The final book about the life and work in Kyiv of the box Jew Oleg Rogozovsky. Successful defense of the dissertation was not enough for the Higher Attestation Commission to approve the awarded degree of Ph.D. As with entering college and applying for a job, my middle name, Abramovich, got in the way. I had to go through the purgatory of the Higher Attestation Commission - a black opponent and the Expert Council. Even before approval, he led the research and participated in the R&D of the box. After the unexpected death of the 38-year-old beloved head of the laboratory, it was not possible to find mutual understanding with his superiors. However, the results of his research on signal processing were embodied in the digital equipment of new hydroacoustic stations. I managed to deliver and teach the first course in the Union on digital processing of hydroacoustic signals at the Institute for Advanced Studies of the Ministry of Ship Industry. Business trips gave me the opportunity to visit the Barents Sea, the Pacific Ocean, Kamchatka, including the Valley of Geysers with its caretaker Nikolayenko and see his friends - bears. In addition to work there was football with Dynamo, skiing, holidays in the mountains and at sea. Sons grew up, friends matured, parents left. The book also talks about them. The latest development - a torpedo detection station for a nuclear aircraft carrier - remained unfinished. First they cut the Soyuz into pieces, then the aircraft carrier.