Using a diamond needle tipped with a single electron, physicists have found seemingly impossible one-sided magnets swirling along the surface of hematite. The rules of physics (the ones we know of, ...

Somewhere lurking in the universe, most physicists agree, are minuscule magnets with just one pole — a north or a south, but not both. Scientists haven’t spotted any yet, but a new experiment offers ...

True wilderness, if you can find it, will help clarify any question about a piece of equipment’s functionality. On a trip to Patagonia this winter, I tested my gear like never before. Shadowing ...