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Throughout the 20th century, Edison was the world's most prolific inventor. At the beginning of the century, he held 736 U.S. patents. His final count was 1,093 U.S. patents, including 1084 utility patents (patents for inventions) and 9 artistic design patents. It was not until June 17, 2003 that he was passed by Japanese inventor Shunpei ...
Thomas Alva Edison (February 11, 1847 – October 18, 1931) was an American inventor and businessman. [ 1 ] [ 2 ] [ 3 ] He developed many devices in fields such as electric power generation , mass communication , sound recording , and motion pictures. [ 4 ]
Historian Thomas Hughes (1977) describes the features of Edison's method. In summary, they are: Hughes says, "In formulating problem-solving ideas, he was inventing; in developing inventions, his approach was akin to engineering; and in looking after financing and manufacturing and other post-invention and development activities, he was innovating."
A photo of the original purchase order from Thomas Edison to Corning for the glass encasement for Edison’s lightbulb in 1880. CEO Wendell Weeks keeps the purchase order framed in his office as a ...
In the episode, Homer, realizing his life is half-over and that he has not accomplished anything, begins to admire Thomas Edison and decides to create inventions to follow in Edison's footsteps and make his life worthwhile. The idea behind "The Wizard of Evergreen Terrace" came from Dan Greaney, who assigned John Swartzwelder to write the episode.
— Thomas Edison, scientist and inventor This page was last edited on 21 December 2011, at 04:25 (UTC). Text is available under the Creative Commons ...
Getty By Jacquelyn Smith The job interview was born in 1921, when Thomas Edison created a written test to evaluate job candidates' knowledge. Since then, the process has come a long way. "As the ...
Edison described it as a scientific toy. [5] A U.S patent application was filed for the "Vocal Engine" in 1878, and a patent was granted on December 10 of that year. [ 6 ] An 1884 Nature article on sound mills , similar devices to the phonomotor, reported that Edison's device, "literally accomplished the feat of talking a hole through a deal ...