Electricity flows from the hot wire to the neutral wire — but only when the circuit is completed and the two are physically connected. That's what a two-prong plug does — with one prong ...

Not all electrical plugs in the US are the same. Some have grounding wires while others don't, and some have one of the top two prongs bigger than the other.

And less current allows for thinner wires. Since the copper that’s used for electric wires is expensive, higher voltage could save money. Round pins were another early innovation in plugs.

The ground connection is interesting. You’ll notice that on three-wire plugs, the ground pin extends further out from the insulated cord body by about 1/8″.

Aviation spark plugs come in two main types: massive electrode (durable, affordable, but shorter lifespan) and fine-wire (longer lifespan, better performance, but more expensive). Choosing the ...

Q: I got a pretty good shock from one of my Toyota Camry’s spark-plug wires. I didn’t think much about it at the time other than to never touch them again when the engine is running. Later I ...

Then place a power strip inside the drawer, run its cord through the hole, and plug it into the closest outlet. Or buy a charging station and keep it on a small table near your entryway.