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Television
debuted as a scanning device invented in 1883 by the german Paul
Nipkow. Images could be broken down into miniscule pieces, using
a rotating disk with spiralling perforations. German Paul Gottlieb
Nipkow patented the Nipkow Disc in 1884. This flat circular disc
was perforated with tiny holes that spiralled from the centre to
the rim. The disc revolved in front of your eye as the image was
scanned all over the disc. Later, Scotsman John Logie Baird added
a photoelectric cell into the system. The cell could translate light
into an electric signal, which could play back the image. Despite
the advances, the disc still didn't succeed. An american named Charles
Francis Jenkins experimented into the 1920s with this invention.
Elaborations of this disk were used to broadcast silhouettes and
in 1926 television was first publicly demonstrated, using these
shadow pictures. By 1928 outdoor and colour scenes had been broadcasted.
Ernst F. W. Alexanderson tested television daily and on September
11, 1928, "The Queen's Messenger", the first ever dramatic television
production, was broadcast. Sound was played on a radio station.
Several other
scientists from several different countries all contributed to the
evolution of the television; cathode-ray tubes, the brainchild of
Englishman Alan Cambell Swinson, were perfected and patented by
the RussianBoris Rosing. Television was once again demonstrated
in 1939 at the New York World's Fair. This was the year that the
first public television sets were produced by the DuMont laboratories
of an engineering graduate from Rensselaer Polytechnic Institute.
NBC commenced telecasts in 1932, and during the 30's the news about
television started to spread. The BBC got in on the action, taking
control of TV. In '36 RCA began testing broadcasts from the Empire
State Building at the speed of 30 frames per second. CBS installed
a television system in the Chrysler Building. President Roosevelt
was the first president to be on television.
Official network
broadcasts began on February 1st, 1940, and in 1941 WNBT New York
was the first commercial station with 15 hours per week of television
programs. The events which unfolded that year at Pearl Harbour were
the subject of the first ever television newscast on December 7,
1941.
Unfortunately,
with the American involvement in World War II, television development
ground to a halt. All available resources were being used for the
war effort. Yet, in 1945, NBC picked up where they had left off
and began network television. Others followed, and 3 years later
there were 36 television stations with 70 more waiting in the wings-vying
for the attention of the owners of the one million television sets
in use. There was a freeze on new stations in 1948 which continued
for several years due to the Korean War. However, in 1952 it was
lifted and by 1954 90% of the USA had television coverage, and in
1953 specifications were adopted for colour television sets.
In 1969, 200
000 people experienced Neil Armstrong's moon walk, and in 1994,
an estimated 2 billion viewers watched the final game of Soccer's
World Cup '94. These life-touching experiences prove just how monumental
this communication technology is, and serve as evidence that television
will live on as an incredible icon of 20th century society. 45000 BCE to 1605 CE | 1621 to 1807 | 1814 to 1838 | 1839 to 1858 | 1860 to 1877 | 1878 to 1891 | 1893 to 1920 | 1920 to 1937 | 1930 to 1965 | 1965 to 1996
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