Thomas edison biography worksheet famous people

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Thomas edison biography worksheet famous people

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Thomas Edison was a brilliant inventor and astute businessman who held a record of 1, patents either alone or jointly and was the driving force behind discoveries such as the phonograph, the incandescent light bulb, the alkaline battery, and one of the first motion picture cameras. He also established the first industrial research laboratory in the world.

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Thomas Edison was a brilliant inventor and astute businessman. In between, he tallied 1, United States patents and more than 1, patents in other countries [source: Rutgers ]. Biographers have figured that Edison averaged a patent every two weeks during his working life. Even though many of his "inventions" were not unique -- and he engaged in some well-publicized court battles with other inventors whose ideas he "borrowed" -- Edison's skill at marketing and using his influence often got him the credit.

Most of Edison's inventions fall into eight main categories: batterieselectric lights and power, phonographs and sound recording, cement, mining, motion pictures, telegraphs and telephones. But while the Wizard of Menlo Park is remembered for his major inventions, such as the incandescent electric light and the phonograph, his tireless mind also came up with some ideas that aren't so well-known -- and some that weren't welcomed by the public.

Keep reading to find out why members of Congress rejected a machine designed to make them more efficient and how another Edison invention frightened little girls and angered their parents. Edison was a year-old telegraph operator when he received his first patent for a machine he called the electrographic vote-recorder. He was one of several inventors at the time developing methods for legislative bodies, such as the U.

Congress, to record their votes in a more timely fashion than the time-honored voice vote system. In Edison's vote-recorder, a voting device was connected to the clerk's desk. At the desk, the names of the legislators were embedded in metal type in two columns -- "yes" and "no. After voting was completed, the clerk would place a chemically treated piece of paper on top of the metal type and run a metal roller over it.

The current would cause the chemicals in the paper to dissolve on the side for which the vote should be recorded. Congress wanted no part of any device that would increase the speed of voting -- decreasing the time for filibusters and political wheeling and dealing -- so young Edison's vote-recorder was sent to the political graveyard. Edison invented the ancestor of the tattoo gun -- the pneumatic stencil pen.

This electric pen, which Edison patented inused a rod tipped with a steel needle to perforate paper for printing purposes. It's important on its own as one of the first devices that could efficiently copy documents. Intattoo artist Samuel O'Reilly was awarded the first patent for a tattoo machine -- a device allegedly based on Edison's stencil pen.

O'Reilly apparently produced only one of the machines and that was for his own personal use -- there is no record of his marketing his device. After he developed his tattoo machine, many sideshow and circus attractions began frequenting his shop at No. The machine was much quicker than hand tattooing, and the performers thought it gave cleaner results.

After O'Reilly's death ina student took up his trade and machine and worked at Coney Island until the s. Probably the biggest financial failure of Edison's career was the magnetic ore-separator. The idea, which Edison's laboratory experimented with during the s and s, was to use magnets to separate iron ore from unusable lower-grade ores.

This would mean that abandoned mines could be profitable once again through the extraction of iron from sand at the sites. At the time, iron ore prices had risen to unprecedented heights.