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

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 ...

Submarines are among the most sophisticated vehicles that humanity has ever developed. Their capability to navigate both the ocean surface and deep waters, their capacity to operate silently, and ...