Quantum theory and Einstein's theory of general relativity are two of the greatest successes in modern physics. Each works ...

Astronomers studying cosmic rays in the 1930s stumbled into a magic moment. They identified a new particle, the muon, which had a negative electrical charge like an electron, but a mass between that ...

In a new Physical Review Letters study, researchers propose an experimental approach that could finally determine whether ...

Jetting off: particle imaging velocimetry image of a jet undergoing a deceleration 20 times greater than that of gravity. (Courtesy: CJM van Rijn et al/Physical Review Fluids) Spectacular upward jets ...