All Topics  
Thomas Edison

 
Thomas Edison

   Email Print
   Bookmark   Link






 

Thomas Edison



 
 
Thomas Alva Edison (February 11, 1847 – October 18, 1931) was an American inventor
Inventor

An inventor is a person who creates or discovers a new method, form, device or other useful means. The word inventor comes form the latin verb invenire, invent-, to find....
 and businessman who developed many devices that greatly influenced life around the world, including the phonograph
Phonograph

The record player, phonograph or gramophone was the most common device for playing Sound recording and reproduction sound from the 1870s through the 1980s....
 and the long-lasting, practical electric light bulb. Dubbed "The Wizard
Magician (fantasy)

A magician, sorcerer, wizard, or a person known under one of Magician #Names and terminology in fiction is someone who uses or practices Magic that derives from supernatural or occult sources....
 of Menlo Park
Edison, New Jersey

Edison Township is a Township in Middlesex County, New Jersey, United States. As of the United States 2000 Census, the township had a total population of 97,687, making it at the time the List of municipalities in New Jersey ....
" by a newspaper reporter, he was one of the first inventors to apply the principles of mass production
Mass production

Mass production is the production of large amounts of standardized products, including and especially on assembly lines. The concepts of mass production are applied to various kinds of products, from fluids and particulates handled in bulk to discrete solid parts to assemblies of such parts ....
 and large teamwork to the process of invention
Invention

An invention is the creation of a new configuration, composition of matter, device, or process. Some inventions are based on pre-existing models or ideas....
, and therefore is often credited with the creation of the first industrial research laboratory.

Edison is considered one of the most prolific inventors in history, holding 1,093
List of Edison patents

Below is a list of Edison patents. Thomas Edison was an inventor who, it is said, accumulated 1500-plus patents worldwide for his inventions. Nearly 1100 of Edison's patents were in the United States, but other patents were approved in countries around the globe....
 U.S.






Discussion
Ask a question about 'Thomas Edison'
Start a new discussion about 'Thomas Edison'
Answer questions from other users
Full Discussion Forum



Recent Posts












Timeline

1868   Thomas Edison applied for his first patent, the electric vote recorder.

1876   Thomas Edison receives a patent for his mimeograph.

1877   Thomas Edison announces his invention of the phonograph, a machine that can record sound (this is considered to be Edison's first great invention) (Edison demonstrated the device for the first time on November 29).

1878   The phonograph is patented by Thomas Edison

1879   Using a filament of carbonized thread, Thomas Edison tests the first practical electric light bulb (it lasted 13½ hours before burning out).

1879   Thomas Edison demonstrates incandescent lighting to the public for the first time (Menlo Park, New Jersey).

1880   Founding of ''Science'' by Thomas Edison.

1880   In Menlo Park, New Jersey, Thomas Edison performs the first test of his electric railway.

1881   Thomas Edison and Alexander Graham Bell form the Oriental Telephone Company

1883   The first electric lighting system employing overhead wires begins service (Roselle, New Jersey) It was built by Thomas Edison.







Encyclopedia


Thomas Alva Edison (February 11, 1847 – October 18, 1931) was an American inventor
Inventor

An inventor is a person who creates or discovers a new method, form, device or other useful means. The word inventor comes form the latin verb invenire, invent-, to find....
 and businessman who developed many devices that greatly influenced life around the world, including the phonograph
Phonograph

The record player, phonograph or gramophone was the most common device for playing Sound recording and reproduction sound from the 1870s through the 1980s....
 and the long-lasting, practical electric light bulb. Dubbed "The Wizard
Magician (fantasy)

A magician, sorcerer, wizard, or a person known under one of Magician #Names and terminology in fiction is someone who uses or practices Magic that derives from supernatural or occult sources....
 of Menlo Park
Edison, New Jersey

Edison Township is a Township in Middlesex County, New Jersey, United States. As of the United States 2000 Census, the township had a total population of 97,687, making it at the time the List of municipalities in New Jersey ....
" by a newspaper reporter, he was one of the first inventors to apply the principles of mass production
Mass production

Mass production is the production of large amounts of standardized products, including and especially on assembly lines. The concepts of mass production are applied to various kinds of products, from fluids and particulates handled in bulk to discrete solid parts to assemblies of such parts ....
 and large teamwork to the process of invention
Invention

An invention is the creation of a new configuration, composition of matter, device, or process. Some inventions are based on pre-existing models or ideas....
, and therefore is often credited with the creation of the first industrial research laboratory.

Edison is considered one of the most prolific inventors in history, holding 1,093
List of Edison patents

Below is a list of Edison patents. Thomas Edison was an inventor who, it is said, accumulated 1500-plus patents worldwide for his inventions. Nearly 1100 of Edison's patents were in the United States, but other patents were approved in countries around the globe....
 U.S. patent
Patent

A patent is a set of exclusive rights granted by a state to an inventor or his assignee for a term of patent in exchange for a disclosure of an invention....
s in his name, as well as many patents in the United Kingdom, France and Germany. He is credited with numerous inventions that contributed to mass communication and, in particular, telecommunications. His advanced work in these fields was an outgrowth of his early career as a telegraph operator. Edison originated the concept and implementation of electric-power generation and distribution to homes, businesses, and factories - a crucial development in the modern industrialized world. His first power plant was on Manhattan Island, New York
New York

The State of New York is a U.S. state in the Mid-Atlantic States and Northeastern United States regions of the United States and is the nation's List of U.S....
.

Early life

Young Thomas Edison
Thomas Edison was born in Milan, Ohio
Milan, Ohio

Milan is a village #Ohio in Erie County, Ohio and Huron County, Ohio counties in the U.S. state of Ohio. The population was 1,445 at the United States Census 2000....
, and grew up in Port Huron, Michigan
Port Huron, Michigan

Port Huron is a city in the U.S. state of Michigan and the county seat of St. Clair County, Michigan. The population was 32,338 at the 2000 United States Census....
. He was the seventh and last child of Samuel "The Iron Shovel" Edison, Jr. (1804–1896) (born in Marshalltown, Nova Scotia
Marshalltown, Nova Scotia

Marshalltown is a rural community located just west of Digby, Nova Scotia, on Digby Neck, an isthmus of Nova Scotia, Canada, between the Bay of Fundy and Saint Mary's Bay....
, Canada) and Nancy Matthews Elliott (1810–1871). He considered himself to be of Dutch ancestry. In school, the young Edison's mind often wandered, and his teacher, the Reverend Engle, was overheard calling him "addled." This ended Edison's three months of official schooling. Edison recalled later, "My mother was the making of me. She was so true, so sure of me; and I felt I had something to live for, someone I must not disappoint." His mother then home schooled
Homeschooling

Homeschooling or homeschool is the education of children at home, typically by parents or professional tutors, rather than in a public school or private school....
 him. Much of his education came from reading R.G. Parker's School of Natural Philosophy
School of natural philosophy

Richard Green Parker's School of Natural Philosophy is the scientific textbook credited with inspiring the inventor Thomas Edison....
 and The Cooper Union. Edison developed hearing problems at an early age. The cause of his deafness has been attributed to a bout of scarlet fever
Scarlet fever

Scarlet fever is a disease caused by an exotoxin released by Streptococcus pyogenes. The term Scarlatina may be used interchangeably with Scarlet Fever, though it is commonly used to indicate the less acute form of Scarlet Fever that is often seen since the beginning of the twentieth century....
 during childhood and recurring untreated middle ear infections. Around the middle of his career Edison attributed the hearing loss 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 was forced to move to Port Huron
Port Huron, Michigan

Port Huron is a city in the U.S. state of Michigan and the county seat of St. Clair County, Michigan. The population was 32,338 at the 2000 United States Census....
, Michigan
Michigan

Michigan is a Midwestern United States U.S. state of the United States of America. It was named after Lake Michigan, whose name is a French adaptation of the Anishinaabe language term mishigama, meaning "large water" or "large lake"....
, when the railroad bypassed Milan in 1854, but his life there was bittersweet. He sold candy and newspapers on trains running from Port Huron to Detroit, as well as vegetables that he sold to supplement his income. 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
General Electric

The General Electric Company, or GE is a multinational corporation United States technology and Service s conglomerate incorporated in the State of New York....
, which is still in existence, and one of the largest publicly traded companies in the world.

Edison became a telegraph
Telegraphy

Telegraphy is the long-distance transmission of written messages without physical transport of letters. Radiotelegraphy or wireless telegraphy transmits messages using radio....
 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
Mount Clemens, Michigan

Mount Clemens is a city in the U.S. state of Michigan. As of the United States Census, 2000, the city population was 17,312. It is the county seat of Macomb County, 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
Ontario

Ontario is a Provinces and territories of Canada located in the Central Canada part of Canada, the largest by population and second largest, after Quebec, in total area....
, on the Grand Trunk Railway
Grand Trunk Railway

The Grand Trunk Railway was a Rail transport system which operated in the Canada provinces of Quebec and Ontario, as well as the United States states of Connecticut, Maine, Massachusetts, New Hampshire, and Vermont....
. In 1866, at the age of 19, Thomas Edison moved to Louisville, Kentucky
Louisville, Kentucky

Louisville is Kentucky's largest city and county seat of Jefferson County, Kentucky. The city's estimated population as of 2006 is listed as 557,789, with a population of 1,233,733 in the Louisville-Jefferson County, KY-IN Metropolitan Statistical Area....
, where as an employee of Western Union
Western Union

The Western Union Company is a financial services and communications company based in the United States. Its North American headquarters is at Englewood, Colorado, and its international marketing and commercial services headquarters are in Montvale, New Jersey....
 he worked the Associated Press
Associated Press

The Associated Press is an Media of the United States news agency. The AP is a cooperative owned by its contributing newspapers, Radio station and Television station stations in the United States, which both contribute stories to the AP and use material written by its staffers....
 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 battery
Lead-acid battery

Lead-acid batteries, invented in 1859 by France physicist Gaston Plant?, are the oldest type of rechargeable battery. Despite having the second lowest energy-to-weight ratio and a correspondingly low energy-to-volume ratio, their ability to supply high surge currents means that the cells maintain a relatively large power-to-weight ratio....
 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
Franklin Leonard Pope

Franklin Leonard Pope was an American engineer, explorer, and inventor....
, who allowed the impoverished youth to live and work in the basement of his Elizabeth
Elizabeth, New Jersey

Elizabeth is a City in Union County, New Jersey, New Jersey, in the United States. As of the United States Census, 2000, the city had a total population of 120,568, making it New Jersey's List of municipalities in New Jersey ....
, New Jersey
New Jersey

New Jersey is a state in the Mid-Atlantic States and Northeastern United States regions of the United States. It is bordered on the north by New York, on the east by the Hudson River and the Atlantic Ocean, on the southwest by Delaware, and on the west by Pennsylvania....
 home. Some of Edison's earliest inventions were related to telegraphy, including a stock ticker
Ticker tape

Ticker tape was used by ticker tape machines, the Ticker tape timer, stock ticker machines, or just stock tickers....
. His first patent
Patent

A patent is a set of exclusive rights granted by a state to an inventor or his assignee for a term of patent in exchange for a disclosure of an invention....
 was for the electric vote recorder, (U. S. Patent 90,646), which was granted on June 1, 1869.

Marriages and children

On December 25, 1871, Edison married 16-year-old Mary Stilwell, whom he had met two months earlier as 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)


Mary Edison died on August 9, 1884, possibly from a brain tumor.

On February 24, 1886, at the age of thirty nine, Edison married 20-year-old Mina Miller in Akron, Ohio
Akron, Ohio

Akron is a city in the U.S. state of Ohio and the county seat of Summit County, Ohio. In 2007, its population was estimated to be 207,934. The municipality is located in northeastern Ohio on the Cuyahoga River between Cleveland, Ohio to the north and Canton, Ohio to the south, approximately 60 miles west of the Pennsylvania border....
. She was the daughter of inventor Lewis Miller, co-founder of the Chautauqua Institution
Chautauqua Institution

The Chautauqua Institution is a non-profit adult education center and summer resort located on 750 acres in Chautauqua, New York, 17 miles northwest of Jamestown, New York in the extreme western part of New York State....
 and a benefactor of Methodist charities. They also had three children:
  • Madeleine Edison (1888–1979), who married John Eyre Sloane
  • Charles Edison
    Charles Edison

    Charles Edison , son of Thomas Edison, was a businessman, Assistant and then United States Secretary of the Navy, and served as the List of Governors of New Jersey Governor of New Jersey of New Jersey....
     (1890–1969), who took over the company upon his father's death and who later was elected Governor
    Governor

    A governor is a governing official, usually the Executive of a non-sovereign level of government, ranking under the head of state. In federations, a governor may be the title of each appointed or elected politician who governs a constitutive state....
     of New Jersey
    New Jersey

    New Jersey is a state in the Mid-Atlantic States and Northeastern United States regions of the United States. It is bordered on the north by New York, on the east by the Hudson River and the Atlantic Ocean, on the southwest by Delaware, and on the west by Pennsylvania....


Mina outlived Thomas Edison, dying on August 24, 1947.

Beginning his career

Thomas Edison began his career as an inventor in Newark, New Jersey
Newark, New Jersey

Newark is the largest City in New Jersey, and the county seat of Essex County, New Jersey. Newark has a population of 281,402, making it not only List of Municipalities in New Jersey but also the 65th List of United States cities by population Newark is also home to major corporations, such as Prudential Financial....
, with the automatic repeater and his other improved telegraphic
Telegraphy

Telegraphy is the long-distance transmission of written messages without physical transport of letters. Radiotelegraphy or wireless telegraphy transmits messages using radio....
 devices, but the invention which first gained him fame was the phonograph
Phonograph

The record player, phonograph or gramophone was the most common device for playing Sound recording and reproduction sound from the 1870s through the 1980s....
 in 1877. 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, where he lived. His first phonograph recorded on tinfoil
Tin

Tin is a chemical element with the symbol Sn and atomic number 50. Tin is obtained chiefly from the mineral cassiterite, where it occurs as an oxide, SnO2....
 around a grooved cylinder and had poor sound quality. The tinfoil recordings could only be replayed a few times. In the 1880s, a redesigned model using wax-coated cardboard cylinders was produced by Alexander Graham Bell
Alexander Graham Bell

Alexander Graham Bell was an eminent scientist, Innovation and innovator who is credited with inventing the first practical telephone.Bell's father, grandfather, and brother had all been associated with work on elocution and speech, and both his mother and wife were deaf, profoundly influencing Bell's life's work....
, Chichester Bell
Chichester Bell

Chichester Bell was a cousin to Alexander Graham Bell and instrumental in developing improved versions of the phonograph.They created the Volta Laboratory Association to hold their patents....
, and Charles Tainter
Charles Sumner Tainter

Charles Sumner Tainter was an United States engineer and inventor, best known for his collaborations with Alexander Graham Bell, Chichester Bell and Alexander's father-in-law Gardiner Hubbard, and Tainter's improvements to Thomas Alva Edison's phonograph, resulting in the graphophone, one version of which was the first dictaphone....
. This was one reason that Thomas Edison continued work on his own "Perfected Phonograph."

Menlo Park (1876-1881)

Menlo Park Laboratory
Edison Bulb
Edison's major innovation was the first industrial research lab, which was built in Menlo Park, New Jersey. It was built with the funds from the sale of Edison's quadruplex telegraph
Quadruplex telegraph

The Quadruplex telegraph is a type of electrical telegraph which allows a total of four separate signals to be transmitted and received on a single wire at the same time Quadruplex telegraphy thus implements a form of multiplexer ....
. 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. He was surprised to hear them offer $10,000, which he gratefully accepted. 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 work under his direction. His staff was generally told to carry out his directions in conducting research, and he drove them hard to produce results. The large research group, which included engineers and other workers, based much of their research on work done by others before them.

William J. Hammer, a consulting electrical engineer, began his duties as a laboratory assistant to Edison in December 1879. He assisted in experiments on the telephone
Telephone

The telephone is a telecommunications device that is used to transmitter and receive electronically or digitally encoded sound between two or more people conversing....
, phonograph
Phonograph

The record player, phonograph or gramophone was the most common device for playing Sound recording and reproduction sound from the 1870s through the 1980s....
, electric railway
Railway electrification system

A Railway electrification system supplies Electric potential energy to railway locomotives and multiple units so that they can operate without having an on-board Prime mover ....
, iron ore
Iron ore

Iron ores are Rock and minerals from which metallic iron can be economically extracted. The ores are usually rich in iron oxides and vary in colour from dark grey, bright yellow, deep purple, to rusty red....
 separator, electric lighting
Incandescent light bulb

The incandescent light bulb, incandescent lamp or incandescent light globe is a source of electric light that works by incandescence, ....
, 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. In 1880, he was appointed chief engineer of the Edison Lamp Works. In his first year, the plant under General Manager Francis Robbins Upton
Francis Robbins Upton

Francis Robbins Upton was an United States physicist and mathematician....
 turned out 50,000 lamps. According to Edison, Hammer was "a pioneer of incandescent electric lighting".

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. About a dozen were design patents, which protect an ornamental design for up to a 14-year period. Like most patents, the inventions he described were improvements over prior art
Prior art

Prior art , in most systems of patent law, constitutes all information that has been made available to the public in any form before a given date that might be relevant to a patent's claims of originality....
. The phonograph patent, on the other hand, was unprecedented as the first device to record and reproduce sounds. Edison did not invent the first electric light bulb, but instead invented the first commercially practical incandescent light. Several designs had already been developed by earlier inventors including the patent he purchased from Henry Woodward
Henry Woodward (inventor)

Sorry, no overview for this topic
 and Mathew Evans
Mathew Evans

Matthew Evans is one of two Canadians who developed and patented an incandescent light bulb, on July 24, 1874, five years before Thomas Edison's U.S....
, Moses G. Farmer
Moses G. Farmer

Moses Gerrish Farmer was an electrical engineer and inventor. Farmer was a member to the AIEE, later known as the IEEE....
, Joseph Swan
Joseph Swan

Sir Joseph Wilson Swan was an England physicist and chemist, most famous for the invention of the incandescent light bulb.The school named after him, Joseph Swan School, is in Gateshead, near Kells Lane, Low Fell where Joseph Swan lived....
, James Bowman Lindsay
James Bowman Lindsay

James Bowman Lindsay was a Scottish inventor and author. He is credited with early developments in several fields, such as incandescent lighting and telegraphy....
, William E. Sawyer
William E. Sawyer

William Edward Sawyer was an American inventor whose contribution was primarily in the field of electric engineering and electric lighting.His primary inventions include:...
, Sir Humphry Davy, and Heinrich Göbel
Heinrich Göbel

Heinrich G?bel, or later: Henry Goebel , born in Germany, was a precision mechanic and inventor, an early pioneer who independently developed designs for an incandescent light bulb....
. Some of these early bulbs had such flaws as an extremely short life, high expense to produce, and high electric current drawn, making them difficult to apply on a large scale commercially. In 1878, Edison applied the term filament to the element
Electrical element

The concept of electrical elements is used in the circuit analysis of electrical networks. Any electrical network can be modeled by decomposing it down to multiple, interconnected electrical elements in a Schematic diagram#Electronic industry or circuit diagram....
 of glowing wire carrying the current, although the English inventor Joseph Swan
Joseph Swan

Sir Joseph Wilson Swan was an England physicist and chemist, most famous for the invention of the incandescent light bulb.The school named after him, Joseph Swan School, is in Gateshead, near Kells Lane, Low Fell where Joseph Swan lived....
 had used the term prior to this. Edison took the features of these earlier designs and set his workers to the task of creating longer-lasting bulbs. By 1879, he had produced a new concept: a high resistance lamp in a very high vacuum, which would burn for hundreds of hours. While the earlier inventors had produced electric lighting in laboratory conditions, dating back to a demonstration of a glowing wire by Alessandro Volta
Alessandro Volta

Count Alessandro Antonio Anastasio Volta was a Lombardy Physics known especially for the development of the first cell in 1800....
 in 1800, Edison concentrated on commercial application, and was able to sell the concept to homes and businesses by mass-producing relatively long-lasting light bulbs and creating a complete system for the generation and distribution of electricity
Electricity

Electricity is a general term that encompasses a variety of phenomena resulting from the presence and flow of electric charge. These include many easily recognizable phenomena such as lightning and static electricity, but in addition, less familiar concepts such as the electromagnetic field and electromagnetic induction....
.

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". 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, minx, camels ...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 on.

Over his desk, Edison displayed a placard with Sir Joshua Reynolds' famous quote: "There is no expedient to which a man will not resort to avoid the real labor of thinking." This slogan was reputedly posted at several other locations throughout the facility.

With Menlo Park, Edison had created the first industrial laboratory concerned with creating knowledge and then controlling its application.

Carbon telephone transmitter

In 1877–1878, Edison invented and developed the carbon microphone
Carbon microphone

The carbon microphone, also known as a carbon button microphone or a carbon transmitter, is a sound-to-electrical signal transducer consisting of two metal plates separated by granules of carbon....
 used in all telephones along with the Bell receiver until the 1980s. After protracted patent litigation, in 1892 a federal court ruled that Edison—and not Emile Berliner
Emile Berliner

Emile Berliner was a Germany-born United States inventor, best known for developing the gramophone record gramophone . He founded The Berliner Gramophone Company in 1895, The Gramophone Company in London, England, in 1897, Deutsche Grammophon in Hanover, Germany, in 1898 and Berliner Gramophone#Berliner Gram-o-phone Company of Canada in Mon...
—was the inventor of the carbon microphone. The carbon microphone was also used in radio broadcasting and public address work through the 1920s.

Electric light

Thomas Edison, 1878
After many experiments with platinum
Platinum

Platinum is a chemical element with the chemical symbol Pt and an atomic number of 78. Its name is derived from the Spanish term platina del Pinto, which is literally translated into "little silver of the Pinto River." It is in Group 10 of the periodic table of elements....
 and other metal filaments, Edison returned to a carbon
Carbon

Carbon is a chemical element with chemical symbol C and atomic number 6. As a member of group 14 on the periodic table, it is nonmetallic and tetravalence?making four electrons available to form covalent bond chemical bonds....
 filament. The first successful test was on October 22, 1879, and lasted 40 hours. Edison continued to improve this design and by November 4, 1879, filed for U.S. patent 223,898 (granted on January 27, 1880) for an electric lamp using "a carbon filament or strip coiled and connected to platina contact wires". Although the patent described several ways of creating the carbon filament including "cotton and linen thread, wood splints, papers coiled in various ways", it was not until several months after the patent was granted that Edison and his team discovered a carbonized
Carbonization

Carbonization or Carbonisation is the term for the conversion of an organic substance into carbon or a carbon-containing residue through pyrolysis or destructive distillation....
 bamboo
Bamboo

The bamboos are a group of woody perennial plant evergreen plants in the true grass family Poaceae, subfamily Bambusoideae, tribe Bambuseae....
 filament that could last over 1,200 hours.

Edison allegedly bought light bulb U.S. patent 181,613 of Henry Woodward
Henry Woodward (inventor)

Sorry, no overview for this topic
 that was issued August 29, 1876 and obtained an exclusive license to Woodward's Canadian patent. These patents covered a carbon rod in a nitrogen filled glass cylinder, and differed substantially from the first commercially practical bulb invented by Edison.

In 1878, Edison formed the Edison Electric Light Company in New York City with several financiers, including J. P. Morgan
J. P. Morgan

John Pierpont Morgan was an United States financier, banker and art collector who dominated corporate finance and industrial consolidation during his time....
 and the members of the Vanderbilt family
Vanderbilt family

The Vanderbilt family is a significant international family with Dutch people origins, who were highly prominent during the 1800s because of the family patriarch Cornelius Vanderbilt, Wealthy historical figures 2008, who created railroad and shipping empires....
. Edison made the first public demonstration of his incandescent light bulb
Incandescent light bulb

The incandescent light bulb, incandescent lamp or incandescent light globe is a source of electric light that works by incandescence, ....
 on December 31, 1879, in Menlo Park. It was during this time that he said: "We will make electricity so cheap that only the rich will burn candles."

George Westinghouse
George Westinghouse

George Westinghouse, Jr was an United States of America entrepreneur and engineer who invented the railroad air brake and was a pioneer of the electrical industry....
's company bought Philip Diehl's
Philip Diehl (inventor)

Philip H. Diehl was a Germany-United States engineer and inventor who held several U.S. patents, including light bulbs, electric motors for sewing machines and other uses, and ceiling fans....
 competing induction lamp patent rights (1882) for $25,000, forcing the holders of the Edison patent to charge a more reasonable rate for the use of the Edison patent rights and lowering the price of the electric lamp.

On October 8, 1883, the U.S. patent office ruled that Edison's patent was based on the work of William Sawyer and was therefore invalid. Litigation continued for nearly six years, until October 6, 1889, when a judge ruled that Edison's electric light improvement claim for "a filament of carbon of high resistance" was valid. To avoid a possible court battle with Joseph Swan
Joseph Swan

Sir Joseph Wilson Swan was an England physicist and chemist, most famous for the invention of the incandescent light bulb.The school named after him, Joseph Swan School, is in Gateshead, near Kells Lane, Low Fell where Joseph Swan lived....
, whose British patent had been awarded a year before Edison's, he and Swan formed a joint company called Ediswan
Joseph Swan

Sir Joseph Wilson Swan was an England physicist and chemist, most famous for the invention of the incandescent light bulb.The school named after him, Joseph Swan School, is in Gateshead, near Kells Lane, Low Fell where Joseph Swan lived....
 to manufacture and market the invention in Britain.

Mahen Theatre
National Theatre (Brno)

The National Theatre in Brno is the major theater in Brno. It was established in 1884 by model of the National Theatre .Nowadays it consists of three stage :...
 in Brno
Brno

Brno is the second-largest city in the Czech Republic. It was founded in 1243, although the area had been settled since the 5th century. Today Brno has 403,304 inhabitants and is the seat of the Constitutional Court of the Czech Republic, Supreme Court, Supreme Administrative Court, Supreme Prosecutor's Office and Ombudsman....
 in what is now the Czech Republic, was the first public building in the world to use Edison's electric lamps, with the installation supervised by Edison's assistant in the invention of the lamp, Francis Jehl
Francis Jehl

Francis Jehl was a laboratory assistant of Thomas Edison. Jehl studied chemistry at Cooper Union at night. After finishing school at the age of 18, he went to work for Edison at Edison, New Jersey....
.

Electric power distribution

Edison patented an electric distribution system
Electricity distribution

File:Electricity grid simple- North America.svg|thumb|380px|right|Simplified diagram of AC electricity distribution from generation stations to consumers...
 in 1880, which was essential to capitalize on the invention of the electric lamp. On December 17, 1880, Edison founded the Edison Electric Illuminating Company
Edison Illuminating Company

The Edison Illuminating Company was established by Thomas Edison on December 17, 1880, to construct electrical generating stations, initially in New York City....
. The company established the first investor-owned electric utility in 1882 on Pearl Street Station
Pearl Street Station

Pearl Street Station was the first central power station in the United States. It was located at 255-257 Pearl Street in Manhattan on a site measuring 50 by 100 feet....
, New York City
New York City

The City of New York is the List of United States cities by population in the United States, while the New York metropolitan area ranks among the List of urban areas by population....
. It was on September 4, 1882, that Edison switched on his Pearl Street
Pearl Street (Manhattan)

Pearl Street is a street in the Lower Manhattan section of the New York City borough of Manhattan, running northeast from Battery Park to the Brooklyn Bridge, then turning west and terminating at Centre Street ....
 generating station's electrical power distribution system, which provided 110 volt
Volt

The volt is the SI SI derived unit of electric potential difference or electromotive force, commonly known as voltage. It is named in honor of the Lombard physicist Alessandro Volta , who invented the voltaic pile, possibly the first chemical battery ....
s direct current
Direct current

Direct current is the unidirectional flow of electric charge. Direct current is produced by such sources as battery , thermocouples, solar cells, and commutator-type electric machines of the dynamo type....
 (DC) to 59 customers in lower Manhattan
Manhattan

Manhattan is one of the five borough of New York City, located primarily on Manhattan Island at the mouth of the Hudson River.With a United States Census of 1,620,867 living in a land area of 22.96 square miles , Manhattan, coextensive with New York County, is the most population density county in the United States, w...
.

Earlier in the year, in January 1882 he had switched on the first steam generating power station at Holborn Viaduct
Holborn Viaduct

Holborn Viaduct is a bridge in London and the name of the street which crosses it . It links Holborn, via Holborn Circus, with Newgate Street in the City of London, passing over Farringdon Street and the now subterranean River Fleet....
 in London
London

London is the capital of both England and the United Kingdom, and the most populous municipality in the European Union. An important settlement for two millennia, History of London goes back to its founding by the Roman Empire....
. The DC supply system provided electricity supplies to street lamps and several private dwellings within a short distance of the station. On January 19, 1883, the first standardized incandescent electric lighting system employing overhead wires began service in Roselle, New Jersey
Roselle, New Jersey

Roselle is a Borough in Union County, New Jersey, New Jersey, United States. As of the United States 2000 Census, the borough population was 21,274....
.

War of currents

Pyramidparthenon
Edison's true success, like that of his friend Henry Ford
Henry Ford

Henry Ford was the United States founder of the Ford Motor Company and father of modern assembly lines used in mass production. His introduction of the Model T History of the automobile revolutionized transportation and American industry....
, was in his ability to maximize profits through establishment of mass-production systems and intellectual property rights. This dampened the success of less profitable work by others who were focused on inventing longer-lasting high-efficiency technology. George Westinghouse
George Westinghouse

George Westinghouse, Jr was an United States of America entrepreneur and engineer who invented the railroad air brake and was a pioneer of the electrical industry....
 and Edison became adversaries because of Edison's promotion of direct current for electric power distribution instead of the more easily transmitted alternating current
Alternating current

In alternating current the movement of electric charge periodically reverses direction. An electric charge would for instance move forward, then backward, then forward, then backward, over and over again....
 (AC) system invented by Nikola Tesla
Nikola Tesla

Nikola Tesla was an inventor and a mechanical engineer and electrical engineer. Tesla was born in the village of Smiljan near the town of Gospic, in Croatia ....
 and promoted by Westinghouse. Unlike DC, AC could be stepped up to very high voltages with transformer
Transformer

A transformer is a device that transfers electrical energy from one electrical network to another through inductive coupling conductors — the transformer's coils or "windings"....
s, sent over thinner and cheaper wires, and stepped down again at the destination for distribution
Electricity distribution

File:Electricity grid simple- North America.svg|thumb|380px|right|Simplified diagram of AC electricity distribution from generation stations to consumers...
 to users.

In 1887 there were 121 Edison power stations in the United States delivering DC electricity to customers. When the limitations of Direct Current
Direct current

Direct current is the unidirectional flow of electric charge. Direct current is produced by such sources as battery , thermocouples, solar cells, and commutator-type electric machines of the dynamo type....
 (DC) were discussed by the public, Edison launched a propaganda campaign to convince people that Alternating Current
Alternating current

In alternating current the movement of electric charge periodically reverses direction. An electric charge would for instance move forward, then backward, then forward, then backward, over and over again....
 (AC) was far too dangerous to use. The problem with DC was that the power plants could only economically deliver DC electricity to customers about one and a half miles from the generating station, so it was only suitable for central business districts. When George Westinghouse suggested using high-voltage AC instead, as it could carry electricity hundreds of miles with marginal loss of power, Edison waged a "War of Currents
War of Currents

In the "War of Currents" era in the late 1880s, George Westinghouse and Thomas Edison became adversaries due to Edison's promotion of direct current for electric power distribution over alternating current advocated by Westinghouse and Nikola Tesla....
" to prevent AC from being adopted.

Despite Edison's contempt for capital punishment, the war against AC led him to become involved in the development and promotion of the electric chair
Electric chair

Execution by electrocution is an execution method originating in the United States in which the person being put to death is strapped to a specially built wooden chair and electric shock through electrodes placed on the body....
 as a demonstration of AC's greater lethal potential versus the "safer" DC. Edison went on to carry out a brief but intense campaign to ban the use of AC or to limit the allowable voltage for safety purposes. As part of this campaign, Edison's employees publicly electrocuted
Electric shock

An electric shock can occur upon contact of a human's body with any source of voltage high enough to cause sufficient Electric current through the muscles or hair....
 animals to demonstrate the dangers of AC; AC electric currents, particularly near 60 Hz frequency, have a markedly greater potential for inducing fatal “Cardiac Fibrillation” than do DC currents. On one of the more notable occasions, in 1903, Edison's workers electrocuted Topsy the elephant at Luna Park, near Coney Island
Coney Island

Coney Island is a peninsula, formerly an island, in southernmost Brooklyn, New York City, USA, with a beach on the Atlantic Ocean. The Neighbourhood of the same name is a community of 60,000 people in the western part of the peninsula, with Seagate, Brooklyn to its west; Brighton Beach and Manhattan Beach, Brooklyn, New York to its east; a...
, after she had killed several men and her owners wanted her put to death. His company filmed the electrocution.

AC replaced DC in most instances of generation and power distribution, enormously extending the range and improving the efficiency of power distribution. Though widespread use of DC ultimately lost favor for distribution, it exists today primarily in long-distance high-voltage direct current
High-voltage direct current

A high-voltage, direct current electric power transmission system uses direct current for the bulk transmission of electrical power, in contrast with the more common alternating current systems....
 (HVDC) transmission systems. Low voltage DC distribution continued to be used in high density downtown areas for many years but was replaced by AC low voltage network distribution in many central business districts. DC had the advantage that large battery
Battery (electricity)

In electronics, a battery or voltaic cell is a combination of one or more electrochemical cell Galvanic cells which store chemical energy that can be converted into electric potential energy, creating electricity....
 banks could maintain continuous power through brief interruptions of the electric supply from generators and the transmission system. Utilities such as Commonwealth Edison
Commonwealth Edison

Commonwealth Edison is the largest electric utility in Illinois, serving the Chicago and Northern Illinois area. The service territory roughly borders in Iroquois County, Illinois to the south, the Wisconsin border to the north, the Iowa border to the west, and the Indiana border to the East....
 in Chicago
Chicago

Chicago is the largest city in the U.S. state of Illinois and the Midwestern United States, as well as the List of United States cities by population city in the United States with more than 2.8 million residents....
 had rotary converters, also known as motor-generator
Motor-generator

A motor-generator is a device for converting electricity to another form. In some contexts, the other form is mechanical energy; in other contexts, it is a different form of electricity....
 sets , which could change DC to AC and AC to various frequencies in the early to mid-20th century. Utilities supplied rectifiers to convert the low voltage AC to DC for such DC loads as elevators, fans and pumps. There were still 1,600 DC customers in downtown New York City as of 2005, and service was only finally discontinued on November 14, 2007. Most subway systems still are powered by direct current.

Fluoroscopy

Edison is credited with designing and producing the first commercially available fluoroscope
Fluoroscopy

Fluoroscopy is an imaging technique commonly used by physicians to obtain real-time moving images of the internal structures of a patient through the use of a fluoroscope....
, the machine that takes radiographs (colloquially known as "X-rays"). Until Edison discovered that calcium tungstate fluoroscopy screens produced brighter images than the barium platinocyanide
Platinocyanide

A platinocyanide is a Salt containing the anion Pt42-. Barium platinocyanide was important in the discovery of X-rays....
 screens originally used by Wilhelm Röntgen, the technology was only capable of producing very faint images. The fundamental design of Edison's fluoroscope is still in use today, despite the fact that Edison himself abandoned the project after nearly losing his own eyesight and seriously maiming his assistant, Clarence Dally
Clarence Madison Dally

Clarence Madison Dally was an American glassblower, noted as an assistant to Thomas Edison in his work on X-rays and as an early victim of radiodermatitis and its Complication ....
. Dally had made himself an enthusiastic human guinea pig for the fluoroscopy project and in the process been exposed to a poisonous dose of radiation. He later died of injuries related to the exposure. In 1903, a shaken Edison said "Don't talk to me about X-rays, I am afraid of them."

Work relations

Frank J. Sprague
Frank J. Sprague

Frank Julian Sprague was an United States Navy and inventor who contributed to the development of the electric motor, railway electrification system, and elevator....
, a competent mathematician and former naval officer
United States Navy

The United States Navy is the navy of the United States Armed Forces. It is one of the seven uniformed services of the United States. The U.S. Navy currently has approximately 331,682 personnel on active duty as of 31 December 2008 and 124,000 in the United States Navy Reserve....
, was recruited by Edward H. Johnson
Edward H. Johnson

Edward Hibberd Johnson was an inventor and business associate of American inventor Thomas Alva Edison. He was involved in many of Edison's projects, and was a partner in an early organization which evolved into the General Electric Company, one of the largest Fortune 500 companies in the United States....
 and joined the Edison organization in 1883. One of Sprague's significant 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, for example, determining the critical parameters of his electric lighting system including lamp resistance by a sophisticated analysis of Ohm's Law
Ohm's law

Ohm's law applies to electrical circuits; it states that the electric current through a conductor between two points is directly Proportionality to the potential difference or voltage across the two points, and inversely proportional to the Electrical resistance between them....
, Joule's Law
Joule's law

Joule's laws are a pair of laws concerning the heat produced by a current and the energy dependence of an ideal gas to that of pressure, volume, and temperature, respectively....
 and economics
Economics

File:Ballard Farmers' Market - vegetables.jpgEconomics is the Social sciences that studies the Production theory basics, Distribution , and Consumption of Good and Service ....
. A key to Edison's success was an holistic rather than reductionist approach to invention
Edisonian approach

The Edisonian approach to innovation is characterized by trial and error discovery rather than a systematic theoretical approach. This may be a convenient term, but it is an inaccurate and misleading description of the method of invention actually used by Thomas Edison....
, making extensive use of trial and error
Trial and error

Trial and error, or trial by error, is a general method of problem solving for obtaining knowledge, both propositional knowledge and know-how....
. Since Sprague joined Edison in 1883 and Edison's output of patents peaked in 1880, it could be interpreted that the shift towards a reductionist analytical approach may not have been a positive move for Edison. Sprague's important analytical contributions, including correcting Edison's system of mains and feeders for central station distribution, form a counter argument to this. In 1884, Sprague decided his interests in the exploitation of electricity lay elsewhere, and he left Edison to found the Sprague Electric Railway & Motor Company. However, Sprague, who later developed many electrical innovations, always credited Edison for their work together.

Another of Edison's assistants was Nikola Tesla
Nikola Tesla

Nikola Tesla was an inventor and a mechanical engineer and electrical engineer. Tesla was born in the village of Smiljan near the town of Gospic, in Croatia ....
, who claimed that Edison promised him $50,000 if he succeeded in making improvements to his DC generation plants. Tesla claimed that several months later, when he had finished the work and asked to be paid, Edison said, "When you become a full-fledged American you will appreciate an American joke." Tesla immediately resigned. With Tesla's salary of $18 per week, the payment would have amounted to over 53 years pay and the amount was equal to the initial capital of the company. Tesla resigned when he was refused a raise to $25 per week. Although Tesla accepted an Edison Medal later in life and professed a high opinion of Edison as an inventor and engineer, this and other negative series of events concerning Edison remained with Tesla. The day after Edison died, the New York Times contained extensive coverage of Edison's life, with the only negative opinion coming from Tesla who was quoted as saying, "He had no hobby, cared for no sort of amusement of any kind and lived in utter disregard of the most elementary rules of hygiene" and that, "His method was inefficient in the extreme, for an immense ground had to be covered to get anything at all unless blind chance intervened and, at first, I was almost a sorry witness of his doings, knowing that just a little theory and calculation would have saved him 90% of the labour. But he had a veritable contempt for book learning and mathematical knowledge, trusting himself entirely to his inventor's instinct and practical American sense." When Edison was a very old man and close to death, he said, in looking back, that the biggest mistake he had made was that he never respected Tesla or his work.

There were 28 men recognized as Edison Pioneers
Edison Pioneers

History of the Edison Pioneers There were only twenty-eight men who were honored with membership to the group called the Edison Pioneers. Membership in this group represented the highest honor to individuals in the electrical field....
.

Media inventions

The key to Edison's fortunes was telegraphy. With knowledge gained from years of working as a telegraph operator, he learned the basics of electricity. This allowed him to make his early fortune with the stock ticker
Ticker tape

Ticker tape was used by ticker tape machines, the Ticker tape timer, stock ticker machines, or just stock tickers....
, the first electricity-based broadcast system. Edison patented the sound recording and reproducing phonograph in 1878. Edison was also granted a patent for the motion picture camera or "Kinetograph". He did the electromechanical design, while his employee W.K.L. Dickson, a photographer, worked on the photographic and optical development. Much of the credit for the invention belongs to Dickson. In 1891, Thomas Edison built a Kinetoscope
Kinetoscope

The Kinetoscope is an early film exhibition device. Though not a movie projector?it was designed for films to be viewed individually through the window of a cabinet housing its components?the Kinetoscope introduced the basic approach that would become the standard for all cinematic projection before the advent of video: it creates the illusi...
, or peep-hole viewer. This device was installed in penny arcades, where people could watch short, simple films. The kinetograph and kinetoscope were both first publicly exhibited May 20, 1891.

On August 9, 1892, Edison received a patent for a two-way telegraph. In April 1896, Thomas Armat
Thomas Armat

Thomas J. Armat was an United States mechanic and inventor, a pioneer of film best known through the co-invention of the Edison Vitascope....
's Vitascope
Vitascope

Vitascope is an early film projector first demonstrated in 1895 by Charles Francis Jenkins and Thomas Armat. The pair publicly demonstrated an image projection device at the Cotton States and International Exposition in Atlanta, Georgia which they called the "Phantoscope." This prototype of modern film projectors cast images onto a wall or...
, manufactured by the Edison factory and marketed in Edison's name, was used to project motion pictures in public screenings in New York City. Later he exhibited motion pictures with voice soundtrack on cylinder recordings, mechanically synchronized with the film.

Officially the kinetoscope entered in Europe when the rich American Businessman Irving T. Bush
Irving T. Bush

Irving T. Bush was an American businessman. His father was the wealthy industrialist, oil refinery owner, and yachtsman Rufus T. Bush.As founder of the Bush Terminal, Irving T....
 (1869–1948) bought from the Continental Commerce Company of Franck Z. Maguire and Joseph D. Bachus a dozen machines. Bush placed from October 17, 1894 on the first kinetoscopes in London. At the same time the French company Kinétoscope Edison Michel et Alexis Werner bought these machines for the market in France. In the last three months of 1894 The Continental Commerce Company sold hundreds of kinetoscopes in Europe (i.e. the Netherlands and Italy). In Germany and in Austria-Hungary the kinetoscope was introduced by the Deutsche-österreichische-Edison-Kinetoscop Gesellschaft, founded by the Ludwig Stollwerck of the Schokoladen-Süsswarenfabrik Stollwerck & Co of Cologne. The first kinetoscopes arrived in Belgium at the Fairs in early 1895. The Edison's Kinétoscope Français, a Belgian company, was founded in Brussels on January 15, 1895 with the rights to sell the kinetoscopes in Monaco, France and the French colonies. The main investors in this company were Belgian industrialists. On May 14, 1895 the Edison's Kinétoscope Belge was founded in Brussels. The businessman Ladislas-Victor Lewitzki, living in London but active in Belgium and France, took the initiative in starting this business. He had contacts with Leon Gaumont
Léon Gaumont

L?on Gaumont was a France inventor, engineer, and industrialist who was a pioneer of the motion picture industry.L?on Ernest Gaumont, born in Semblancay, Indre-et-Loire was gifted with a mechanical mind which led him to employment manufacturing precision instruments....
 and the American Mutoscope and Biograph Co. In 1898 he also became shareholder of the Biograph and Mutoscope Company for France.

In 1901, he visited the Sudbury area as a mining
Mining

Mining is the extraction of value minerals or other geology materials from the earth, usually from an ore body, vein or seam. Materials recovered by mining include base metals, precious metals, iron, uranium, coal, diamonds, limestone, oil shale, Sodium chloride and potash....
 prospector, and is credited with the original discovery of the Falconbridge ore body. His attempts to actually mine the ore body were not successful, however, and he abandoned his mining claim in 1903. A street in Falconbridge, as well as the Edison Building
Edison Building (Falconbridge)

The Edison Building is a historic building in Greater Sudbury, Ontario. Located at 5 Lindsley Street in the community of Falconbridge, Greater Sudbury, Ontario, the building was constructed in 1969 as the head office for Falconbridge Ltd.'s operations in the Sudbury area....
, which served as the head office of Falconbridge Mines
Falconbridge Ltd.

Falconbridge Limited was a Toronto, Ontario-based natural resources company with operations in 18 countries, involved in the exploration, mining, processing, and marketing of metal and mineral products, including nickel, copper, cobalt, and platinum....
, are named for him.

In 1902, agents of Thomas Edison bribed a theater owner in London
London

London is the capital of both England and the United Kingdom, and the most populous municipality in the European Union. An important settlement for two millennia, History of London goes back to its founding by the Roman Empire....
 for a copy of A Trip to the Moon by Georges Méliès
Georges Méliès

Georges M?li?s , full name Marie-Georges-Jean M?li?s, was a France filmmaker famous for leading many technical and narrative developments in the earliest film....
. Edison then made hundreds of copies and showed them in New York City
New York City

The City of New York is the List of United States cities by population in the United States, while the New York metropolitan area ranks among the List of urban areas by population....
. Méliès received no compensation. He was counting on taking the film to US and recapture the huge cost of it by showing it throughout the US when he realized it has already been showing in the US by Edison. This bankrupted Méliès. Other exhibitors similarly routinely copied and exhibited each others films. To better protect the copyrights on his films, Edison deposited prints of them on long strips of photographic paper with the U.S. copyright office. Many of these paper prints survived longer and in better condition than the actual films of that era.

Edison's favourite movie was The Birth of a Nation
The Birth of a Nation

The Birth of a Nation , is a 1915 in film silent film directed by D. W. Griffith; one of the most innovative of Cinema of the United States....
. He thought that talkies had "spoiled everything" for him. "There isn't any good acting on the screen. They concentrate on the voice now and have forgotten how to act. I can sense it more than you because I am deaf."

In 1908, Edison started the Motion Picture Patents Company
Motion Picture Patents Company

The Motion Picture Patents Company , founded in December 1908, was a trust of all the major American film companies , the leading distributor and the biggest supplier of raw film, Eastman Kodak....
, which was a conglomerate of nine major film studios (commonly known as the Edison Trust). Thomas Edison was the first honorary fellow of the Acoustical Society of America
Acoustical Society of America

The Acoustical Society of America is an international scientific society dedicated to increasing and diffusing the knowledge of acoustics and its practical applications....
, which was founded in 1929.

West Orange and Fort Myers (1886-1931)

Edison moved from Menlo Park after the death of Mary Stilwell and purchased a home known as "Glenmont" in 1886 as a wedding gift for Mina in Llewellyn Park
Llewellyn Park

Llewellyn Park is a gated residential community of 175 homes within West Orange, New Jersey, New Jersey. Llewellyn Park does not have its own municipal government, but operates as part of the Township of West Orange....
 in West Orange, New Jersey
West Orange, New Jersey

West Orange is a Township in central Essex County, New Jersey, New Jersey, United States. As of the United States 2000 Census, the township population was 44,943....
. In 1885, Thomas Edison bought property in Fort Myers
Fort Myers, Florida

Fort Myers is the county seat and commercial center of Lee County, Florida, Florida, United States. Its population was 48,208 in the United States Census 2000....
, Florida
Florida

Florida is a U.S. state located in the Southeastern United States of the United States, bordering Alabama to the northwest and Georgia to the northeast....
, and built what was later called Seminole Lodge as a winter retreat. Edison and his wife Mina spent many winters in Fort Myers where they recreated and Edison tried to find a domestic source of natural rubber.

Henry Ford
Henry Ford

Henry Ford was the United States founder of the Ford Motor Company and father of modern assembly lines used in mass production. His introduction of the Model T History of the automobile revolutionized transportation and American industry....
, the automobile magnate, later lived a few hundred feet away from Edison at his winter retreat in Fort Myers, Florida. Edison even contributed technology to the automobile. They were friends until Edison's death.

In 1928, Edison joined the Fort Myers Civitan Club. He believed strongly in the organization, writing that "The Civitan Club is doing things--big things--for the community, state, and nation, and I certainly consider it an honor to be numbered in its ranks." He was an active member in the club until his death, sometimes bringing Henry Ford to the club's meetings.

The final years

Edison was active in business right up to the end. Just months before his death in 1931, the Lackawanna Railroad implemented electric trains in suburban service from Hoboken
Hoboken, New Jersey

Hoboken is a City in Hudson County, New Jersey, New Jersey, United States. As of the 2000 United States Census, the city's population was 38,577....
 to Gladstone
Gladstone, New Jersey

Gladstone is an unincorporated area within Peapack-Gladstone, New Jersey in Somerset County, New Jersey, New Jersey, United States. The area is served as United States Postal Service ZIP Code 07934....
, Montclair
Montclair, New Jersey

Montclair is a township in Essex County, New Jersey, New Jersey, United States. It is the List of municipalities in New Jersey by population....
 and Dover
Dover, New Jersey

Dover is a Town in Morris County, New Jersey, New Jersey on the Rockaway River. Dover is 39 miles west of New York City and west of Newark, New Jersey....
 in New Jersey. Transmission was by means of an overhead catenary system, with the entire project under Edison's guidance. To the surprise of many, he was at the throttle of the very first MU (Multiple-Unit) train to depart Lackawanna Terminal in Hoboken, driving the train all the way to Dover. As another tribute to his lasting legacy, the same fleet of cars Edison deployed on the Lackawanna in 1931 served commuters until their retirement in 1984, when some of them were purchased by the Berkshire Scenic Railway Museum in Lenox, MA. A special plaque commemorating the joint achievement of both the railway and Edison, can be seen today in the waiting room of Lackawanna Terminal in Hoboken, presently operated by New Jersey Transit.

Edison was said to have been influenced by a fad diet that was popular in the day to that in his last few years "the only liquid he consumed was a pint of milk every three hours". He is reported to have believed this diet would restore his health. However, this tale is doubtful. In 1930, the year before Edison died, Mina said in an interview about him that "Correct eating is one of his greatest hobbies." She also said that during one of his periodic "great scientific adventures", Edison would be up at 7:00, have breakfast at 8:00, and be rarely home for lunch or dinner, implying that he continued to have all three.

Edison became the owner of his Milan, Ohio
Milan, Ohio

Milan is a village #Ohio in Erie County, Ohio and Huron County, Ohio counties in the U.S. state of Ohio. The population was 1,445 at the United States Census 2000....
, birthplace in 1906. On his last visit, in 1923, he was shocked to find his old home still lit by lamps and candles.

Thomas Edison died of complications of diabetes on October 18, 1931, in his home, "Glenmont" in Llewellyn Park
Llewellyn Park

Llewellyn Park is a gated residential community of 175 homes within West Orange, New Jersey, New Jersey. Llewellyn Park does not have its own municipal government, but operates as part of the Township of West Orange....
 in West Orange, New Jersey
West Orange, New Jersey

West Orange is a Township in central Essex County, New Jersey, New Jersey, United States. As of the United States 2000 Census, the township population was 44,943....
, which he had purchased in 1886 as a wedding gift for Mina. He is buried behind the home.

Edisonhouse
Mina died in 1947. Edison's last breath is reportedly contained in a test tube at the Henry Ford
Henry Ford

Henry Ford was the United States founder of the Ford Motor Company and father of modern assembly lines used in mass production. His introduction of the Model T History of the automobile revolutionized transportation and American industry....
 Museum. Ford reportedly convinced Charles Edison to seal a test tube of air in the inventor's room shortly after his death, as a memento. A plaster death mask
Death mask

In Western cultures a death mask is a wax or plaster cast made of a person's face following death. Death masks may be mementos of the dead, or be used for creation of portraits....
 was also made.

Views on politics, religion and metaphysics

Historian Paul Israel has characterized Edison as a "freethinker". Edison was heavily influenced by Thomas Paine's Age of Reason. Edison defended Paine's "scientific deism," saying, "He has been called an atheist, but atheist he was not. Paine believed in a supreme intelligence, as representing the idea which other men often express by the name of deity." In an October 2, 1910 interview in the New York Times Magazine, Edison stated:
Nature is what we know. We do not know the gods of religions. And nature is not kind, or merciful, or loving. If God made me—the fabled God of the three qualities of which I spoke: mercy, kindness, love—He also made the fish I catch and eat. And where do His mercy, kindness, and love for that fish come in? No; nature made us—nature did it all—not the gods of the religions.
Edison was accused of atheism for those remarks, and although he did not allow himself to be drawn into the controversy publicly, he defended himself in a private letter: "You have misunderstood the whole article, because you jumped to the conclusion that it denies the existence of God. There is no such denial, what you call God I call Nature, the Supreme intelligence that rules matter. All the article states is that it is doubtful in my opinion if our intelligence or soul or whatever one may call it lives hereafter as an entity or disperses back again from whence it came, scattered amongst the cells of which we are made."

Nonviolence was key to Edison's moral views, and when asked to serve as a naval consultant for Wold War I, specified he would only work on defensive weapons and later noted, "I am proud of the fact that I never invented weapons to kill." Edison's philosophy of nonviolence extended to animals as well, about which he stated: "Nonviolence leads to the highest ethics, which is the goal of all evolution. Until we stop harming all other living beings, we are still savages."

Tributes


Places named for Edison

Several places have been named after Edison, most notably the town of Edison, New Jersey
Edison, New Jersey

Edison Township is a Township in Middlesex County, New Jersey, United States. As of the United States 2000 Census, the township had a total population of 97,687, making it at the time the List of municipalities in New Jersey ....
. Thomas Edison State College
Thomas Edison State College

Thomas Edison State College is a public institution of higher education located in Trenton, New Jersey. The college offers 12 degrees at the undergraduate level and four master's degrees....
, a nationally-known college for adult learners, is in Trenton, New Jersey
Trenton, New Jersey

Trenton is the Capital of the U.S. state of New Jersey and the county seat of Mercer County, New Jersey. As of 2007, the United States Census Bureau estimated that the City of Trenton had a population of 82,804....
. Two community colleges are named for him: Edison State College in Fort Myers, Florida, and Edison Community College in Piqua, Ohio
Piqua, Ohio

Piqua is a city in Miami County, Ohio, Ohio, United States. The population was 20,738 at the United States Census 2000. It is part of the Dayton, Ohio Greater Dayton....
. There are numerous high schools named after Edison; see Edison High School
Edison High School

Edison High School is the name of many schools named after Thomas Edison:Schools with the full name:*Thomas A. Edison High School — Jamaica, Queens...
.

The City Hotel, in Sunbury, Pennsylvania
Sunbury, Pennsylvania

Sunbury is a city in Northumberland County, Pennsylvania, Pennsylvania, United States. The city is located on the east bank of the Susquehanna River, just downstream of the confluence of its east and west branches....
, was the first building to be lit with Edison's three-wire system. The hotel was re-named The Hotel Edison, and retains that name today.

Three bridges around the United States have been named in his honor (see Edison Bridge).

Museums and memorials

In West Orange, New Jersey, the 13.5 acre (5.5 ha) Glenmont estate is maintained and operated by the National Park Service
National Park Service

The National Park Service is the List of United States federal agencies that manages all List of areas in the United States National Park System, many U.S....
 as the Edison National Historic Site
Edison National Historic Site

The Edison National Historic Site preserves Thomas Edison's laboratory and residence, Glenmont, in West Orange, New Jersey. For more than forty years, the laboratory had a major impact on the lives people worldwide....
. The Thomas Alva Edison Memorial Tower and Museum
Thomas Alva Edison Memorial Tower and Museum

The Thomas Alva Edison Memorial Tower and Museum, also known as the Menlo Park Museum, is a memorial to inventor and businessman Thomas Edison, located in the Menlo Park area of Edison, New Jersey, New Jersey....
 is in the town of Edison, New Jersey. In Beaumont, Texas
Beaumont, Texas

Beaumont is a city in and the county seat of Jefferson County, Texas, Texas, United States, within the Beaumont–Port Arthur, Texas Beaumont?Port Arthur metropolitan area....
, there is an Edison Museum, though Edison never visited there. The Port Huron Museum
Port Huron Museum

The Port Huron Museum is a series of five museums located in Port Huron, Michigan, USA. It includes the Carnegie Center -- Port Huron Museum, Huron Lightship, Thomas Edison Depot Museum, USCGC Bramble , and Fort Gratiot Lighthouse....
, in Port Huron, Michigan
Port Huron, Michigan

Port Huron is a city in the U.S. state of Michigan and the county seat of St. Clair County, Michigan. The population was 32,338 at the 2000 United States Census....
, restored the original depot that Thomas Edison worked out of as a young newsbutcher. The depot has been named the Thomas Edison Depot Museum
Thomas Edison Depot Museum

The Thomas Edison Depot Museum is located underneath the Blue Water Bridge connecting Port Huron, Michigan to Sarnia, Ontario, Canada. The depot is owned and operated by the Port Huron Museum and is the actual depot that inventor Thomas Edison worked out of as a news butcher between 1859 and 1863....
. The town has many Edison historical landmarks, including the graves of Edison's parents, and a monument along the Saint Clair River. Edison's influence can be seen throughout this city of 32,000. In Detroit, the Edison Memorial Fountain in Grand Circus Park was created to honor his achievements. The limestone fountain was dedicated October 21, 1929.

Companies bearing Edison's name

  • Edison General Electric, merged with Thomson-Houston Electric Company
    Thomson-Houston Electric Company

    The Thomson-Houston Electric Company was formed in 1883 when a group of Lynn, Massachusetts investors led by Charles A. Coffin bought out Elihu Thomson and Edwin Houston's American Electric Company from their New Britain, Connecticut investors....
     to form General Electric
    General Electric

    The General Electric Company, or GE is a multinational corporation United States technology and Service s conglomerate incorporated in the State of New York....
  • Commonwealth Edison
    Commonwealth Edison

    Commonwealth Edison is the largest electric utility in Illinois, serving the Chicago and Northern Illinois area. The service territory roughly borders in Iroquois County, Illinois to the south, the Wisconsin border to the north, the Iowa border to the west, and the Indiana border to the East....
    , now part of Exelon
    Exelon

    Exelon Corporation is an electricity generating and distributing company headquartered in Chicago. It was created in October, 2000 by the merger of PECO Energy Company and Unicom, of Philadelphia and Chicago respectively....
  • Consolidated Edison
    Consolidated Edison

    Consolidated Edison, Inc. is one of the largest investor-owned energy companies in the United States, with approximately $14 billion in annual revenues and $33 billion in assets....
  • Edison International
    Edison International

    Edison International is a public utility holding company based in Rosemead, California. Its subsidiaries include Southern California Edison, and un-regulated non-utility assets Edison Mission Energy, a power producer, and Edison Capital....
    • Southern California Edison
      Southern California Edison

      Southern California Edison , the largest subsidiary of Edison International , is the primary electricity supply company for much of Southern California....
    • Edison Mission Energy
      Edison Mission Energy

      Edison Mission Energy is an electricity utility, based in California, USA and owned by Edison International. In the 1990s, EME owned electricity generating assets in Victoria, Australia and 51% of Contact Energy in New Zealand....
    • Edison Capital
  • Detroit Edison
    Detroit Edison

    Detroit Edison, founded in 1903, is an investor-owned Electric company which serves most of Southeast Michigan. Its parent company, DTE Energy Co....
    , a unit of DTE Energy
    DTE Energy

    DTE Energy Co. is a Detroit, Michigan, Michigan-based utility incorporated in 1995 involved in the development and management of energy-related businesses and services nationwide....
  • Edison Sault Electric Company, a unit of Wisconsin Energy Corporation
    Wisconsin Energy Corporation

    Wisconsin Energy Corporation is a company based in Milwaukee, Wisconsin that provides electricity and natural gas throughout Wisconsin and the Upper Peninsula of Michigan....
  • FirstEnergy
    FirstEnergy

    File:FirstEnergyChaseAkronOhio.JPGFirstEnergy Corp. , is a diversified energy company headquartered in Akron, Ohio. Its subsidiaries and affiliates are involved in the generation, transmission, and distribution of electricity, as well as energy management and other energy-related services....
    • Metropolitan Edison
    • Ohio Edison
    • Toledo Edison
  • Edison S.p.A.
    Edison S.p.A.

    Edison S.p.A is the second largest energy company in Italy in the field of electricity and natural gas. It produces, imports and sells electric power and hydrocarbons....
    , a unit of Italenergia
  • Boston Edison
    Boston Edison

    Boston Edison can refer to:*Boston-Edison, a neighborhood in Detroit, Michigan.*Boston Edison Company, an operating unit of NSTAR...
    , a unit of NSTAR
    NSTAR

    NSTAR is a utility company that provides retail electricity and natural gas to customers in eastern and central Massachusetts, including the Boston urban area....
    , formerly known as the Edison Electric Illuminating Company
  • WEEI
    WEEI

    WEEI is a Sports Radio radio station in Boston, Massachusetts that broadcasts on 850 kilohertz from a transmitter in Needham, Massachusetts. The station is one of the top rated sports talk radio stations in the nation....
     radio station in Boston, established by the Edison Electric Illuminating Company (hence the call letters)


Awards named in honor of Edison

The Edison Medal was created on February 11, 1904, by a group of Edison's friends and associates. Four years later the American Institute of Electrical Engineers
American Institute of Electrical Engineers

The American Institute of Electrical Engineers was a United States based organization of electrical engineers that existed between 1884 and 1963 ....
 (AIEE), later IEEE
Institute of Electrical and Electronics Engineers

The Institute of Electrical and Electronics Engineers or IEEE is an international non-profit, professional body for the advancement of technology related to electricity....
, entered into an agreement with the group to present the medal as its highest award. The first medal was presented in 1909 to Elihu Thomson
Elihu Thomson

Elihu Thomson was an electrical engineering and inventor who was instrumental in the founding of major electricity companies in the United States, United Kingdom and France....
 and, in a twist of fate, was awarded to Nikola Tesla
Nikola Tesla

Nikola Tesla was an inventor and a mechanical engineer and electrical engineer. Tesla was born in the village of Smiljan near the town of Gospic, in Croatia ....
 in 1917. It is the oldest award in the area of electrical and electronics engineering
Electrical engineering

Electrical engineering, sometimes referred to as electrical and electronic engineering, is a field of engineering that deals with the study and application of electricity, electronics and electromagnetism....
, and is presented annually "for a career of meritorious achievement in electrical science, electrical engineering or the electrical arts."

In the Netherlands
Netherlands

The Netherlands is a country that is part of the Kingdom of the Netherlands. It is a parliamentary democratic constitutional monarchy. The Netherlands is located in North-West Europe, and bordered by the North Sea to the north and west, Belgium to the south, and Germany to the east....
, the major music awards are named the Edison Award after him.

Honors and awards given to Edison

In 1887, Edison won the Matteucci Medal
Matteucci Medal

The Matteucci Medal was established to award physicists for their fundamental contributions. Under an Italy Royal Decree dated July 10, 1870, the Italian Society of Sciences was authorized to receive a donation from Carlo Matteucci for the establishment of the Prize....
.

He was ranked thirty-fifth on Michael H. Hart
Michael H. Hart

Michael H. Hart is an astrophysicist who has also written three books on history and controversial articles on a variety of subjects.Hart, a graduate of the Bronx High School of Science who enlisted in the U.S....
's 1978 book The 100
The 100

The 100: A Ranking of the Most Influential Persons in History is a 1978 book by Michael H. Hart. It is a ranking of the 100 people who most influenced human history....
, a list of the most influential figures in history. Life
Life (magazine)

File:Coles Phillips2 Life.jpgLife generally refers to three United States magazines:*A humor and general interest magazine published from 1883 to 1936....
 magazine (USA), in a special double issue in 1997, placed Edison first in the list of the "100 Most Important People in the Last 1000 Years", noting that the light bulb he promoted "lit up the world". In the 2005 television series The Greatest American
The Greatest American

The Greatest American was a four-part United States television series hosted by Matt Lauer in 2005. The show featured biographies and lists of influential persons in U.S....
, he was voted by viewers as the fifteenth-greatest.

In 1983, the United States Congress
United States Congress

The United States Congress is the Bicameralism legislature of the Federal government of the United States of the United States of America, consisting of two houses, the United States Senate and the United States House of Representatives....
, pursuant to Senate Joint Resolution 140 (Public Law 97 - 198), designated February 11, Edison's birthday, as National Inventor's Day
Inventor's Day

Inventors' Day is a day of the year set aside by a country to recognise the contributions of inventors. Not all countries recognise Inventors' Day....
.

Other items named after Edison

The United States Navy
United States Navy

The United States Navy is the navy of the United States Armed Forces. It is one of the seven uniformed services of the United States. The U.S. Navy currently has approximately 331,682 personnel on active duty as of 31 December 2008 and 124,000 in the United States Navy Reserve....
 named the USS Edison (DD-439)
USS Edison (DD-439)

USS Edison , a Gleaves class destroyer destroyer, was the first ship of the United States Navy to be named for Thomas Alva Edison, an inventor and businessman who developed many important devices....
, a Gleaves class
Gleaves class destroyer

The Gleaves-class destroyers were a class of 62 destroyers of the United States Navy built 1938?1942, and designed by Gibbs & Cox. The first ship of the class was the USS Gleaves ....
 destroyer
Destroyer

In navy terminology, a destroyer is a fast and maneuverable yet long-endurance warship intended to escort larger vessels in a Naval fleet, convoy or battle group and defend them against smaller, short-range but powerful attackers ....
, in his honor in 1940. The ship was decommissioned a few months after the end of World War II
World War II

World War II, or the Second World War , was a global military conflict which involved a Participants in World War II, including all of the great powers, organised into two opposing military alliances: the Allies of World War II and the Axis powers....
. In 1962, the Navy commissioned USS Thomas A. Edison (SSBN-610)
USS Thomas A. Edison (SSBN-610)

USS Thomas A. Edison , an Ethan Allen class submarine ballistic-missile submarine, was the second ship of the United States Navy to be named for the inventor, Thomas Edison....
, a fleet ballistic missile nuclear-powered submarine. Decommissioned on December 1, 1983, Thomas A. Edison was stricken from the Naval Vessel Register
Naval Vessel Register

The Naval Vessel Register is the official inventory of ships and service craft in custody of or titled by the United States Navy. It contains information on ships and service craft that make up the official inventory of the Navy from the time a vessel is authorized through its life cycle and disposal....
 on April 30, 1986. She went through the Navy’s Nuclear Powered Ship and Submarine Recycling Program at Bremerton, Washington
Washington

Washington is a U.S. state in the Pacific Northwest region of the United States. Washington was carved out of the western part of Washington Territory which had been ceded by Britain in 1846 by the Oregon Treaty as settlement of the Oregon Boundary Dispute....
, beginning on October 1, 1996. When she finished the program on December 1, 1997, she ceased to exist as a complete ship and was listed as scrapped.

In popular culture


See also

  • Thomas Alva Edison Birthplace
    Thomas Alva Edison Birthplace

    Thomas Alva Edison Birthplace is the historic house in which the United States inventor Thomas Edison was born on February 11, 1847. It is located at 9 Edison Drive in Milan, Ohio, Ohio, in the United States....
  • List of Edison patents
    List of Edison patents

    Below is a list of Edison patents. Thomas Edison was an inventor who, it is said, accumulated 1500-plus patents worldwide for his inventions. Nearly 1100 of Edison's patents were in the United States, but other patents were approved in countries around the globe....
  • History of the light bulb
  • List of people on stamps of Ireland
    List of people on stamps of Ireland

    This is a list of people on the postage stamps of the Irish Free State between 1922 and 1937 and on the postage stamps ofRepublic of Ireland since 1937, including the years when they appeared on a stamp....
  • USS Edison (DD-439)
    USS Edison (DD-439)

    USS Edison , a Gleaves class destroyer destroyer, was the first ship of the United States Navy to be named for Thomas Alva Edison, an inventor and businessman who developed many important devices....
  • John I. Beggs
    John I. Beggs

    John Irvin Beggs was an United States entrepreneur, industrialist and financier associated closely with the electric utility boom under Thomas Edison....
  • Animated Hero Classics
    Animated Hero Classics

    Animated Hero Classics is an educational Animated television series of programs co-produced by Nest Family Entertainment and Warner Bros. The series, geared toward elementary school aged children, includes twenty biographies of both female and male scientists, inventors, explorers, and social champions from around the world including Ge...
     - Animated DVD biography series of historical figures, including Thomas Edison


Bibliography



External links

  • at the National Archives.
  • - Wired Magazine
    Wired (magazine)

    Wired is a full-color monthly United States magazine and on-line periodical, published since March 1993, that reports on how technology affects culture, the economy, and politics....
     article about Edison's "macabre form of a series of animal electrocutions using AC."
  • ""