Changing bits in a table-mounted router is often an exercise in futility—especially without a (pricey) flip-top table. The poor-man's solution: a bent router wrench that easily snags the collet with your router still mounted in the table. It’ll save you tons of time and hassle.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.