How is matter different from mass? These and other questions about the deepest levels of physics, answered inside.

Many of you may have probably heard or read about the expression that you are “nothing but matter in motion”. This is a curious metaphysical statement. It may appear logical to some and illogical to ...

Press dispatches from California Institute of Technology last week described “the creation of matter out of pure motion.” The impression given was that this was a brand new accomplishment ...

Nanoparticles—the tiniest building blocks of our world—are constantly in motion, bouncing, shifting, and drifting in ...

If a cat is simply a mechanical system that obeys Newton’s rules of matter in motion, it should land on its back. (OK, there’s some technicalities — like this should be done in a vacuum, but ...

Critters in motion. Physics applies to animals in action over a wide range of spatial scales. At the smallest end of the range, attractive forces between nearby atoms facilitate the ability of ...