Smaller version Illustration of a conventional atomic fountain clock (left) next to NPL’s miniature atomic fountain clock.

That all changed on Feb. 11, 1939, with a letter to the editor of Nature – a premier international scientific journal – that described exactly how such a thing could occur and even named it fission.

Different atoms and ions possess characteristic energy levels. Like a fingerprint, they are unique for each species. Among ...

Nuclear weapons tests are among the most violent events humans can trigger, and that violence leaves fingerprints in the ...

Intense Laser and Nuclear FusionIn a collaborative study, Assistant Professor Jintao Qi (Shenzhen Technology University), Professor Zhaoyan Zhou ...

More than 40 researchers from international institutes collaborated to develop and implement a method that enables measurements with unprecedented precision. This sets new standards for theories and ...

Nuclear physics is the branch of science that examines the properties and behaviour of atomic nuclei, the densely packed assemblies of protons and neutrons held together by the strong interaction.

An international research team led by the Paul Scherrer Institute PSI has measured the radius of the nucleus of muonic helium-3 with unprecedented precision. The results are an important stress test ...

For two centuries, students have learned that heat flows and engines work according to rigid limits that no machine can beat.

Nuclear and plasma physics form complementary pillars in our understanding of the fundamental forces and states of matter. Nuclear physics investigates the structure, dynamics and interactions of ...