A clock built from thorium-229 has crossed an important line, from a long-discussed concept to a working device. The shift ...
NEW PHILADELPHIA — The Seth Thomas clock at the Tuscarawas County Courthouse has been keeping the time for 134 years, but now the historic mechanism is in need of some repairs. Commissioners recently ...
How does a clock become precise enough to guide a spacecraft across interstellar distance without drifting a single second ...
Atomic timekeeping plays an essential role in modern infrastructure, from transportation to telecommunications to cloud computing. Billions of devices rely on the Global Navigation Satellite System ...
WWV signals can be difficult to tune outside of certain hours and weather conditions. It's also fairly difficult to find WWV recievers that can easily plug into computers that aren't expensive bespoke ...
Optical atomic clocks can increase the precision of time and geographic position a thousandfold in our mobile phones, computers, and GPS systems. However, they are currently too large and complex to ...
RF absorption and PLL phase calibration help phased-array subsystems reduce clock spurs while preserving spectral purity and ...