Calling Young Technicians - Advanced; One hundred and twenty VOLT - a story by A. Kozhevnikov; Conveyor - M. Efetov; Dynamomachina - S. Postnikov; Excursion to the plant - N. B.; Correspondence electric courses - P. Albychev; Po - above water - L. Kassil; How the cathode lamp works (continued) - B. Malinovsky; Our proposals; Double-acting steam spool machine - S. Postnikov; Boat - Yu. Scheglov; Science Calendar; On steel tracks (review) - I. Zhelobovsky; My work on technology is A. Alexandrov; Technical advice responds; Readers write; Test your knowledge - tech quiz; About everything a little...