topology | Boing Boing

topology Here's a confounding topological curiosity Mark Frauenfelder
letterlocking Letterlocking: the long-lost art of using paper-folding to foil snoops Cory Doctorow
topology Acoustic meta-material: a shape that reflects sound but passes light and air Cory Doctorow
drone-paws Origami hand: "a disposable robot hand" made from folded paper Cory Doctorow
fidget spinners on steroids Twisty Vase, meet Useless Machine Cory Doctorow
stereoscopy Fold-flat furniture looks like isomorphic illustrations when it's collapsed Cory Doctorow
untanglers Detangling enthusiasts trade snarled yarn to tease back into order Cory Doctorow
topology Engraving a Klein bottle with an Eggbot Cory Doctorow
fucking magnets how do they work Gravity-defying levitating superconductor on a magnetic Möbius strip Cory Doctorow