Alternative post title: The Good, the Bad & the Downright Crazy.

Mail-by-rocket, cat pianos, astrolabes, Inca quipu knots and musical fingers. Seems like a fairly random collection of things, doesn’t it? They do have one thing in common, though. They’re all dead forms of media; either because they’re downright silly or impractical – like the mail-by-rocket and cat pianos – or they’ve outlived their time and usefulness – like the astrolabe and the quipu knots. All these objects and more can be found in a wonderful little book called A Collection of Many Problems.