Edison, Thomas Alva (
1847-1931 ), American inventor.
Been born in Milan ( Ohio), Edison frequents the school only three
months. At the age of twelve years, while he is a newspaper seller,
it(he) begins to experience on mechanical and electric instruments.
In 1862, it(he) bases a newspaper with weekly appearance, Grand Trunk
Herald, and prints him(it) in a provided him with coach, which is
also of use to him(her) as laboratory. To reward for having saved
him(it) the life of a child, one teaches him(her) the telegraphy and
he becomes an operator of telegraph. It is there that it(he)
makes(does) its(his) first invention : a telegraph duplex
apartment which allows to pass on automatically messages on another
line, without the intervention of an operator.
In 1876, thanks to the sale of devices of telegraphy, Edison collects
enough money(silver) to create his(her) own laboratory. The biggest
realization in telegraphy is the simultaneous transmission of several
messages on the same line which multiplies the capacities of the
telegraph. It(he) invents also the microphone with cartridge of
carbon, realization important for the development of the telephone.
In 1877, Edison ends a record player in which the sound is
registered(recorded) mechanically on a cylinder covered with metallic
paper. Two years later, it(he) presents the electric light bulb to
incandescence, maybe the most famous of its(his) inventions (to see
Lighting). In 1882, it(he) develops and installs(settles) the first
power plant of the world, in New York. However, the used direct
current should leave the place informed alternate, of more effective
employment(use), developed by Nikola Tesla and George Westinghouse.
In 1887, Edison enlarges his(her) laboratory and installs(settles) it
to West Orange, in New Jersey (he was previously for Menlo
Park). In 1888, it(he) invents Kinétoscope, first machine to
produce images animated(stimulated) by fast succession of individual
sights. Later, it(he) invents a battery(drum kit) (an alkaline
battery nickel - iron), improves also the record player (system with
disc and with diamond). By synchronizing its(his) record player and
its(his) Kinétoscope, it(he) produces, in 1913 , the first
sound film (to see American, cinema). The other discoveries include
the machine in ronéotyper, the microtasimètre (used to
discover weak changes in temperature) and a method of telegraphy
without thread to communicate with trains in traffic. When bursts the
First World war, Edison conceives, builds and makes work factories of
chemicals. In 1915, he is named a president of the consultative
Committee of the American navy. The later works consist mainly in
perfecting the inventions. Edison makes patent on the whole more than
one thousand invented. More technologist than scientist, it(he)
brings few(little) of new data to the scientific knowledge. In 1883,
however, it(he) observes the stream of electrons emitted(uttered) by
a warmed strand: the effect Edison, today widely used in electronics.
In 1878, Edison is made(done) chevalier of the Legion of Honnour
and, in 1889 , commander of the Legion of Honour. In 1892, it(he) is
decorated with Albert Medal of the Royal Society of Arts British and,
in 1928 , it(he) receives the golden medal of the Congress for the
development and the implemented(operated) of inventions which
revolutionized the civilization during the last century.
Still thank you mister Edison for