what are all the inventions benjamin franklin made?
Lightning rod Franklin stove Bifocals Glass harmonica
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 The book was popular in the Thirteen Colonies of America , and its appeal survived the American War of Independence , copies being owned by Benjamin Franklin , Thomas Jefferson and George Washington . 

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 As the public familiarity with electricity as the lifeblood of the Second Industrial Revolution grew , its wielders were more often cast in a positive light , such as the workers who " finger death at their gloves ' end as they piece and repiece the living wires " in Rudyard Kipling 's 1907 poem Sons of Martha . Electrically powered vehicles of every sort featured large in adventure stories such as those of Jules Verne and the Tom Swift books . The masters of electricity , whether fictional or real — including scientists such as Thomas Edison , Charles Steinmetz or Nikola Tesla — were popularly conceived of as having wizard @-@ like powers . 

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 Revolutionary War series 

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 The characters were created by Edward Stratemeyer , the founder of the Stratemeyer Syndicate , a book @-@ packaging firm , and the books have been written by many different ghostwriters over the years . The books are published under the collective pseudonym Franklin W. Dixon . 

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 Further work was conducted by Otto von Guericke , Robert Boyle , Stephen Gray and C. F. du Fay . In the 18th century , Benjamin Franklin conducted extensive research in electricity , selling his possessions to fund his work . In June 1752 he is reputed to have attached a metal key to the bottom of a dampened kite string and flown the kite in a storm @-@ threatened sky . A succession of sparks jumping from the key to the back of his hand showed that lightning was indeed electrical in nature . He also explained the apparently paradoxical behavior of the Leyden jar as a device for storing large amounts of electrical charge in terms of electricity consisting of both positive and negative charges . 
