Back in September, I blogged Quilty1987's mesmerizing YouTube tutorial on making weird, erratically shaped gears that really mesh and spin. At the time, I pondered what these would look like if they were part of a larger, more ambitious project. Now I know: here's another Quilty1987 (AKA Clayton Boyer) video of several geared creations that do improbable and wonderful tricks with teeth and spins.
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.