11/07/2017

Consumer & Gadgets

Exercise-coach watch has self-charging battery system

(Tech Xplore)—Self-charging smart watches are undergoing a crowdfunding campaign on Kickstarter. They really do mean self-charging; they have come up with a kinetic self sustaining battery system, according to a promotional ...

Engineering

Clean water that's 'just right' with Sandia sensor solution

Water utilities have a Goldilocks problem: If they don't add enough chlorine, nasty bacteria that cause typhoid and cholera survive the purification process. Too much chlorine produces disinfection byproducts such as chloroform, ...