Fraunhofer IAF presented the latest version of its compact integrated quantum magnetometer at World of Quantum in Munich. The diamond-based system is characterized by its robustness, high integration density, and measurement sensitivity. It offers new measurement possibilities for a wide…
GPS problems bedevil Denver light rail

Denver’s RTD light-rail system has bragged that “RTD is one of the few transit agencies, nationally, to meet Congress’ original Dec. 31, 2015 deadline” for instituting Positive Train Control (PTC). Yet reception of the GPS signals upon which their PTC…