Not all outlet holes are the same, and there's a reason for that. The shapes (vertical slots, round holes, T-slots, etc.) correspond to specific electrical functions and safety features. Take the ...

You find yourself in an airport or hotel room in another country, and you really need to charge your phone, camera or game system. But what is that strange-looking outlet? It has round holes! And ...

When sizing up options for your next car, you may be figuring out whether to get an electric vehicle, only to discover there are a bunch of variations to consider — not just hybrids, but plug-in ...