Thomas Alva Edison (February 11, 1847 – October 18, 1931) was an American inventor and businessman.
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", he was one of the first inventors to
apply the principles of mass
production and large-scale
teamwork to the process of invention, and because of that, he is often credited
with the creation of the first industrial research
laboratory.
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 patents was the widespread impact of
his inventions: electric light and power utilities sound recording and motion pictures all established major new industries
world-wide. Edison's inventions contributed to mass communication and, in particular,
telecommunications. These included a stock
ticker, a mechanical vote
recorder, and a battery for an electric car, electrical power, recorded
music and motion pictures.
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 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.
Thomas Edison was born in Milan, Ohio, and grew up in Port Huron, Michigan. He was the
seventh and last child of Samuel Ogden Edison, Jr. (1804–1896, born in Marshalltown, Nova
Scotia) and Nancy Matthews
Elliott (1810–1871, born in Chenango County, New York). 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 Shrewsbury, later Vienna, by 1811. Samuel Jr. eventually fled Ontario
because he took part in the unsuccessful Mackenzie Rebellion of 1837. His father, Samuel Sr., had earlier fought in
the War of 1812 as captain of the First Middlesex Regiment. By
contrast, Samuel Jr.'s struggle found him on the losing side, and he crossed
into the United States at Sarnia-Port Huron. 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 "Edison."
His mother taught him at home. Much of his education came from reading R.G.
Parker's School of Natural Philosophy and The Cooper Union for the Advancement of
Science and Art.
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 and chemicals. In his later years, he
modified the story to say the injury occurred when the conductor, in helping
him onto a moving train, lifted him by the ears.
Edison's family moved to Port Huron, Michigan, after the railroad bypassed Milan in 1854
and business declined. Edison sold candy and newspapers on trains
running from Port Huron to Detroit, and sold vegetables to supplement his
income. He also studied qualitative analysis, and conducted chemical
experiments on the train until an accident prohibited further work of the kind.
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. This began Edison's long streak of
entrepreneurial ventures, as he discovered his talents as a businessman. These
talents eventually led him to found 14 companies, including General Electric, which is still one of the largest publicly traded
companies in the world.
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 J.U. 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 the Grand Trunk Railway.
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 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 lead–acid 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.
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, (U.S. Patent 90,646), which was granted on June 1, 1869.
On December 25, 1871, Edison married 16-year-old Mary Stilwell
(1855–1884), whom he had met two months earlier; she was an employee at one of
his shops. They had three children:
·
Marion Estelle Edison
(1873–1965), nicknamed "Dot"
·
Thomas Alva Edison,
Jr. (1876–1935), nicknamed "Dash"
·
William Leslie Edison
(1878–1937) Inventor, graduates of the Sheffield Scientific School at Yale,
1900.[
Mary Edison died at age 29 on August 9, 1884, of unknown causes:
possibly from a brain tumor or a morphine overdose. Doctors frequently prescribed morphine to women in those years
to treat a variety of causes, and researchers believe that some of her symptoms
sounded as if they were associated with morphine poisoning.
On February 24, 1886, at the age of thirty-nine, Edison married
the 20-year-old Mina Miller (1865–1947) in Akron, Ohio. 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:
·
Madeleine Edison
(1888–1979), who married John Eyre Sloane.
·
Charles Edison (1890–1969), Governor of New Jersey (1941 – 1944), who took over his father's company and
experimental laboratories upon his father's death.
·
Theodore Miller Edison (1898–1992), (MIT Physics 1923), credited with more than 80
patents.
Mina outlived Thomas Edison, dying on August 24, 1947.
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