Sensors built into cellphones could detect hazardous chemicals and spread the word to people nearby
By Bjorn Carey
Posted 06.04.2010 at 3:32 pm 1 Comment
Your smartphone can post Twitter updates and find late-night pizza. But warn you of a hazardous chemical spill? Soon there will be an app for that too. The Department of Homeland Security is working on technology that allows cellphones to double as chemical detectors.
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.