Particularly eager clock watchers can actually rig up ... [Cristiano Monteiro], you might be interested in the portable GPS-controlled time server he recently put together. The heart of the ...

The threat of GPS jamming extends beyond aviation. Without GPS, our lives would grind to a halt: in 2017, a government report ...

The study was published in Nature Photonics. Optical atomic clocks can improve time and location accuracy by a factor of ten, enhancing applications such as GPS systems, personal computers ...