Who invented the first TV?
Today it is difficult to imagine our world without telecommunications.After all, sometimes so eager to come to after a long day, lie down on the sofa near the TV and watch your favorite show or your favorite TV shows.But has anyone thought about who invented television?Under what circumstances would it be?And when it happened?Let's dive into the history of this "miracle technology".
In fact, it is difficult to understand who invented the first TV.Many scientists have taken part in it.And not even a dozen years it took to invent it.Let's try to start from the beginning.
That light affects the electricity (photoelectric effect), first discovered Heinrich Hertz (German physicist) in 1887.He painted his observations in detail, but was not able to clearly explain this phenomenon.Alexander Stoletov in February 1888, was able to find some regularities of the photoelectric effect.He also has developed the "electric eye" - a prototype of solar cells.Later this phenomenon many scientists have tried to explain, but only one of them was able to fully explain the nature of the photoelectric effect.He was Albert Einstein (1905).
At the same time there were unimportant events that are directly associated with the advent of TV and television in general.For example, the English physicist William Crookes in 1879 created the phosphor (a substance that glow when exposed to cathode rays).And in 1887, German physicist Karl Braun introduced the initial version of the CRT (cathode ray tube).
scientist from France - Maurice Leblanc and scientist from America - E. Sawyer, independently established the main principle of television work.According to this principle, in order to convey the image you want to scan frame by frame it fast, which later transformed into an electrical signal.But the question of the electrical signal transfer was dropped by itself, because at the time Popov has created a radio.
Boris Rosing in 1907 was able to prove that, as we get the picture, due to kinescope Brown.Vladimir Zworykin, being a Russian emigrant, in 1933 in the United States showed Ike (transmission electron tube).
So Zvorykina we consider the "father" of modern television.A first electronic television was developed in US research labs, and that led Zworykin.Somewhat later, in 1939, the same laboratory television was demonstrated for mass production.