Have you ever wondered how a magnetometer works? We sure have, which was why we were happy to stumble upon this article on simple homebrew fluxgate magnetometers. As [Maurycy] explains, clues to how a ...

Chinese researchers have completed what they describe as a first deep-sea field test of a diamond-based quantum magnetometer, a device that could one day help detect the faint magnetic signatures of ...

Ghost Murmur was described as a futuristic CIA tool that could detect a heartbeat from vast distances. Physicists say the ...