I like new day and night

18/04/2022

In Moscow, regular electronic broadcasting began on March 10, 1939[30]. On this day, the Moscow television center on Shabolovka, using a 17 kW transmitter installed on the Shukhov Tower, broadcast a documentary film about the opening of the 18th Congress of the CPSU (b) [34]. In the future, the programs were broadcast 4 times a week for 2 hours.
In the spring of 1939, more than 100 TK-1 TVs with a screen of 14 × 18 centimeters, produced according to the RCA documentation [18] [35], received transmissions in Moscow. Just like VRK in Leningrad, these TVs were used for collective viewing.
In 1949, the first mass-produced Soviet electronic TV set KVN-49 appeared, designed for the modern decomposition standard of 625 lines.

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Regular electronic television broadcasting in the USSR was first launched by the Experimental Leningrad Television Center (OLTC) on September 1, 1938[34]. To receive these programs in the experimental workshops of VNIIT, 20 copies of the VRK TV (All-Union Radio Committee) with a screen of 13 × 17.5 centimeters were made [18]. The Radist plant produced 17TN-1 TVs, also suitable for receiving OLTC broadcasts [35]. Some of them were used as monitors at the television center, and the rest - for collective viewing in the palaces of culture and factory clubs[34]. The broadcasts took place twice a week.

18/04/2022

The 1936 Berlin Olympics was the first to be televised live. At the same time, both electronic television cameras with a scan of 180 lines and a special film and television system with an intermediate film were used, which made it possible to quickly carry out slow-motion replays of the most interesting moments[29].
The DFR broadcast until 1944, when the Berlin Television Center was destroyed by bombing.
In 1936, regular electronic broadcasting began in Great Britain using what was then considered high-definition television: a 405-line scan developed by Marconi-EMI. The work was led by a native of the Russian Empire, engineer Isaak Yuryevich Schoenberg.
In the USSR, in Moscow and Leningrad, television centers were opened that carried out experimental transmissions using electronic technology. Leningradsky used domestic equipment with a 240-line decomposition standard[30][31]. The Moscow television center broadcast in the "American" standard for 343 lines and was equipped with RCA equipment

18/04/2022

At the Berlin Olympics in 1936, the Olympia-Kanone television camera was used with an electronic scan of 180 lines.
The Great Depression, which coincided with the advent of systems suitable for this, prevented the regular broadcasting of electronic television in the United States from starting.
The world's first television channel broadcasting regularly using electronic technology - DFR ("Deutscher Fernseh-Rundfunk" - "German Television Broadcasting"), was launched in 1934 by the German television and radio company RRG [28].
The 1936 Berlin Olympics was the first to be televised live. At the same time, both electronic television cameras with a scan of 180 lines and a special film and television system with an intermediate film were used, which made it possible to quickly carry out slow-motion replays of the most interesting moments

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The first mechanically scanned WCFL television station went on the air in Chicago on June 12, 1928.[23] Its creator was Ulysses Sanabria[en][24].
On May 19, 1929, for the first time, he used the same radio wave band for the transmission of image and sound, starting the broadcast of the sound accompaniment by the WIBO radio station, and the video signal by the WCFL station. This event can be considered the beginning of modern television.
Since 1931, the "German" mechanical television standard has been used in the USSR with a decomposition into 30 lines and a frequency of 12.5 frames per second [25]. Initially, sound transmission was not provided. At first, with the help of the system, experimental film transmissions and event broadcasts were conducted, and from November 15, 1934, regular broadcasting began for 1 hour 12 times a month[26]. Among radio amateurs, the construction of self-made mechanical televisions became widespread, since the radio bands used then made it possible to receive television broadcasts over long distances [10] [18]. In 1937, the brochure "Homemade TV" was published in Leningrad[

11/04/2022

Mechanical television systems based on the Nipkow disk were practically implemented only in 1925 by John Baird in Great Britain, Charles Jenkins in the USA, Hovhannes Adamyan and independently Lev Theremin in the USSR[* 1]. The world's first transmission of a moving image was carried out in 1923 by the American Charles Jenkins, using mechanical scanning for transmission, but the transmitted image was a silhouette, that is, it did not contain halftones. The first mechanical system suitable for the transmission of moving halftone images was created on January 26, 1926 by the Scottish inventor John Baird, who founded the Baird Television Development Company in 1928[10][11].
There were other mechanical television systems: the “traveling beam” invented by Manfred von Ardenne in 1931 and the English mechanical television system Scophony, which made it possible to create images on a screen of almost 3 by 4 meters with a resolution of 405 lines [12]. However, none of the mechanical systems could compete with cheaper and more reliable electronic television systems.
On October 10, 1906, the inventors Max Dieckmann, a student of Karl Ferdinand Braun, and G. Glage registered a patent for the use of the Brown tube for image transmission

11/04/2022

The invention of full-fledged television was preceded by the development of a technology for transmitting still images over a distance, which began in the middle of the 19th century. The first of these is Alexander Bain's facsimile machine, patented in 1843[6]. Most of these devices in the 19th century were based on photomechanical processes to convert an image into a combination of conductive and insulated areas suitable for conversion into an electrical signal. Television was made possible by Willoughby Smith's discovery of the photoconductivity of selenium in 1873, and the extrinsic photoelectric effect by Heinrich Hertz in 1887[7]. An additional impetus to development was given by the invention of the scanning disk by Paul Nipkow in 1884, which became the main element of mechanical television until the outbreak of World War II

11/04/2022

A possible prototype of television could be a device, the project of which was developed back in 1726 in Holland. It consisted of a receiver and transmitter connected by a strong silk cord placed in a tube. On the transmitter, a person, using special brushes, drew an image on a special surface, the movements of the brushes turned into a special mathematical code like Morse code, information was transmitted by frequent intermittent tensions on the rope, these movements were received by the receiver, deciphered and set in motion brushes that displayed the image on the receiver. It took about 20 minutes to transfer one drawing over a distance. Nobody saw the documented operation of the device, although its drawings have survived to this day.

11/04/2022

The word Télévision is a compound of the Greek. τῆλε "far" and lat. vīsio "vision". The term was first used in French in 1900 by the Russian scientist Konstantin Persky during the VI International Electrotechnical Congress, held as part of the World Exhibition in Paris[2][3]. In English, the word first appeared in 1907 in the description of "a hypothetical system for the transmission of moving images over telegraph or telephone wires" [4]. In Russia, for the first time, image transmission at a distance took place with the participation of Professor B.L. Rosing, who in July 1907, together with 4 professors of the St. Petersburg Technical Institute, and in 1912 began receiving radio signals from the Eiffel Tower. Receivers and detectors were installed. This was the first work experience of the future 18-year-old founder of television, a student of the same technical institute - V.K. Zvorykin (1889 - 1982). The word "television" was not used then, but appeared only in the USSR, replacing by the mid-1930s such terms as "electrovision", "long-range vision", "radio telescoping"[3], "electrical telescope", "television", or " film radio”, “radio cinema” (when films are transmitted via television)

11/04/2022

Television (from ancient Greek τῆλε "far away" + Latin visio "see" Go to the section " ") is an telecommunication technology designed to transmit a moving image over a distance. In most cases, audio is transmitted along with the image. In everyday life, the term is also used for a generalized designation of organizations involved in the production and distribution of television programs. Since the second half of the 20th century, television has become the most influential medium for entertainment, education, news and advertising.
Transferred television storage technologies, such as VCR and optical video discs, have increased the availability of cinema products, making it possible to watch films not only in theaters, but also on home televisions. By 2013, 79% of households worldwide had at least one television set[1]. Since the 1950s, television has played a key role in shaping public opinion, only beginning to yield this niche to the Internet in the mid-2010s. The role of technology in business and politics is enormous, which is emphasized by the UN, which established a memorial day - World Television Day, which is celebrated annually on November 21.

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