Add Yahoo as a preferred source to see more of our stories on Google. Years ago, the Insane Clown Posse proposed a thought-provoking question: Magnets, how do they work? Donald Trump's recent rant at ...

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 ...

Why would you want to detect metal? Oh, I don't know … maybe you want to find some gold in the ground. You could dig up ALL the dirt, or you could find the location that has the gold before you dig.

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 ...