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This video documents a rube goldberg machine that spans multiple storeys of a residential house, running from room to room, with transitions that include stairwalking slinkies, a computerized magnetic chess-set, and the piece de resistance, a cellphone that calls another phone elsewhere in the house, setting off a vibration ringer that triggers the next reaction. Must be seen to be believed.
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(Thanks, Richard!)
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.