Yuri Vasilievich Kondratyuk (June 21, 1897 - 1942) was the pseudonym adopted by Oleksandr Gnatovich Shargei, a pioneer of astronautics and spaceflight. He was a theoretician and a visionary who, in the early twentieth century, foresaw ways of reaching the moon. is the 172nd day of the year (173rd in leap years) in the Gregorian calendar. ... 1897 (MDCCCXCVII) was a common year starting on Friday (see link for calendar). ... Year 1942 (MCMXLII) was a common year starting on Thursday (the link will display the full 1942 calendar) of the Gregorian calendar. ... A pseudonym (Greek: , pseudo + -onym: false name) is an artificial, fictitious name, also known as an alias, used by an individual as an alternative to a persons legal name. ... Astronautics is the branch of engineering that deals with machines designed to work outside of Earths atmosphere, whether manned or unmanned. ... ISS in earth orbit. ... This article is about Earths moon. ...

Kondratyuk was born in Poltava, Ukraine (then Russian Empire). His father, Ignatiy Benediktovich Shargei, studied Physics and Mathematics at Kiev University. Kondratyuk's mother, Ludmila Lvovna Schlippenbach taught French at a Kiev high school, and must already have been pregnant when she married in January 1897. Because of her unusual surname, it is often suggested that Ludmila must have been a descendant of Wolmar Anton von Schlippenbach, a general who took part in Charles XII of Sweden's failed invasion of Russia. Ludmila was devoted to social activism and was imprisoned on several occasions for participating in demonstrations. During her last stay in a Kiev prison, shortly before Kondratyuk was born, she was diagnosed as suffering from a psychological disorder. As a result of this, Ignatiy divorced her when Kondratyuk was still very young, and the boy was raised by his paternal grandmother. Location Map of Ukraine with Poltava highlighted. ... The subject of this article was previously also known as Russia. ... For other uses, see Kiev University (disambiguation). ... Wolmar Anton von Schlippenbach (born 1658, died 1739) was Governor General of Swedish Estonia from 1704 to 1706. ... Carl XII, Karl XII or Carolus Rex, (June 17, 1682 – November 30, 1718), the Alexander of the North, nicknamed in Turkish as Demirbaş Şarl (Charles the Habitué), was King of Sweden from 1697 until his death in 1718. ... For other uses, see Demonstration. ...

From an early age, Kondratyuk was fascinated by his father's books on physics and mathematics and demonstrated great abilities in these areas. When he was old enough to attend high school, he was admitted straight into the third form of a prestigious high school, where he graduated with a gold medal for proficiency a few years later.

From there, he enrolled at the Peter the Great Polytechnic in Petrograd to study engineering, but before long was drafted into the army as a junior officer at the outbreak of World War I. During his time of military service, he filled four notebooks with his ideas of interplanetary flight. These included suggesting the use of a modular spacecraft to reach the Moon, leaving the propulsion section of the vehicle in orbit while a smaller lander journeyed to the surface and back (the strategy eventually adopted independently by the engineers of the Apollo program). He included detailed calculations of a trajectory to take a spacecraft from Earth orbit to lunar orbit and back to Earth orbit, a trajectory now known as "Kondratyuk's route" or "Kondratyuk's loop". Saint Petersburg  listen (Russian: Санкт-Петербу́рг, English transliteration: Sankt-Peterburg), colloquially known as Питер (transliterated Piter), formerly known as Leningrad (Ленингра́д, 1924–1991... “The Great War ” redirects here. ... This article is about the series of human spaceflight missions. ...

Kondratyuk left the army following the Russian Revolution and tried to make a life stoking boilers in his native Poltava. During this time of extreme poverty, he finally came into contact with the ideas of like-minded people and in 1924, became a founding member of the Society for Studies of Interplanetary Travel, with Konstantin Tsiolkovsky and Friedrich Zander and was able to begin exchanging ideas. The following year, he made an unsuccessful attempt to escape to Poland but was stopped and turned back by border guards. Ordinarily, he would probably have been shot, but the guards recognised the early symptoms of typhus in him and perhaps decided to spare themselves a bullet. The Russian Revolution of 1917 was a series of political and social upheavals in Russia, involving first the overthrow of the tsarist autocracy, and then the overthrow of the liberal and moderate-socialist Provisional Government, resulting in the establishment of Soviet power under the control of the Bolshevik party. ... For the rap album, see 1924 (album). ... Konstantin Eduardovich Tsiolkovsky Konstantin Eduardovich Tsiolkovsky (Константин Эдуардович Циолковский, Konstanty CioÅ‚kowski) (September 5, 1857 new style – September 19, 1935) was a Russian and Soviet rocket scientist and pioneer of cosmonautics who spent most of his life in a log house on the outskirts of the Russian town of Kaluga. ... Friedrich Zander (August 23, 1887 - March 28, 1933), often referred to as Fridrikh Tsander (transliterated from the Russian version of his name: Фридрих Артурович Цандер) or Fridrihs Canders (the Latvian version... For the unrelated disease caused by Salmonella typhi, see Typhoid fever. ...

He was nursed back to health by a neighbour, and on the advice of friends, realised that it was in his best interests to flee Poltava. As a former officer of the Tsarist army, he was at risk of arrest as an enemy of the people. His friends managed to obtain false identification papers for him, in the name of Yuri Vasilievich Kondratyuk, born in Lutsk in 1900 (who in reality had died of tuberculosis in 1921). With this new identity, he left for Siberia, where he settled in Novosibirsk. Working as a mechanic, he completed the manuscript of a book that he titled "The Conquest of Interplanetary Space", dealing with rocket motion and issues concerning the habitation of space. He also suggested using a gravitational slingshot trajectory to accelerate a spacecraft. While the book was enthusiastically received by fellow enthusiasts in Moscow, no publisher would touch such a fanciful work. Eventually, Kondratyuk paid a Novosibirsk printer to produce 2,000 copies of the 72-page work, and even then had to do much of the typesetting and operating the press himself, both to save costs but also because the equations in the book posed problems for the printer. Lutsk (Ukrainian: Луцьк) is the capital of the Volyn Oblast, Ukraine. ... Äž: For the film, see: 1900 (film). ... Tuberculosis (abbreviated as TB for tubercle bacillus or Tuberculosis) is a common and deadly infectious disease caused by mycobacteria, mainly Mycobacterium tuberculosis. ... Year 1921 (MCMXXI) was a common year starting on Saturday (link will display the full calendar). ... This article is about Siberia as a whole. ... Location of Novosibirsk in Russia and the Oblast Coordinates: Oblast Novosibirsk  - Mayor Vladimir Gorodetskiy Area    - City 447. ... In orbital mechanics and aerospace engineering, a gravitational slingshot or gravity assist is the use of the gravity of a planet or other celestial body to alter the path and speed of a spacecraft. ...

Applying his engineering genius to more local problems, Kondratyuk designed a huge grain elevator (quickly nicknamed "Mastodon") that was built without a single nail since metal was in such short supply in Siberia. Unfortunately, this ingenuity would work against him when in 1930 he was investigated as a saboteur by the NKVD. The lack of nails in the structure was used as evidence that he had planned it to collapse. Convicted of anti-Soviet activity, Kondratyuk was sentenced to three years in a gulag, but because of his evident talents he was sent to a sharashka (research facility prison) rather than a labour camp. There, he was first put to work evaluating foreign coal-mining machinery for the Kusbass region, and quickly impressed the camp supervisor with his ingenuity. At the supervisor's request, in November 1931 a review board changed Kondratyuk's status from "prisoner" to "deported", and sent him to work on Siberian grain projects. This article or section does not adequately cite its references or sources. ... EXAMPLE:Laughbox,Blondie,BamBam,Pinkie,etc. ... This article is about the prehistoric elephant-like animal. ... Year 1930 (MCMXXX) was a common year starting on Wednesday (link will display 1930 calendar) of the Gregorian calendar. ... The NKVD (Narodny Komissariat Vnutrennikh Del  ) (Russian: , ) or Peoples Commissariat for Internal Affairs was the leading secret police organization of the Soviet Union that was responsible for political repressions during Stalinism. ... Gulag ( , Russian: ) was the government body responsible for administering prison camps across the former Soviet Union. ... Sharashka (sometimes Sharaga or Sharazhka, Russian: ) was an informal name for secret research and development laboratories in the Soviet Gulag labor camp system. ... A worker at Kuzbass in 1933. ... Year 1931 (MCMXXXI) was a common year starting on Thursday (link will display full 1931 calendar) of the Gregorian calendar. ...

Kondratyuk learned of a competition to design a large wind power generator for the Crimea, sponsored by Sergo Ordzhonikidze, then People's Commissar for Heavy Industry. With fellow deportee engineers Pyotr Gorchakov and Nikolai Nikitin, Kondratyuk submitted a design for a 165 metre (500 ft) high concrete tower supporting a four-bladed propeller with a span of 80 metres (240 ft) and capable of generating up to 12,000 kW. In November 1932, Ordzhonikidze selected this design as the winner and invited the team to meet with him in Moscow before sending them to Kharkov to finalise the design and have it built. While in Moscow, Kondratyuk had the opportunity to meet Sergei Korolev, then head of the GIRD (rocket research group). Korolev offered Kondratyuk a position on his staff, but Kondratyuk declined, fearing that the scrutiny he would come under from security would reveal his true identity. An example of a wind turbine. ... Motto Процветание в единстве(Russian) Protsvetanie v edinstve(transliteration) Prosperity in unity Anthem Нивы и горы твои волшебны, Родина(Russian) Nivy i gory tvoi volshebny, Rodina(transliteration) Your fields and mounts are wonderful, Motherland Location of Crimea (red) with respect to Ukraine (light blue). ... Grigoriy Konstantinovich Ordzhonikidze (Russian:Григорий Константинович Орджоникидзе), generally known as Sergo Ordzhonikidze (Серго) (October 12, 1886 - February 18, 1937) was a member of the Politburo, and close friend to Stalin. ... It has been suggested that this article or section be merged with: :Sovnarkom. ... Prince Pyotr Dmitrievich Gorchakov (Russian: ) (1790–1868) served under Mikhail Kamensky and Mikhail Kutuzov in the campaign against Turkey, and afterwards against France in 1813–1814. ... The Motherland calls, 1967 Nikolai Vasilyevich Nikitin (Russian: ) (15 December 1907 - 3 March 1973) was a heavily awarded structural designer and construction engineer of the Soviet Union best known for his monumental structures. ... For other uses, see Propeller (disambiguation). ... Year 1932 (MCMXXXII) was a leap year starting on Friday (the link will display full 1932 calendar) of the Gregorian calendar. ... For other uses, see Moscow (disambiguation). ... Kharkov (rus: Ха́рьков) or Kharkiv (ukr: Ха́рків) is the second largest city in Ukraine, a center of Kharkivska oblast. It is situated in the northeast of the country and has a population of two million. ... Sergei Pavlovich Korolev (Серге́й Па́влович Королёв) (December 30, 1906– January 14, 1966) was the head Soviet rocket engineer and designer during the space race, known only as the chief designer during his lifetime. ... Gird is a region of Madhya Pradesh state in central India. ...

Kondratyuk, Gorchakov, and Nikitin worked on the wind power project for the next four years until Ordzhonikidze's "mysterious" death in 1937. Overnight, the project was deemed to be too expensive and dangerous and was shut down, the tower only half-built. Nikitin would later use what he had learned on this project when he designed the Ostankino Tower in the 1960s. Meanwhile, the men went to work on designing smaller wind turbines (in the 150-200 kW range) to power farms. During this time, Kondratyuk learned of the arrest of Korolev on charges of treason for wasting time on designing spacecraft. He immediately decided to divest himself of his own copious notes on the subject. The former neighbour in Novosibirsk who had nursed him back to health after his episode of typhus agreed to take his notebooks and eventually took these to the United States when she escaped there with her daughter following World War II. He also sent a copy of his published work to the Tsiolkovsky museum in Kaluga. Year 1937 (MCMXXXVII) was a common year starting on Friday (link will display the full calendar) of the Gregorian calendar. ... Vertical panorama of Ostankino Television Tower The Ostankino tower seen from the grounds at All-Russia Exhibition Centre. ... Combatants Allied powers: China France Great Britain Soviet Union United States and others Axis powers: Germany Italy Japan and others Commanders Chiang Kai-shek Charles de Gaulle Winston Churchill Joseph Stalin Franklin Roosevelt Adolf Hitler Benito Mussolini Hideki Tōjō Casualties Military dead: 17,000,000 Civilian dead: 33,000... Konstantin Tsiolkovsky State Museum of the History of Cosmonautics in Kaluga, built in 1967 Kaluga (Калу́га in Russian) is a city in central Russia on the Oka River 188 km southwest of Moscow, administrative center of Kaluga Oblast. ...

Kondratyuk joined the Soviet army as a volunteer in June 1941 and died soon afterwards. The exact circumstances of his death are not known. His unit was involved in heavy fighting against the German army in October 1941, and October 3 is sometimes given as the date of his demise. Evidence collected in the 1990s suggests that he disappeared in the January or February of 1942 while repairing a communications cable at night near Zasetski. Because no body was ever recovered, conspiracy theories circulate that he escaped from the Soviet Union and eventually made his way to the United States and worked on the space programme there under yet another identity. There is no evidence to support these claims. For other uses, see 1941 (disambiguation). ... For other uses, see 1941 (disambiguation). ... is the 276th day of the year (277th in leap years) in the Gregorian calendar. ... Year 1942 (MCMXLII) was a common year starting on Thursday (the link will display the full 1942 calendar) of the Gregorian calendar. ... For other uses, see Conspiracy theory (disambiguation). ...

A science centre and college in Novosibirsk are dedicated to him, and Kondratyuk crater on the Moon and an asteroid have been named after him as well. Ukraine has issued postage stamps and coins bearing his image. When Neil Armstrong visited the Soviet Union after his historic flight, he collected a handful of soil from outside Kondratyuk's house in Novosibirsk to acknowledge his contribution to spaceflight. Location of Novosibirsk in Russia and the Oblast Coordinates: Oblast Novosibirsk  - Mayor Vladimir Gorodetskiy Area    - City 447. ... Kondratyuk is a worn lunar crater on the Moons far side. ... This article is about Earths moon. ... For other uses, see Asteroid (disambiguation). ... A selection of Hong Kong postage stamps A postage stamp is evidence of pre-paying a fee for postal services. ... This article is about monetary coins. ... This article is about the former American astronaut. ... Location of Novosibirsk in Russia and the Oblast Coordinates: Oblast Novosibirsk  - Mayor Vladimir Gorodetskiy Area    - City 447. ...