# Boris Grabovsky

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{{Short description|Soviet scientist}}
'''Boris Pavlovich Grabovsky''' ({{langx|ru|Бори́с Па́влович Грабо́вский}}, {{langx|uk|Бори́с Па́влович Грабо́вський}}, 26 May 1901 – 13 January 1966) was a [Soviet](/source/Soviet_Union) [engineer](/source/engineer) of [Ukrainian](/source/Ukraine) descent who invented a first fully [electronic TV set](/source/Television_set) (video transmitting tube and video receiver) that was demonstrated in 1928.<ref>[http://earlytelevision.org/uzbekistan.html Early Television Foundation]</ref><ref name=":0" /><ref>{{Cite web|title=Grabovsky - inventor|url=http://www.tvmuseum.ru/catalog.asp?ob_no=4622|url-status=usurped|archive-url=https://web.archive.org/web/20041109003329/http://www.tvmuseum.ru:80/catalog.asp?ob_no=4622 |archive-date=2004-11-09 }}</ref> In 1925, one of the pioneers of television [Boris Rosing](/source/Boris_Rosing) advised and helped him apply for a [patent](/source/patent) (''issued under No 5592'') of a fully electronic TV set called '''Telefot'''.<ref>{{Cite web |url=http://ukraine-in.ua/en/science/bgrabovskiy-izobretatel-etv |title=Boris Grabowski - the inventor of electronic television |access-date=2017-02-24 |archive-url=https://web.archive.org/web/20161019144631/http://ukraine-in.ua/en/science/bgrabovskiy-izobretatel-etv |archive-date=2016-10-19 |url-status=dead }}</ref><ref>{{Cite web|title=Грабовский Борис Павлович и его "Телефот". Мифы и реальность|url=http://uk8aie.pr.uz/index.files/grab_telefot1.htm|url-status=live|language=Russian|archive-url=https://web.archive.org/web/20080514164002/http://www.uk8aie.pr.uz:80/index.files/grab_telefot1.htm |archive-date=2008-05-14 }}</ref> Boris is the son of the [Ukrainian](/source/Ukrainians) poet [Pavlo Hrabovsky](/source/Pavlo_Hrabovsky).

== Invention ==
In his method patented in 1925, Grabovsky proposed a new principle of the [TV](/source/Television) imaging based on the vertical and horizontal [electron beam](/source/Cathode_ray) sweeping under high [voltage](/source/voltage) that is widely used in the modern cathode-ray tubes. [Historian](/source/Historian) and [ethnographer](/source/Ethnography) Boris Golender (Ukrainian: ''Борис Голендер'') in his video lecture described in details where and how the [inventor](/source/Invention) Boris Grabovsky demonstrated a first fully electronic TV set to committee and public in summer 1928.<ref name=":0">[http://www.fergananews.com/articles/8089 Invention of television and Boris Grabovsky]</ref> Although this date of demonstration of the fully electronic TV set is the earliest known so far, most of the modern historians claim that either [Vladimir Zworykin](/source/Vladimir_Zworykin)<ref>[http://www.historyofinformation.com/expanded.php?id=694 Invention of the iconoscope, the first electronic television camera]</ref> or [Philo Farnsworth](/source/Philo_Farnsworth)<ref>K. Krull, The boy who invented TV: The story of Philo Farnsworth, 2014</ref> were supposedly first. Contribution made by Boris Grabovsky to the development of early television was acknowledged by the Government of the [USSR](/source/USSR).

== Biography ==
Boris Grabovsky was born in 1901 in [Tobolsk](/source/Tobolsk), [Siberia](/source/Siberia), where his father, a prominent Ukrainian poet [Pavlo Hrabovsky](/source/Pavlo_Hrabovsky) was living in exile as a member of the Russian revolutionary movement [Narodnaya Volya](/source/Narodnaya_Volya). After the death of his father the next year, the family moved to [Odessa](/source/Odessa) then to [Kharkov](/source/Kharkov). In 1917, they had to move to Central Asia, to [Kyrgyz](/source/Kyrgyz_people) village [Tokmok](/source/Tokmok). He died in January 1966 in [Frunze](/source/Bishkek), the capital of the [Kirgiz Soviet Socialist Republic](/source/Kirghiz_Soviet_Socialist_Republic).

=== Education ===
Boris Grabovsky started his education in [Tashkent](/source/Tashkent) special school. Then he entered preparational faculty of Central Asian University in Tashkent where he worked with Prof. G. Popov. In the university he read articles by [Boris Rosing](/source/Boris_Rosing) in the field of electronic [telescopy](/source/Telescope). Being excited by the idea of the transmission of images over a distance, he invented the [cathode](/source/cathode) commutator, which was the first prototype of his transmitting tube.

== Honours ==
In 1965, Boris Grabovsky was awarded the title of the Honored Inventor of [Uzbekistan](/source/Uzbekistan).

In 1977, the [museum](/source/museum) of [electronic television](/source/Television) named Boris Grabovsky was founded in Tashkent.

There is a museum named after Boris Grabovsky in the [Tyumen](/source/Tyumen) Industrial Institute.

There is a museum named after Boris Grabovsky in the village of Pushkarne (now Grabovske) in [Sumy region](/source/Sumy_Oblast) .

In the [Vinnytsia](/source/Vinnytsia) National Technical University at the Faculty of Radio Electronics in the early 2000s, a photo gallery of prominent [scientist](/source/scientist)s — radio pioneers with a description of their achievements was created. Ukrainian scientists (with Boris Grabovsky) are presented with [Maxwell](/source/James_Clerk_Maxwell), [Heinrich Hertz](/source/Heinrich_Hertz), [Guglielmo Marconi](/source/Guglielmo_Marconi), [Nikola Tesla](/source/Nikola_Tesla), [Alexander Stepanovich Popov](/source/Alexander_Stepanovich_Popov).

==References==
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{{DEFAULTSORT:Grabovsky, Boris}}
Category:Soviet engineers
Category:Television pioneers
Category:1901 births
Category:1966 deaths
Category:Soviet inventors

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Adapted from the Wikipedia article [Boris Grabovsky](https://en.wikipedia.org/wiki/Boris_Grabovsky) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Boris_Grabovsky?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.
