Human-made microbeads don’t always go with the flow. Under certain conditions, the artificial particles can align themselves with a fluid’s flow and then swim upstream, researchers report May 1 in ...

But such measurements are notoriously challenging: the instruments used are themselves governed by quantum laws, and their interaction with particles can alter the very properties they are meant to ...

A new particle detector called PLATON could replace millions of tiny detector components with a single block of ...

Scientists have observed a unique particle that moves easily one way, yet resists at 90 degrees. These semi-Dirac fermions were observed using their energy signature in a topological metal. Particles ...

Atmospheric and climate scientists show that biological particles may induce rain events that could contribute to flooding and snowstorms, owing to their ability to precipitate ice formation in clouds ...

In new research, scientists find that flocks of birds may become ordered after a disordered start. The way flocks and other “collective motions” form has eluded scientists for a long time.

Scientists discovered microscopic magnetic particles in most bee species examined. This finding suggests a widespread ...

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