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Benjamin Franklin thought that slavery was "an atrocious debasement of human nature" and "a source of serious evils." In 1787, Franklin and Benjamin Rush helped write a new constitution for the Pennsylvania Society for Promoting the Abolition of Slavery, [264] and that same year Franklin became president of the organization. [265]
Pages in category "Inventions by Benjamin Franklin" The following 5 pages are in this category, out of 5 total. This list may not reflect recent changes. B.
Franklin invented the lightning rod, which goes down in history as the first practical electrical invention. Crane, Verner Winslow (1954). Benjamin Franklin and a Rising People. Little, Brown and Company. Finger, Stanley (2012). Doctor Franklin's Medicine. University of Pennsylvania Press. ISBN 978-0-8122-0191-8. Franklin, Benjamin (1751).
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]
The Franklin stove is a metal-lined fireplace named after Benjamin Franklin, who invented it in 1742. [1] It had a hollow baffle near the rear (to transfer more heat from the fire to a room's air) and relied on an "inverted siphon" to draw the fire's hot fumes around the baffle. [ 2 ]
Benjamin Franklin was so busy as an inventor, publisher, scientist, diplomat and U.S. founding father that it’s easy to lose track of his accomplishments. Franklin was an early innovator of ...
Contrary to popular belief, daylight saving was not introduced to help farmers get some extra sun, nor was it an invention of Benjamin Franklin. Instead, lawmakers thought that it might lead to ...
Benjamin Franklin Drawing Electricity from the Sky, an artistic rendition of Franklin's kite experiment painted by Benjamin West, c. 1816 The BEP engraved the vignette Franklin and Electricity (c. 1860) which was used on the $10 National Bank Note from the 1860s to 1890s.
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