Previously known as the Positioning, Navigation, and Timing Assessment Experiment (PNTAX), the sixth annual APEX event was held at the U.S. Army’s premier military test range, designed to replicate ...

This free app lets you play around with smartphone sensors you probably didn't know existed.

Magnetic sensors quietly underpin everything from smartphone compasses to the stability systems that keep electric vehicles on the road, and the race to make them smaller, faster and more sensitive is ...