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

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

A diesel engine is simultaneously incredibly simple and incredibly violent, using compression as a means of ignition. This is because of the properties of diesel fuel: Namely, diesel is less volatile ...

While the purpose of a diesel engine is the same as a conventional one, to carry your car along the roads, there are several differences in how a diesel engine operates. From the fuel that it uses to ...