The “minute” on your phone is not a natural thing. Nothing in the sky divides an hour into 60 equal parts. Humans invented ...
Determining the passage of time in our world of ticking clocks and oscillating pendulums is a simple case of counting the seconds between 'then' and 'now'. Down at the quantum scale of buzzing ...
The most precise clocks ever built are now testing Einstein, hunting dark matter, and reshaping how we define time itself. In A Nutshell The world’s most precise clocks are changing how we understand ...
Researchers at the UK’s National Physical Laboratory (NPL) have created a tiny atomic fountain ...
This has now paved the way for a multi-ion optical ytterbium clock that combines the high accuracy of single-ion clocks with ...
Smaller version Illustration of a conventional atomic fountain clock (left) next to NPL’s miniature atomic fountain clock.