A Soviet scientist, one of the founders of cosmonautics, he also worked in the design of grain storage facilities, mining equipment, and wind power plants.
Lived: 1897-1942.
He lived and worked under the pseudonym of Alexander Ignatievich Shargei.

From 1927 he lived and worked in Siberia. Here, in 1929, Kondratyuk's famous book "The Conquest of Interplanetary Spaces" was first published.
In 1929-1930, according to the project and under the leadership of Yu.V. Kondratyuk, a grain receiving station was built in the town of Kamen-na-Obi, which included a grain storage facility with a capacity of 13,000 tons, built without a single nail, a shipping gallery and an overpass to the pier on Obi. The granary was 60 m long, 32 m wide, and the height reached a 5-storey building. Because of its shape, the granary was named "Mastodon". In the same period, Yu.V. Kondratyuk repeatedly came to Biysk, where he lectured on the mechanization of grain storage.

On July 30, 1930, Kondratyuk, along with several other employees of Khleboprodukt, was arrested on charges of sabotage. One of the points of accusation was that he built the Mastodon not only without drawings, but also without nails. The local leadership came to the conclusion that the structure would not be able to withstand such an amount of grain and would fall apart, thereby destroying 10 thousand tons of grain from the people. On May 10, 1931, he was sentenced to three years in labor camps. Soon he was assigned to work in the "sharashka" - a specialized design bureau No. 14 in Novosibirsk. The Mastodon stood for over 60 years and burned down in the mid-1990s.

At the beginning of the twentieth century, Yu.V. Kondratyuk calculated the optimal flight path to the moon. These calculations were used by NASA in the Apollo lunar program. The trajectory proposed by him in 1916 was later named the "Kondratyuk track".

There is an urban legend that during a visit to Novosibirsk in 1970, American astronaut Neil Armstrong visited the house where Kondratyuk lived and worked, collected a handful of earth and said: "This land is no less valuable to me than the lunar soil ..." ...
A crater on the far side of the Moon is named after Kondratyuk.

At the house where Yu.V. Kondratyuk, at st. Lenin 80, a memorial plaque was installed. A bust of Kondratyuk Yu.V. is installed on the embankment of the Ob River. along with the busts of V.M. Shukshin and I.A.

Sources: Wikipedia is a free encyclopedia and information provided by the Committee for Culture of the Administration of the Kamensky District.