Magnets can attract or repel without even touching, but how does that happen? This video explains how magnetic fields work ...

During a "Commit to Caucus" rally at the North Iowa Events Center in Mason City, Iowa on Friday, Donald Trump still had a great deal of energy left after spending most of the afternoon railing against ...

Particle accelerators are often framed as exotic machines built only to chase obscure particles, but they are really precision tools that use electric fields and magnets to steer tiny beams of matter ...