those who knew koptitsa personally say, after. piston expander for obtaining liquid gel.sical problems was evacuated there, and a turbo-oxygen installation was made. all work was classified. the installation was called object number one. it produced up to 200 kg of liquid oxygen per hour, and the front really needed it for explosives, for high-strength tank steel, and for medicine. object number two was already producing liquid oxygen . times more, he became the most powerful installation of this kind in the world, and koptitsa was awarded the stalin prize, but then thunder struck, the scientist was not afraid of open clashes with lavrentiy beria, as they would now say, the country's chief manager. beria entrusted the management of the atomic project to kurchatova kopitsa, but soon removed kopitsa. then the academician and the order bearer were removed from the post of director of the heads of oxygen, and then the institute of physical problems. others would have been trampled by this disgrace, but... it doesn’t accumulate, he is actually locked in his dacha, but continue

those who knew koptitsa personally say that after the loss of his first family, he was no longer afraid to build this institute, he built it. here he sees that the leading theorists whom he invited to his institute, namely landau, fok, they were simply imprisoned, he wrote a letter personally to stalin with a personal guarantee that he vouches for these scientists, that they are not foreign there there agents or someone that they are, so to speak, soviet scientists who... will behave properly, in fact, he saved landao, when in the spring of 1939 the lion landao was released from prison, kopitsa offered him work on theoretical justification for superfluidity. landao was a theoretical physicist, kopitsa, physicists and practitioners and theorists, this is rarely found. while still in cambridge, kopitsa invented the first piston expander to produce a liquid gel. in 1942, in kazan, the institute of physics was evacuated there. it produced up to 200 kg of liquid oxygen per hour, and the front really needed it for explosives, for high-strength tank steel, and for medicine, object number two p