You've heard that pistons have rings, but have you ever wondered why there are three? Here's how piston rings work together ...

Rotary engines differ from conventional ones in many respects — and one of them is the fact that they use two different spark ...

Internal combustion might as well be wizardry to me. I have a basic idea of how engines work and I’ve been wrenching on them since I was a teenager, so I get the gist of it, but my feeble brain still ...