science
Guy Tries to Build a Mini Fridge With Elastic Bands and It Works

Elastic bands can become colder than room temperature through sheer mechanical force. Stretching one heats it up (duh) but letting it contract cools it below its starting temperature. Let that weirdness sink in for a moment. Read More >>

3d printing
3D-Printed Gatling Gun Fires 48 Rubber Bands in Mere Seconds

Matthew Davis’ Arcus is officially the most impressive thing we’ve ever seen come out of a 3D printer. Sure, cheap prosthetics and replacement body parts are important uses of the technology, but this spinning rubber band blaster is what finally makes us want to put a 3D printer on our desks. Read More >>