P. Raics: The Department of Experimental Physics at University of Debrecen: activities in particle physics – part II G. Turchányi: Details of the history of CERN and informatics – part II B. Paripás, B. Palásthy: The coincidence electron spectrometry method of investigating atomic internal orbit processes – part I A. Tél, A. Czmerk, T. Tél: Problems of quantized control – part II P. Hraskó: Where does the axis of the Earth's rotation point to? N. Bokor: Relativistic catching up – part II TEACHING PHYSICS Eötvös Physical Competition problems contributed by F. Károlyházy – part II, Thermodynamics (G. Rad "Fizikashow" – one way of popularizing physics K. Radnóti, M. Farkas-Adorján: The knowledge system needed by teachers of physics – part I K. Härtlein: Physical experiments to be performed at home OPINIONS "The entropy problem" paper and the publication policy of our Journal (J. Kertész) EVENTS