While diesel engines don't need spark plugs, they do need air ventilation for proper combustion. This is a problem for vessels traveling underwater, such as submarines. Yet diesel submarines exist and ...

Diesel engines cannot work without oxygen, so how do diesel submarines operate when they're underwater? Their propulsion ...

What makes a diesel engine different to a regular gas engine, and is one better than the other?

Any certified gearhead knows that diesel engines do not use spark plugs. But why not? If power in an engine is created by combustion or explosion of flammable liquids, won't a spark plug in a diesel ...