However, aluminum is tricky. The element is difficult to measure with lasers, as well as cool to absolute zero. But when ...

There's a new record holder for the most accurate clock in the world. Researchers at the National Institute of Standards and ...

The laser beam traveled 3.6 kilometers (over 2 miles) via fiber optic links to NIST, where a frequency comb (acting as a “ruler for light”) allowed the aluminum ion clock’s laser to adopt its superior ...

Nuclear clocks will be the most precise clocks in the world. They will lose only one second every 300 billion years—and someday they might fit in your pocket.

T he world’s first clocks were invented thousands of years ago, when the first human civilizations devised devices that tracked the sun’s movement to divide the day into intervals.

Atomic clocks are our most accurate timekeepers, losing only seconds across billions of years. But nuclear clocks could steal their thunder, speeding up GPS and the internet. Now, scientists have ...

World’s First Ultra-Precise Nuclear Clock Is Within Reach After Major Breakthrough, Researchers Say The technology, enabled by thorium atoms, could keep time more accurately than atomic clocks ...