MIT researchers have created a new underwater sensor and communication system that doesn’t require batteries, and barely uses any power at all. This could help set up an underwater Internet of ...

Sensor Sense: Optical data transmission Sept. 13, 2007 Optical data transmission (ODT) offers a means of sending data between moving objects without some of the drawbacks associated with radio ...

Quantum Sensor Breakthrough Paves Way For GPS-Free Navigation The main problem wasn’t weird subatomic physics. It was finding a simpler way to maintain a vacuum.