Science and technology 1969 № 24
Availability of videosources
Needs clarification of possibility of digitizing.
Annotation1. In the Lviv Polytechnic (the development of a new type of conveyor belt, working on the electromagnetic force). 2. Chemical metronomes (Institute of Biophysics, USSR Academy of Sciences). 3. Variations on the theme "Rococo" (study of the work of the composer Pyotr Tchaikovsky).