Most modern submarines are nuclear-powered, allowing them to remain submerged and running for a long period of time, with some able to be fully functional for 20 years without the need to refuel.

All that is to say that, historically, U-boats and submarines of similar vintage used to be quite slow. But modern submarines, despite the added friction of being surrounded by water, are actually ...

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The modern submarine is capable of far more operations than its predecessors. In addition to conducting reconnaissance ...

This incredible map shows every submarine cable in the world, many of which have become a real worry as threats to sever ...

Sinkings of modern submarines have always resulted in the discovery of the dead clustered near the exits, the result of desperate efforts to escape the cold metal coffins; to sit silently and ...

Bill Normark pioneered work on "modern" submarine fans and canyon-channel systems from observations of the seafloor offshore southern California, USA, and Baja California, Mexico (Normark 1970).

The Hangor-class submarine, which is part of the eight such ... This is in addition to four modern naval frigates China supplied to Pakistan in the last few years as part of its efforts to boost ...

The Hangor-class submarine, which is part of the eight such submarines to Pakistan in a deal with around USD five billion, was launched in Wuhan, China's Hubei Province, official media here ...

The boat would be driven under the surface by forward momentum (as are most modern submarines). When the rowers stopped rowing, the craft would slowly rise. Reports that Drebbel's patron ...