Chinese scientists break a historic barrier and achieve the highest plasma density in a nuclear fusion reactor.

Pollutant particles with a smaller diameter, density, and flow rate can enter the deep lung, but large particles with a low density may also enter the deep airways, according to a study. Researchers ...

Physicists love to smash particles together and study the resulting chaos. Therein lies the discovery of new particles and strange physics, generated for tiny fractions of a second and recreating ...

Powder is a collection of single solid particles, which in most cases may be considered a basic unit. Powder is typically comprised of solid particles, interparticle voids, as well as open and closed ...