Edison biography book

Edison: a biography: Matthew Josephson

48 Edison's name is registered on 1,093 patents. Carbon telephone transmitter In 1876, Edison began work to improve the microphone for telephones (at that time called a "transmitter by developing a carbon microphone, which consists of two metal plates separated by granules of carbon that would change resistance with the pressure of sound. A steady direct current is passed between the plates through the granules and the varying resistance results in a modulation of the current, creating a varying electric current that reproduces the varying pressure of the sound wave. Up to that point, microphones, such as the ones developed by johann Philipp reis and Alexander Graham Bell, worked by generating a weak current. The carbon microphone works by modulating a direct current and, subsequently, using a transformer to transfer the signal so generated to the telephone line. Edison was one of many inventors working on the problem of creating a usable microphone for telephony by having it modulate an electrical current passed through.

About a dozen were design patents, which protect an ornamental design for up to a 14-year period. As in most patents, the inventions he described were improvements over prior art. The phonograph patent, in contrast, was unprecedented as describing the first device to record and reproduce sounds. 44 In just over a decade, edison's Menlo park laboratory had expanded to occupy two city blocks. Edison said he wanted the lab to have "a stock of almost every conceivable material". 45 A newspaper article printed in 1887 reveals the seriousness of his claim, stating the lab contained "eight thousand kinds of chemicals, every kind of screw made, every size of needle, every kind of cord or wire, hair of humans, horses, hogs, cows, rabbits, goats. Silk in every texture, cocoons, various kinds of hoofs, shark's teeth, deer horns, tortoise shell. Cork, resin, varnish and oil, ostrich feathers, a peacock's tail, jet, amber, rubber, all ores." and the list goes. 46 over his desk, edison displayed a placard with Sir Joshua reynolds ' famous"tion: "There is no expedient to which a man will not resort to avoid the real labor of thinking." 47 This slogan was reputedly posted at several meaning other locations throughout the. With Menlo park, edison had created the first industrial laboratory concerned with creating knowledge and then controlling its application.

edison biography book

Edison: a biography by matthew Josephson - goodreads

In 1880, he was appointed chief engineer of the Edison Lamp Works. In his first year, the plant under General Manager Francis Robbins Upton turned out 50,000 lamps. According to Edison, hammer japanese was "a pioneer of incandescent electric lighting". Sprague, a competent mathematician and former naval officer, was recruited by Edward. Johnson and joined the Edison organization in 1883. One of Sprague's contributions to the Edison Laboratory at Menlo park was to expand Edison's mathematical methods. Despite the common belief that Edison did not use mathematics, analysis of his notebooks reveal that he was an astute user of mathematical analysis conducted by his assistants such as Francis Robbins Upton, for example, determining the critical parameters of his electric lighting system including. 43 nearly all of Edison's patents were utility patents, which were protected for a 17-year period and included inventions or processes that are electrical, mechanical, or chemical in nature.

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He was surprised to hear them offer 10,000 (216,300 in today's dollars. 40 which he gratefully accepted. 41 The quadruplex telegraph was Edison's first big financial success, and Menlo park became the first institution set up with the specific purpose of producing constant technological innovation and improvement. Edison was legally attributed with most of the inventions produced there, though many employees carried out research and development under his direction. His staff was generally told to carry out his directions in conducting research, and he drove them hard to produce results. William Joseph Hammer, a consulting electrical engineer, started working for Edison and began his duties as a laboratory assistant in December 1879. He assisted in experiments on the telephone, phonograph, electric railway, iron reviews ore separator, electric lighting, and other developing inventions. However, hammer worked primarily on the incandescent electric lamp and was put in charge of tests and records on that device (see hammer Historical Collection of Incandescent Electric Lamps ).

36 In April 1878, Edison traveled to washington to demonstrate the phonograph before the national Academy of Sciences, congressmen, senators and us president hayes. 37 The washington Post described Edison as a " genius " and his presentation as "a scene. That will live in history". 38 Although Edison obtained a patent for the phonograph in 1878, 39 he did little to develop it until Alexander Graham Bell, chichester Bell, and Charles tainter produced a phonograph-like device in the 1880s that used wax-coated cardboard cylinders. Menlo park research and development facility Edison's Menlo park laboratory, reconstructed at Greenfield Village at Henry ford Museum in dearborn, michigan. Edison's major innovation was the establishment of an industrial research lab in 1876. It was built in Menlo park, a part of Raritan Township (now named Edison Township in his honor) in Middlesex county, new Jersey, with the funds from the sale of Edison's quadruplex telegraph. After his demonstration of the telegraph, Edison was not sure that his original plan to sell it for 4,000 to 5,000 was right, so he asked Western Union to make a bid.

Edison: a biography - matthew Josephson - google books

edison biography book

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27 Edison generally preferred spending time in the the laboratory to being with his family. Mina miller Edison in 1906 On February 24, 1886, at the age of thirty-nine, edison married the 20-year-old Mina miller (18651947) in Akron, Ohio. 29 prioritization She was the daughter of the inventor Lewis Miller, co-founder of the Chautauqua institution, and a benefactor of Methodist charities. They also had three children together: Mina outlived Thomas Edison, dying on August 24, 1947. 33 34 Beginning his career Photograph of Edison with his phonograph (2nd model taken in Mathew Brady 's Washington, dc studio in April 1878. Edison began his career as an inventor in Newark, new Jersey, with the automatic repeater and his other improved telegraphic devices, but the invention that first gained him wider notice was the phonograph in 1877.

35 This accomplishment was so unexpected by the public at large as to appear almost magical. Edison became known as "The wizard of Menlo park new Jersey. 4 His first phonograph recorded on tinfoil around a grooved cylinder. Despite its limited sound quality and that the recordings could be played only a few times, the phonograph made Edison a celebrity. Joseph Henry, president of the national Academy of Sciences and one of the most renowned electrical scientists in the us, described Edison as "the most ingenious inventor in this country. Or in any other".

Edison requested the night shift, which allowed him plenty of time to spend at his two favorite pastimes—reading and experimenting. Eventually, the latter pre-occupation cost him his job. One night in 1867, he was working with a leadacid battery when he spilled sulfuric acid onto the floor. It ran between the floorboards and onto his boss's desk below. The next morning Edison was fired.


21 One of his mentors during those early years was a fellow telegrapher and inventor named Franklin leonard Pope, who allowed the impoverished youth to live and work in the basement of his Elizabeth, new Jersey, home. Some of Edison's earliest inventions were related to telegraphy, including a stock ticker. His first patent was for the electric vote recorder,. Patent 90,646, which was granted on June 1, 1869. 22 Marriages and children On December 25, 1871, at the age of twenty-four, Edison married 16-year-old Mary Stilwell (18551884 whom he had met two months earlier; she was an employee at one of his shops. They had three children: Marion Estelle Edison (18731965 nicknamed "Dot" 23 Thomas Alva edison. (18761935 nicknamed "Dash" 24 William Leslie edison (18781937) Inventor, graduate of the Sheffield Scientific School at Yale, 1900. 25 Mary Edison died at age 29 on August 9, 1884, of unknown causes: possibly from a brain tumor 26 or a morphine overdose. Doctors frequently prescribed morphine to women in those years to treat a variety of causes, and researchers believe that her symptoms could have been from morphine poisoning.

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17 This began Edison's long streak of oliver entrepreneurial ventures, as he discovered his talents as a businessman. These talents eventually led him to found 14 companies, including General Electric, still one of the largest publicly traded companies in the world. 18 19 Telegrapher Edison became a telegraph operator after he saved three-year-old Jimmie macKenzie from being struck by a runaway train. Jimmie's father, station agent. MacKenzie of mount Clemens, michigan, was so grateful that he trained Edison as a telegraph operator. Edison's first telegraphy job away from Port Huron was at Stratford Junction, Ontario, on homework the Grand Trunk railway. 20 In 1866, at the age of 19, Edison moved to louisville, kentucky, where, as an employee of Western Union, he worked the Associated Press bureau news wire.

edison biography book

In his later years, he modified the thesis story to say the injury occurred when the conductor, in helping him onto a moving train, lifted him by the ears. 13 14 Edison's family moved to port Huron, michigan, after the canal owners successfully kept the railroad out of Milan Ohio in 1854 and business declined. 15 Edison sold candy and newspapers on trains running from Port Huron to detroit, and sold vegetables. He briefly worked as a telegraph operator in 1863 for the Grand Trunk railway at the railway station in Stratford, Ontario, at age. He was held responsible for a near collision. He also studied qualitative analysis and conducted chemical experiments on the train until he left the job. 16 17 Edison obtained the exclusive right to sell newspapers on the road, and, with the aid of four assistants, he set in type and printed the Grand Trunk herald, which he sold with his other papers.

Once across the border, he found his way to milan, Ohio. His patrilineal family line was Dutch by way of New Jersey; the surname had originally been "Edeson." 10 Edison only attended school for a few months and was instead taught by his mother. 11 Much of his education came from reading. Parker's School of Natural Philosophy and The cooper Union for the Advancement of Science and Art. 12 Edison developed hearing problems at an early age. The cause of his deafness has been attributed to a bout of scarlet fever during childhood and recurring untreated middle-ear infections. Around the middle of his career, Edison attributed the hearing impairment to being struck on the ears by a train conductor when his chemical laboratory in a boxcar caught fire and he was thrown off the train in Smiths Creek, michigan, along with his apparatus.

His advanced work in these fields was an outgrowth of his early career as a telegraph operator. Edison developed a system of electric-power generation and distribution 6 to homes, businesses, and factories a crucial development in the modern industrialized world. His first power station was on pearl Street in, manhattan, new York. 6 Contents Early life Edison as a boy thomas Edison was born, in 1847, in Milan, Ohio, and grew up in Port Huron, michigan. He was the seventh and last child of Samuel Ogden movie Edison. (18041896, born in Marshalltown, nova scotia ) and Nancy matthews Elliott (18101871, born in Chenango county, new York ). 7 8 His father, the son of a loyalist refugee, had moved as a boy with the family from nova scotia, settling in southwestern Ontario (then called Upper Canada in a village known as Shewsbury, later vienna, by 1811. Eventually fled Ontario, because he took part in the unsuccessful Mackenzie rebellion of 1837.

Edison : a biography (book, 1959) WorldCat

Thomas Alva edison (February 11, 1847 October 18, 1931) was an American inventor and businessman, who has been described as America's greatest inventor. 1 2 3, he developed many devices that greatly influenced life around the world, including the phonograph, the motion picture camera, and the long-lasting, practical electric light bulb. Dubbed "The wizard of Menlo park 4 he was one of the first inventors to apply the principles of mass production and large-scale teamwork to the process of invention, and is often credited with the creation of the first industrial research laboratory. 5, edison was a prolific inventor, holding 1,093, us patents in his name, as well as many patents in the United Kingdom, France, and Germany. More significant than the number of Edison's gpa patents was the widespread impact of his inventions: electric light and power utilities, sound recording, and motion pictures all established major new industries worldwide. Edison's inventions contributed to mass communication and, in particular, telecommunications. These included a stock ticker, a mechanical vote recorder, a battery for an electric car, electrical power, recorded music and motion pictures.


edison biography book
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He was the seventh and last child of Samuel Ogden Edison. (18041896, born in Marshalltown, nova scotia) and Nancy matthews Elliott (18101871, born in Chenango county, new York). Welcome to the tesla memorial Society of New York website tesla biography.

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  1. Edison Papers Project, a research center at Rutgers School of Arts and Sciences, is one of the most ambitious editing projects ever undertaken by an American university. This disambiguation page lists articles associated with the title Edison. If an internal link led you here, you may wish to change the link to point directly to the intended article. Thomas Edison was born, in 1847, in Milan, Ohio, and grew up in Port Huron, michigan.

  2. Adler, john Wallner, Alexandra wallner. A brief biography of Thomas Alva edison written by john. Venable godfather of industry "But the man whose clothes were always wrinkled, whose hair was always tousled and who frequently lacked a shave probably did more than any other one man to influence the industrial civilization in which we live.

  3. Regarded as the classic standard biography on Thomas Edison. It is the only biography written in the last 40 years to be recommended by the official voice of the caretakers of the Edison Laboratory national Monument in New Jersey which houses all. A picture book of Thomas Alva edison (Picture book biography) david.

  4. Back to topic A descendant of the distinguished Elliot family of New England, new York born Nancy Edison was the devout and attractive daughter of a highly respected Presbyterian minister and an accomplished educator in her own right. Edison: a biography matthew Josephson. Free shipping on qualifying offers.

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