Science and Technology № 5

1syuzh. - The inventor of the ball train I. Yarmalchuk conducts high-speed tests on an experimental ball carriage. 2syuzh. - The operation of the machine for packing makhorka, designed at the plant. Engels (Leningrad). 3syuzh. - Arrangement and operation of a cascade furnace using defective fuel (coal waste, shale, etc.). 4syuzh. - Tankers produced at the Promet plant are passing along the streets of Leningrad. 5syuzh. - The Macon airship flies in the air over the city. The interior of the airship (USA).

B&W

1

1934