The discovery of the edison effect and the idea behind it

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The discovery of the edison effect and the idea behind it

Thomas Alva Edison The American inventor Thomas Alva Edison held hundreds of patents, most for electrical devices and electric light and power. Although the phonograph and incandescent lamp are best known, perhaps his greatest invention was organized research.

Thomas Edison was born in Milan, Ohio, on Feb. Edison spent 3 months in school, then was taught by his mother. At the age of 12 he sold fruit, candy, and papers on the Grand Trunk Railroad.

Early Inventions

Inusing his small handpress in a baggage car, he wrote and printed the Grand Trunk Herald, which was circulated to railroad employees. That year he became a telegraph operator, taught by the father of a child whose life Edison had saved. Exempt from military service because of deafness, he was a tramp telegrapher until he joined Western Union Telegraph Company in Boston in Early Inventions Probably Edison's first invention was an automatic telegraph repeater His first patent was for an electric vote recorder.

Inas a partner in a New York electrical firm, he perfected the stock ticker and sold it. This money, in addition to that from his share of the partnership, provided funds for his own factory in Newark, N. Edison hired technicians to collaborate on inventions; he wanted an "invention factory.

From to Edison invented many telegraphic improvements: He worked with Christopher Sholes, "father of the typewriter," in to improve the typing machine. Edison claimed he made 12 typewriters at Newark about The Remington Company bought his interests.

In Edison's carbon telegraph transmitter for Western Union marked a real advance toward making the Bell telephone practical. Again he pooled scientific talent, and within 6 years he had more than patents.

The electric pen produced stencils to make copies.

Light Bulb History - Invention of the Light Bulb

Dick Company licensed Edison's patent and manufactured the mimeograph machine. The Phonograph Edison's most original and lucrative invention, the phonograph, was patented in From a manually operated instrument making impressions on metal foil and replaying sounds, it became a motor-driven machine playing cylindrical wax records by By he had more than 80 patents on it.

The Victor Company developed from his patents. Alexander Graham Bell impressed sound tracks on cylindrical shellac records; Berliner invented disk records. Edison's later dictating machine, the Ediphone, used disks. Incandescent Lamp To research incandescence, Edison and others, including J.

Morgan, organized the Edison Electric Light Company in Later it became the General Electric Company. Edison made the first practical incandescent lamp inand it was patented the following year.

After months of testing metal filaments, Edison and his staff examined 6, organic fibers from around the world and decided that Japanese bamboo was best. Mass production soon made the lamps, although low-priced, profitable.

First Central Electric-Light Power Plant Prior to Edison's central power station, each user of electricity needed a dynamo generatorwhich was inconvenient and expensive. Edison opened the first commercial electric station in London in ; in September the Pearl Street Station in New York City marked the beginning of America's electrical age.

Within 4 months the station was lighting more than 5, lamps for customers, and the demand for lamps exceeded supply. By it supplied current to 20, lamps, mainly in office buildings, and to motors, fans, printing presses, and heating appliances.

Many towns and cities installed central stations. Increased use of electricity led to Edison-base sockets, junction boxes, safety fuses, underground conduits, meters, and the three-wire system. Jumbo dynamos, with drum-wound armatures, could maintain volts with 90 percent efficiency.

The three-wire system, first installed in Sunbury, Pa. In Edison made a significant discovery in pure science, the Edison effect—electrons flowed from incandescent filaments.

With a metal-plate insert, the lamp could serve as a valve, admitting only negative electricity.The Discovery of the Edison Effect and the Idea Behind It PAGES 2.

The discovery of the edison effect and the idea behind it

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Thomas Edison Inventions | Thomas Edison Muckers

Not sure what I'd do without @Kibin - Alfredo Alvarez, student @ Miami University. discovery, the edison effect, the idea behind it. Not sure what I'd do without @Kibin.

Edison effect definition is - the thermionic current observed when an additional electrode is introduced into an incandescent-lamp bulb and connected externally with the positive terminal through a galvanometer.

Jan 13,  · The animation demonstrates the Edison Effect where electrons which flow into a bulb can be attracted to a charged plate and produce a current. Read more about the History of the Light Bulb. More than years ago, inventors began working on a bright idea that would have a dramatic impact on how we use energy in our homes and offices.

This invention changed the way we design buildings, increased the length of the average workday and jumpstarted new businesses. Even Henry Ford, who was friends with Edison, partnered with Edison to explore options for a low-cost electric car in , according to Wired.

Yet, it was Henry Ford’s mass-produced Model T that dealt a blow to the electric car. From a discovery made by one of his associates, he patented the Edison effect (now called thermionic diode), which is the basis for all electron tubes.

Edison will forever be remembered for his contributions to the incandescent light bulb.

Thomas Edisons Inventions | Thomas Edison Muckers