1. Isotopes in metallurgy (use of devices equipped with atomic sensors at a metallurgical plant, production of cast iron). 2. Hydraulic arms (using an automatic electric car when replacing the tires of the airplane chassis). 3. Defenders of the forest (forest ants, resettlement of anthills to combat the invasion of caterpillars). 4. From foreign equipment: "Motor - universal" (an exhibition of Finnish agricultural machines and appliances in Moscow).