Manufacturing of silent bakelite gears and etrol car steering wheels (steering wheels) at a pilot plastics plant. The plant's products from carbolite are a storage tank and electrical insulators. TsAGI windmill and wind power plant in the field. Electric welding works when assembling a petrol tanker - an entirely electric welding barge. Testing the barge with water in bulk (Factory "Red Don"). A man conducts experiments with X-rays in the laboratory (foreign chronicle).