The tools used include a miter box, grinding wheel, coping saw, drill, and a Dremel tool, of course. Without this mini lathe, all of these tiny wood pieces would have to be carved by hand.

University-grade centrifuges sell for about $2,000, but synthetic biology enthusiast and inventor Cathal Garvey figured out how to build one with a Dremel tool and a 3-D–printed wheel.