(Passive InfraRed sensor) A device used to detect motion by receiving infrared radiation. When a person walks past the sensor, it detects a rapid change of infrared energy and sends a signal.

Through the use of sensors that are sensitive to other wavelengths, we can however avoid many of these issues. Short-wave infrared radiation (SWIR) is roughly the part of the electromagnetic ...

Spire Global, Inc. (NYSE: SPIR) ("Spire" or "the Company"), a global provider of space-based data, analytics and space services, was awarded a concept study contract by NASA's Jet Propulsion ...