Early Life
Thomas Alva Edison was born on February 11, 1847 in the canal town of Milan, Ohio; He is the last of seven children of Samuel and Nancy Edison. His mother, Nancy, had been a school teacher; his father, Samuel, was a Canadian political firebrand who was exiled from his country. When Edison was seven his family moved to Port Huron, Michigan. Edison lived here until he struck out on his own at the age of sixteen.
Edison had very little formal education as a child, attending school only for a few months. By the teacher, he was unpotensial student and his ability was below average (did you know that he was a kid who has dyslexia). Finaly, he was taught reading, writing, and arithmetic by his mother. But he was always a very curious child and taught himself much by reading on his own. This belief in self-improvement remained throughout his life.
In 1859, Edison began working at an early age, as most boys did at the time. At thirteen he took a job as a newsboy, selling newspapers and candy on the local of the Grand Trunk Railroad that ran through Port Huron to Detroit. He seems to have spent much of his free time reading scientific, and technical books, and also had the opportunity at this time to learn how to operate a telegraph. At one point he printed a newspaper on the train, and he also conducted chemical experiments in a baggage-car laboratory.
By 1862, he was sixteen, Edison was proficient enough to work as a telegrapher full time. From 1863 to 1867 he traveled through the Midwest as an itinerant telegrapher. During these years he read widely, studied and experimented with telegraph technology, and generally acquainted himself with electrical science.
Early Inventive Career
The development of the telegraph was the first step in the communication revolution, and the telegraph industry expanded rapidly in the second half of the 19th century. This rapid growth gave Edison and others like him a chance to travel, see the country, and gain experience. Edison worked in a number of cities throughout the United States before arriving in Boston in 1868. In 1868 Edison began to change his profession from telegrapher to inventor. He received his first patent on an electric vote recorder, a device intended for use by elected bodies such as Congress to speed the voting process. This invention was a commercial failure. Edison resolved that in the future he would only invent things that he was certain the public would want.
Edison moved to New York City in 1869. He continued to work on inventions related to the telegraph, and developed his first successful invention, an improved stock tickers called the "Universal Stock Printer". Edison soon acquired a reputation as a first-rank inventor. His work included, fire alarms, methods of sending simultaneous messages on one wire, and an electrochemical telegraph to send messages by automatic machinery. The crowning achievement of this period was the quadruplex telegraph, which sent two messages simultaneously in each direction on one wire. For this and some related inventions Edison was paid $40,000. This gave Edison the money he needed to set up his first small laboratory and manufacturing facility in Newark, New Jersey in 1871. During the next five years, Edison worked in Newark inventing and manufacturing devices that greatly improved the speed and efficiency of the telegraph. He also found to time to get married to Mary Stilwell and start a family.
The problems of interfering signals in multiple telegraphy and high speed in automatic transmission forced Edison to extend his study of electromagnetism and chemistry. As a result, he introduced electrical and chemical laboratories into his experimental machine shops.
Near the end of 1875, observations of strange sparks in telegraph instruments led Edison into a public scientific controversy over what he called "etheric force," which only later was understood to be radio waves.
Menlo Park
In 1876 Edison sold all his Newark manufacturing concerns and moved his family and staff of assistants to the small village of Menlo Park, twenty-five miles southwest of New York City. Edison established a new facility containing all the equipment necessary to work on any invention. This research and development laboratory was the first of its kind anywhere; the model for later, modern facilities such as Bell Laboratories, this is sometimes considered to be Edison's greatest invention. Here Edison began to change the world. Edison created a freestanding industrial research facility incorporating both a machine shop and laboratories. In Menlo Park, on the rail line between New York City and Philadelphia, he developed three of his greatest inventions
Urged by Western Union to develop a telephone that could compete with Alexander Graham Bell's, Edison invented a transmitter in which a button of compressed carbon changed its resistance as it was vibrated by the sound of the user's voice, a new principle that was used in telephones for the next century.
While working on the telephone in the summer of 1877, Edison discovered a method of recording sound, and in the late fall he unveiled the phonograph. It was the tin foil phonograph, the first machine that could record and reproduce sound created a sensation. This astounding instrument brought him world fame as the "Wizard of Menlo Park" and the "inventor of the age". Edison toured the country with the tin foil phonograph, and was invited to the White House to demonstrate it to President Rutherford B. Hayes in April 1878.
Finally, beginning in the fall of 1878, Edison devoted thirty months to developing a complete system of incandescent electric lighting, his greatest challenge. During his lamp experiments, he noticed an electrical phenomenon that became known as the "Edison effect," the basis for vacuum-tube electronics.The idea of electric lighting was not new, and a number of people had worked on, and even developed forms of electric lighting. But up to that time, nothing had been developed that was remotely practical for home use. Edison's eventual achievement was inventing not just an incandescent electric light, but also an electric lighting system that contained all the elements necessary to make the incandescent light practical, safe, and economical. After one and a half years of work, success was achieved when an incandescent lamp with a filament of carbonized sewing thread burned for thirteen and a half hours. The first public demonstration of the Edison's incandescent lighting system was in December 1879, when the Menlo Park laboratory complex was electrically lighted. Edison spent the next several years creating the electric industry.
In September 1882, the first commercial power station, located on Pearl Street in lower Manhattan, went into operation providing light and power to customers in a one square mile area; the electric age had begun. He left Menlo Park in 1881 to establish factories and offices in New York and elsewhere. Over the next five years he manufactured, improved, and installed his electrical system around the world.
West Orange Laboratory
In 1887, Edison built an industrial research laboratory in West Orange, New Jersey, that remained unsurpassed until the twentieth century. For four years it was the primary research facility for the Edison lighting companies, and Edison spent most of his time on that work. In 1888 and 1889, he concentrated for several months on a new version of the phonograph that recorded on wax cylinders.
The success of his electric light brought Edison to new heights of fame and wealth, as electricity spread around the world. Edison's various electric companies continued to grow until in 1889 they were brought together to form Edison General Electric. Despite the use of Edison in the company title however, Edison never controlled this company. The tremendous amount of capital needed to develop the incandescent lighting industry had necessitated the involvement of investment bankers such as J.P. Morgan. When Edison General Electric merged with its leading competitor Thompson-Houston in 1892, Edison was dropped from the name, and the company became simply General Electric.
This period of success was marred by the death of Edison's wife Mary in 1884. Edison's involvement in the business end of the electric industry had caused Edison to spend less time in Menlo Park. After Mary's death, Edison was there even less, living instead in New York City with his three children. A year later, while vacationing at a friends house in New England, Edison met Mina Miller and fell in love. The couple was married in February 1886 and moved to West Orange, New Jersey where Edison had purchased an estate, Glenmont, for his bride. Thomas Edison lived here with Mina until his death.
When Edison moved to West Orange, he was doing experimental work in makeshift facilities in his electric lamp factory in nearby Harrison, New Jersey. A few months after his marriage, however, Edison decided to build a new laboratory in West Orange itself, less than a mile from his home. Edison possessed the both the resources and experience by this time to build, "the best equipped and largest laboratory extant and the facilities superior to any other for rapid and cheap development of an invention ". The new laboratory complex consisting of five buildings opened in November 1887. A three story main laboratory building contained a power plant, machine shops, stock rooms, experimental rooms and a large library. Four smaller one story buildings built perpendicular to the main building contained a physics lab, chemistry lab, metallurgy lab, pattern shop, and chemical storage. The large size of the laboratory not only allowed Edison to work on any sort of project, but also allowed him to work on as many as ten or twenty projects at once. Facilities were added to the laboratory or modified to meet Edison's changing needs as he continued to work in this complex until his death in 1931. Over the years, factories to manufacture Edison inventions were built around the laboratory. The entire laboratory and factory complex eventually covered more than twenty acres and employed 10,000 people at its peak during World War One (1914-1918).
After opening the new laboratory, Edison began to work on the phonograph again, having set the project aside to develop the electric light in the late 1870s. By the 1890s, Edison began to manufacture phonographs for both home, and business use. Like the electric light, Edison developed everything needed to have a phonograph work, including records to play, equipment to record the records, and equipment to manufacture the records and the machines. In the process of making the phonograph practical, Edison created the recording industry. The development and improvement of the phonograph was an ongoing project, continuing almost until Edison's death.
Edison worked with William Dickson from 1888 till 1893 on a motion picture camera. Although Edison had always had experimental assistants, this was the clearest instance of a co-invention for which Edison received sole credit.
Later Years
After the mining failure, Edison adapted some of the machinery to process Portland cement. A roasting kiln he developed became an industry standard. Edison cement was used for buildings, dams, and even Yankee Stadium.
In the early years of the automobile industry there were hopes for an electric vehicle, and Edison spent the first decade of the twentieth century trying to develop a suitable storage battery. Although gas power won out, Edison's battery was used extensively in industry.
In World War I the federal government asked Edison to head the Naval Consulting Board, which examined inventions submitted for military use. Edison worked on several problems, including submarine detectors and gun location techniques.
In the past of 1920, his healthy began drop. At eighty four years old, October 18, 1931, he was death. By the time of his death in 1931 received 1,093 U.S. patents, a total still untouched by any other inventor. Even more important, he created a model for modern industrial research.
No comments:
Post a Comment