Internal combustion engines are incredibly complicated machines that many of us interact with on a daily basis, but don't completely understand. You get in your car, turn the key or push the start ...

Engine knock is the sharp, metallic sound that cuts through the hum of a healthy engine. At its core, engine knock is a problem of timing. In a knocking engine, parts of the air-fuel mixture don't ...

There's that relief that follows when power goes out and the sound of a generator kicks on. In just a few seconds, your lights are back, your A/C and fridge are up and running, and you don't have to ...