big ideas

On battery recycling and the future

JB Straubel, the Tesla co-founder and former CTO, is deep in the battery recycling game. Historically recycling compliance for batteries has been low, but that must change as the volume keeps increasing. “Why Amazon and Panasonic are betting on this […]

under the microscope

Imagine a battery-free cell phone. 

Engineers at the University of Washington have figured out how to create a phone that’s powered by radio waves. It works for calls and text messages. This could be used for cheap standalone devices in economically depressed areas, or as […]