While standard receptacles typically use three wires -- hot, neutral and ground -- you'll occasionally find 2-prong outlets in older homes. Since this type of outlet lacks a ground connection, the ...

In our modern world, electricity is literally everywhere, easily assessible from a 110-volt outlet. That’s fine for running things like laptop computers and televisions, but when it comes to electric ...

From iPhones to ultrabooks, the latest technology is often described as “sexy”. That probably says more about the fetishes of reviewers than the products themselves, but even the most peculiar geek ...

In the past, it was rarely used for anything other than powering the onboard cigarette lighter; today, it’s an indispensable source of power for countless electronics, including our smartphones.