JOHN GREIM / SCIENCE PHOTO LIBRARY JOHN GREIM / SCIENCE PHOTO LIBRARY
Ben Franklin. Statue of the US scientist and statesman Benjamin Franklin (1706-1790). Franklin was one of the Founding Fathers of the United States. He proposed and may have conducted experiments with a kite in a thunderstorm to show that lightning is electricity. This led to his invention of the lightning rod to protect buildings from lightning strikes. He also invented fins for swimming, bifocal glasses, a urinary catheter and showed that evaporation cooled objects. He helped shape the American Revolution and was a signatory of the US Declaration of Independence. Photographed at the University of Pennsylvania, Philadelphia, USA.
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