Ask any pro and they’ll tell you that a thermos is the most important tool on the job site. The Klein insulated beverage holder keeps your beverage of choice—in this case, every tool guy’s lifeblood, coffee—hot and ready to go. The design, inspired by Klein’s soft-grip driver line, gives shaky, decaffeinated hands a chance to grip the precious elixir without spilling any. And it looks cool.
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.