Tiny MEMS gravity sensor could detect drug tunnels, mineral deposits and trigger a commercial revolution larger than MEMS motion sensors
A new device the size of a postage stamp can detect 1-part-per-billion changes in Earth’s gravitational field—equivalent to what the gizmo would experience if it were lifted a mere 3 millimeters. The technology may become so cheap and portable it could one day be mounted on drones to spot everything from hidden drug tunnels to …