1syuzh. - Launch of a balloon balloon by the Institute of Experimental Meteorology. 2syuzh. - Construction and testing of a new type of sled designed for timber removal, designed by engineer Ginzburg. 3syuzh. - Experimental aerial communication line with a moving projectile, designed by the inventor Chistyakov and built by the People's Commissariat for Communications. 4syuzh. - USSR champion in cycling Kozlov rides a bicycle adapted for riding on ice.