Vision Senseii on Instagram: "🚨 A laser can measure your speed in less than half a second! Police rely on LIDAR speed guns—short for Light Detection and Ranging—to accurately track a single vehicle. The device emits a focused laser beam that reflects off your car, and by calculating how long it takes the light to return, it can measure your speed with astonishing precision, even down to fractions of a mile per hour. Unlike radar, which covers a broad area and can detect multiple vehicles at onc