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

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 ...

In the final analysis, by showing that 10 heterogenous clocks across three continents could agree with each other to within a ...

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

We tend to think of the US as the atomic bomb’s creators. But we’re ignoring some crucial figures, as Gareth Williams’s superb book argues ...

Knowable Magazine reports on attosecond science, revealing how scientists study atomic interactions at unbelievable speeds to ...

Rhode Island observes Victory Day on the second Monday of August, commemorating the end of World War II. The holiday has ...

The science behind why the Earth will spin just a little bit faster on July 9, July 22, and August 5, this year.

World War II or the Second World War, was a global conflict that lasted from 1939 to 1945. The vast majority of the world's ...

Twenty years ago, the adoption of the Amendment to the Convention on the Physical Protection of Nuclear Material (A/CPPNM) marked the start of a new era in international efforts to counter the risk of ...

In the wake of recent strikes by Israel and the United States on Iranian cities, military sites and nuclear facilities, a ...

So far, the shortest day ever recorded was July 5, 2024, when Earth rotated 1.66 milliseconds faster than usual. This year, ...