The accelerometer developed by NIST researchers relies on infrared light to measure the change in distance between two highly reflective surfaces that bookend a small region of empty space. The proof ...

Introduction Have you ever played a video game with a controller that used motion controls? Do you ever wonder how sometimes a smartphone seems to "know" if you're moving? How do these electronic ...

Researchers have developed a technique for measuring speed and distance in indoor environments, which could be used to improve navigation technologies for robots, drones -- or pedestrians trying to ...