That little spark is what ignites the mixture and pushes the piston back up. The other type of combustion engine is a ...

Unlike cars, which have their engines placed at the front or rear of the cabin, boats have four basic types of engines. These ...

They're also more fuel-efficient than their turbojet counterparts. As for similarities, both types of engines draw air into a compressor, the beginning of the engine's core, increasing the air's ...