Thomas Alva Edison ( 1843-1931)
BORN : 11 February 1847, Milan, Ohio, United States
His father was an exiled political activist from Canada, while his mother was an accomplished school teacher and a major influence in Edison’s early life.An early bout with scarlet fever as well as ear infections left Edison with hearing difficulties in both ears as a child and nearly deaf as an adult.Edison would later recount, with variations on the story, that he lost his hearing due to a train incident in which his ears were injured. But others have tended to discount this as the sole cause of his hearing loss.In 1854, Edison’s family moved to Port Huron, Michigan, where he attended public school for a total of 12 weeks. A hyperactive child, prone to distraction, he was deemed "difficult" by his teacher. His mother quickly pulled him from school and taught him at home. At age 11, he showed a voracious appetite for knowledge, reading books on a wide range of subjects. In this wide-open curriculum Edison developed a process for self-education and learning independently that would serve him throughout his life.
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 railroad that ran through Port Huron to Detroit. Edison began publishing his own small newspaper, called the Grand Trunk Herald.The up-to-date articles were a hit with passengers. This was the first of what would become a long string of entrepreneurial ventures where he saw a need and capitalized on the opportunity. Edison also used his access to the railroad to conduct chemical experiments in a small laboratory he set up in a train baggage car. During one of his experiments, a chemical fire started and the car caught fire.
The conductor rushed in and struck Edison on the side of the head, probably furthering some of his hearing loss. He was kicked off the train and forced to sell his newspapers at various stations along the route.
Telegraph Work
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. By the time he was sixteen, Edison was proficient enough to work as a telegrapher full time.
In 1862, Edison rescued a three-year-old from a track where a boxcar was about to roll into him. The grateful father, J.U. MacKenzie, taught Edison railroad telegraphy as a reward. That winter, he took a job as a telegraph operator in Port Huron. In the meantime, he continued his scientific experiments on the side. Between 1863 and 1867, Edison migrated from city to city in the United States taking available telegraph jobs.
In 1868 Edison moved to Boston where he worked in the Western Union office and worked even more on his inventions. In January 1869 Edison resigned his job, intending to devote himself fulltime to inventing things. His first invention to receive a patent was the electric vote recorder, in June 1869. Daunted by politicians' reluctance to use the machine, he decided that in the future he would not waste time inventing things that no one wanted.
Edison became involved in multiple projects and partnerships dealing with the telegraph. In October 1869, Edison formed with Franklin L. Pope and James Ashley the organization Pope, Edison and Co. They advertised themselves as electrical engineers and constructors of electrical devices. Edison received several patents for improvements to the telegraph. The partnership merged with the Gold and Stock Telegraph Co. in 1870. Edison also established the Newark Telegraph Works in Newark, NJ, with William Unger to manufacture stock printers. He formed the American Telegraph Works to work on developing an automatic telegraph later in the year. In 1874 he began to work on a multiplex telegraphic system for Western Union, ultimately developing a quadruplex telegraph, which could send two messages simultaneously in both directions. When Edison sold his patent rights to the quadruplex to the rival Atlantic & Pacific Telegraph Co., a series of court battles followed in which Western Union won. Besides other telegraph inventions, he also developed an electric pen in 1875.
His personal life during this period also brought much change. Edison's mother died in 1871, and later that year, he married a former employee, Mary Stilwell, on Christmas Day. While Edison clearly loved his wife, their relationship was fraught with difficulties, primarily his preoccupation with work and her constant illnesses. Edison would often sleep in the lab and spent much of his time with his male colleagues. Nevertheless, their first child, Marion, was born in February 1873, followed by a son, Thomas, Jr., born on January 1876. Edison nicknamed the two "Dot" and "Dash," referring to telegraphic terms. A third child, William Leslie was born in October 1878
INVENTIONS
Phonograph
Edison's wife, Mary, died on August 9, 1884, possibly from a brain tumor. Edison remarried to Mina Miller on February 24, 1886, and, with his wife, moved into a large mansion named Glenmont in West Orange, New Jersey. Edison's children from his first marriage were distanced from their father's new life, as Edison and Mina had their own family: Madeleine, born on 1888; Charles on 1890; and Theodore on 1898. Unlike Mary, who was sickly and often remained at home, and was also deferential to her husband's wishes, Mina was an active woman, devoting much time to community groups, social functions, and charities, as well as trying to improve her husband's often careless personal habits.
In 1887, Edison had built a new, larger laboratory in West Orange, New Jersey. The facility included a machine shop, phonograph and photograph departments, a library, and ancillary buildings for metallurgy, chemistry, woodworking, and galvanometer testings.
The electric light
The electric light wasn’t Thomas Edison’s first invention, nor was he the first to create an alternative to gaslight. Electric lights already existed on a streetlight scale when, on this day in 1879, Edison tested the one he’s famous for. Though he didn’t come up with the whole concept, his light bulb was the first that proved practical, and affordable, for home illumination. The trick had been choosing a filament that would be durable but inexpensive, and the team at Edison’s “invention factory” in Menlo Park, New Jersey, tested more than 6,000 possible materials before finding one that fit the bill: carbonized bamboo.
Thomas Edison Motion Picture
Edison’s initial work in motion pictures (1888-89) was inspired byMuybridge’s analysis of motion. The first Edison device resembled his phonograph, with a spiral arrangement of 1/16 inch photographs made on a cylinder. Viewed with a microscope, these first motion pictures were rather crude, and hard to focus. Working with W. K. L. Dickson, Edison then developed the Strip Kinetograph, using George Eastman’s improved 35 mm celluloid film. Cut into continuous strips and perforated along the edges, the film was moved by sprockets in a stop-and-go motion behind the shutter.
In Edison’s movie studio, technically known as a Kinetographic Theater, but nicknamed “The Black Maria” (1893), Edison and his staff filmed short movies for later viewing with his peep hole Kinetoscopes (1894). One-person at a time could view the movies via the Kinetoscope. Each Kinetoscope was about 4 feet tall, 20 inches square, and had a peep hole magnifier that allowed the patron to view 50 feet of film in about 20 seconds. A battery-operated lamp allowed the film to be illuminated.
The Electrographic Vote Recorder
Edison was 22 years old and working as a telegrapher when he filed his first patent for the Electrographic Vote Recorder.
The device was made with the goal of helping legislators in the US Congress record their votes in a quicker fashion than the voice vote system.
To work, a voting device was connected to a clerk’s desk where the names of the legislators were embedded. The legislators would move a switch to either yes or no, sending electric current to the device at the clerks desk. Yes and No wheels kept track of the votes and tabulated the final results.
Magnetic Iron Ore Separator
Thomas Edison experimented during the 1880′s and 1890′s with using magnets to separate iron ore from low grade, unusable ores. His giant mine project in northwestern NJ consumed huge amounts of money as experimentation plodded forward.Engineering problems and a decline in the price of iron ore [the discovery of the Mesabi iron rich ore deposits near the Great Lakes] lead this invention to be abandoned.
But later, Edison used what he learned with rock grinding to make his own robust version of Portland Cement, Edison Portland Cement, a very good product that built Yankee Stadium. Along the way, Edison totally revolutionized the cement kiln industry.
The West Orange Laboratory
Thomas Alva Edison entered into a new and the fullest phase of his career when, at age of forty, he moved his talents and tools from Menlo Park to his great new laboratory at West Orange, New Jersey, on November 24, 1887. One of his first undertakings was the development of his favorite creation, the phonograph. The pressure of his work in connection with the perfection and installation of electric lighting systems throughout the country had made it impossible for him to concentrate on the phonograph, but now he went to work in earnest to see that the instrument fulfilled the high destiny he had held out for it from its beginning ten years earlier.During the first four years of his occupancy of his new laboratory at West Orange, he took out more than eighty patents on improvements on the cylinder phonograph and its businessman’s counterpart, the dictating machine.
DEATH
A peaceful death enveloped him at his home, Glenmont, in Llewellyn Park, West Orange, on Oct. 18, 1931. He was 84 years old. His lifetime had embraced four wars and as many depressions. His achievements, more so than those of any one man, had helped to lift America to the pinnacle of greatness. The world was his beneficiary.
Thomas Edison's last words were "It's very beautiful over there". I don't know where there is, but I believe it's somewhere, and I hope it's beautiful.”
