By using a rare thorium nucleus as a timekeeper, physicists have demonstrated the first working nuclear clock, a device that ...
But physicists have long dreamt of even better clocks that run on atomic nuclei, which are less sensitive to environmental ...
At the dawn of the nuclear age, scientists created the Doomsday Clock as a symbolic representation of how close humanity is to destroying the world. On Tuesday, nearly eight decades later, the clock ...
Most clocks, from wristwatches to the systems that run GPS and the internet, work by tracking regular, repeating motions. To build a clock, you need something that ticks in a perfectly repeatable way.
When it comes to navigation in outer space, keeping precise time is incredibly important, that's why NASA needs to use ...