Franklin's map of the Gulf Stream, 1786

Franklin's map of the Gulf Stream, 1786

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Credit: LIBRARY OF CONGRESS, GEOGRAPHY AND MAP DIVISION/SCIENCE PHOTO LIBRARY

Caption: Franklin's map of the Gulf Stream. Report on the Gulf Stream from the Transactions of the American Philosophical Society (1786). The report is by the US scientist and politician Benjamin Franklin (1706-1790). Franklin was US Deputy Postmaster General, and carried out experiments to find out why mail ships took longer to get to America than to reach Europe. He confirmed the existence of a strong circulating ocean current called the Gulf Stream. This map is by James Poupard. The inset shows the Gulf Stream circulating round the North Atlantic. The main chart shows the Gulf Stream (grey) flowing along the eastern coast of North America, from Florida up to Newfoundland.

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Keywords: 1700s, 1786, 18th century, american, atlantic ocean, ben, benjamin franklin, cartography, circulating, current, franklin, geographical, geography, gulf stream, historical, history, james poupard, map, navigation, ocean, oceanic, oceanography, old, shipping, trade, transport, us

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