphones and listen to how wide the soundscape is. As an audiophile I was more impressed by that than the video, and that”s saying something because the video was insanely awesome.