Clocks began as simple timekeepers, but some became landmarks through the use of sundials and now have reached the majestic stage set by the architecture of clocks. In addition to serving as mere ...

Add Yahoo as a preferred source to see more of our stories on Google. (koto_feja/Getty Images) A breakthrough in chronometry decades in the making could redefine the limits of how we keep time. Using ...

For decades, nuclear clocks have existed as one of physics’ most tempting promises. A device that could keep time even more accurately than today’s best atomic clocks. Now, two independent research ...

Earth’s changing spin is threatening to toy with our sense of time, clocks and computerized society in an unprecedented way — but only for a second. For the first time in history, world timekeepers ...

Learn about NIST-F4, the latest cesium fountain clock that now stands as one of the most accurate timekeepers in the entire world. The universal need to be on time keeps everyone on the move, shaping ...

Yuan-Yu Jau is on a quest to build the world's smallest atomic clock, a device that measures time with extreme accuracy. If successful, he and his team at Sandia will have made one smaller than a ...