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Title: Benjamin Franklin, Electricty Experiment with Kite
Caption: Benjamin Franklin's experiment with the kite "..when the string was thoroughly wet, abundance of electricity was procured..." Benjamin Franklin (1706-1790), American scientist, inventor and statesman. Franklin showed that lightning is electricity by flying a kite carrying a metal key during a thunderstorm. 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. In between all this, he also found time to found the USA, help shape the revolution and be a signatory of the Declaration of Independence.
Category: Science: History
Credit: Album / Science Source
Image size: 2850 × 3924 px | 32.0 MB
Print size: 24.1 × 33.2 cm | 1122.0 × 1544.9 in (300 dpi)