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 John Ericsson
invented the caloric (heat) engine, as well as a
steam condensor that allowed a steamer to produce
fresh water while at sea. He is best remembered,
however, as being the designer and builder of the
USS Monitor, a unique ironclad ship that
incorporated many elements still used in warship
designs today. |
 Robert
Fulton worked on developing a
practical submarine before turning his attention
to building the first commercially viable
steamboat. The result of this latter work was the
Clermont, which was successfully tested
on August 17, 1807. |
 John Philip Holland
launched his first successful submarine in 1881.
The company he founded ultimately became the
Electric Boat Company, which has subsequently
built the vast majority of the U.S. Navy's
submarines, as well as submarines for many other
nations. |
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