AOL

A Chip that Keeps Time (Almost) Like an Atomic Clock

For decades, atomic clocks have provided the most stable means of timekeeping. They measure time by oscillating in step with the resonant frequency of atoms, a method so accurate that it serves as the ...

Ytterbium atomic clock could open a new window on fundamental physics

For the first time, an international team of physicists has successfully harnessed a rare orbital transition in atoms of ...

How ultraprecise ‘nuclear clocks’ could transform timekeeping

Physicists are getting closer to creating a long-sought ‘nuclear clock’. This device would keep time by measuring energy transitions in the nuclei of atoms and could become the ...
Gizmodo

Scientists Built Tiny, Portable Atomic Clocks—and Naturally, They’re Headed for Drones

This breakthrough in precision timing is about the size of your fingernail and only loses one second every 30,000 years. Reading time 2 minutes This tiny cube fits on the tip of your finger and also ...

China builds ultra-precise clock accurate to 1 second in 30 billion years

The clock itself is what’s known as a strontium optical lattice clock. Researchers in China have built one of the most ...