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Since many inventions are developed independently by more than one person, it is possible that the invention of bifocals may have been such a case. [3] John Isaac Hawkins, the inventor of trifocal lenses, coined the term bifocals in 1824 and credited Benjamin Franklin. [citation needed]
Benjamin Franklin's father, Josiah Franklin, was a tallow chandler, soaper, and candlemaker. Josiah Franklin was born at Ecton, Northamptonshire , England, on December 23, 1657, the son of Thomas Franklin, a blacksmith and farmer, and his wife, Jane White.
Franklin's electrostatic machine on display at the Franklin Institute. Franklin's electrostatic machine is a high-voltage static electricity-generating device used by Benjamin Franklin in the mid-18th century for research into electrical phenomena.
"Advice to a Friend on Choosing a Mistress" is a letter by Benjamin Franklin dated June 25, 1745, in which Franklin counsels a young man about channeling sexual urges. Due to its licentious nature the letter was not published in collections of Franklin's papers in the United States during the 19th century.
Franklin punned that compared to his ruminations on flatulence, other scientific investigations were "scarcely worth a FART-HING" "A Letter to a Royal Academy" [1] (sometimes "A Letter to a Royal Academy about Farting" or "Fart Proudly" [2] [3]) is the name of an essay about flatulence written by Benjamin Franklin c. 1781 while he was living abroad as United States Ambassador to France. [1]
Observations Concerning the Increase of Mankind, Peopling of Countries, etc. is a short essay written in 1751 by American polymath Benjamin Franklin. [1] It was circulated by Franklin in manuscript to his circle of friends, but in 1755 it was published as an addendum in a Boston pamphlet on another subject. [2]
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