If you've ever stared at the holes in an electrical plug and wondered why they exist, you're not alone. Like an industrial-age kōan, the answer is anything but straightforward. A quick search will ...

If you've ever travelled overseas, then you're likely already familiar with how many different types of electrical plugs and outlets there are. In the US, the sockets are usually two thin vertical ...

While GFCI outlets are commonly used in homes for safety reasons, there are some things you should still never plug into them ...