Jed from HackLab wrote code that tunes the motors on a laser cutter so that it plays music -- here it is playing the Super Mario theme. This is slightly too perfect, leading me to wonder if it's not just some video of a laser cutter with a flanged-out version of the theme cut into the soundtrack. But hell, I want to believe.
Read more in Music at Boing Boing
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.