Unlike conventional systems that use dedicated, expensive seismic instruments, Google's Android Earthquake Alerts system ...

Study reveals how the tech behemoth is using the motions sensors on phones to expand quake warnings to more countries.

Acoem ATD technology detects both the muzzle blast and the ballistic sound wave of a bullet in motion, allowing detection and location from a single sensor. At ISC-West, booth #7041, Acoem, a ...