This mug contains a miniature, battery-operated propeller that spins your beverage at 3,000rpms. No dirty spoons around the office, and no more cramped fingers from vigorous
stirring. (What? We like our coffee frothy, okay?) (hammacher.com)
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.