Inside a diesel engine's cylinder, compressed air raises the temperature to ignite injected fuel, and the resulting force drives pistons to power the vehicle's main gears. Chief to this combustion ...

A man cannot one day just decide to build a submarine, much less the first powered submarine, much less if that man is a writer. Yet that is just what Narcis Monturiol did. As a young firebrand of the ...

Summary and Key Points: China’s People’s Liberation Army Navy (PLAN) has reportedly launched its most advanced diesel-electric submarine, sparking interest and concern among naval analysts. Though ...

Submarines' top speeds are different when they're underwater than when they're cruising on the surface -- and not always in ...