Interview with the director of the Polytechnic Museum G. P. Kozlov (synchronously). Museum halls: introductory hall; model of the first laboratory of Lomonosov, halls of metallurgy, chemistry. Antique telephones, televisions of the thirties, modern radio equipment, a model of the first steam locomotive of the Cherepanovs father and son, a model of a nuclear installation. Visitors in the halls of the museum: listen to the explanations of the guide, observe the work of the existing models, devices.