The film tells about the physicist, professor of Kharkov University YE Geguzin. The film uses materials from the book by Ya.E. Geguzin about the drop. 1st and 2nd parts. Frames of an amateur film: Ya.E. Geguzin giving a lecture in the auditorium of Kharkov University; students in the laboratory, in the classroom during lectures and in the corridor of the university; Ya.E. Geguzin on the deck of the ship and with colleagues at the festive table; monument to Ya.E. Geguzin at the cemetery. The projectionist is loading the film into a movie projector. Rain. Wet grass. Raindrops fall into a puddle. The jets of the fountain. Newsreels: astronauts pouring champagne in zero gravity; Christmas tree in a spaceship.