After a portrait of Benjamin Franklin by Nicholas Cochin the younger made in 1777. American experimental scientist and statesman. Franklin proved the

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After a portrait of Benjamin Franklin by Nicholas Cochin the younger made in 1777. American experimental scientist and statesman. Franklin proved the distinction between positive and negative charges. Showing that lightning is comprised of invented the lightning conductor to protect buildings. He also discovered the Gulf Stream in the Atlantic and its high temperature. He suggested that ships use a thermometer to navigate it. He investigated the ability of different colours to absorb solar heat and invented bifocal spectacle lenses. Franklin was an active politician and one of the signatories of the American Declaration of Independence in 1776, a year before this portrait was made.

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Size: 3741px × 4672px
Photo credit: © SHEILA TERRY/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 1777, 18th, absorption, american, atlantic, benjamin, bifocal, century, cochin, conductor, electricity, electrostatic, finder, franklin, glasses, gulf, inventor, lightning, pioneer, portrait, scientist, solar, statesman, stream