Magnets are found in motors, speakers, sensors, and countless everyday devices. This video explains how magnetic fields work and how magnets interact with electricity to control motion, force, and ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. CHRISTIAN MONTERROSA/AFP via Getty Images During a "Commit to Caucus" rally at the North Iowa Events Center in Mason City, Iowa on ...