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Period: Jan 5, 1420 to Jan 5, 1460
prince henry the navigator
He was responsible for the early development of European exploration and maritime trade with other continents. -
Benjamin Franklin
was one of the Founding Fathers of the United States -
Challenger expedition
was a scientific exercise that made many discoveries to lay the foundation of oceanography.
Scot, Charles Wyville Thomson -
sonar
Alexander Behm
SOund Navigation And Ranging -
bathysphere
is a spherical deep-sea submersible which is unpowered and is lowered into the ocean on a cable.
The first bathysphere was devised by Otis Barton -
matthew maury