A. Tél, A. Czmerk, T. Tél: Problems of quantized control - part I M. Blahó, Á. Egri, G. Horváth, R. Hegedüs, G. Kriska, J. Jósvai, M. Tóth, K. Kertész, L. P. Biró: No reaction to circularly polarized light by scarabs although expected for these polarizing beatles - part II Z. Kövesi-Domokos: Cosmic radiation at extreme energies - part II N. Bokor: Relativistic catching up - part I Frigyes Károlyházy, 1929-2012 (I. Groma, J. Kürti, L. Gálfi, J. Csákány) A. Frenkel: The Károlyházy model of quantum mechanics TEACHING PHYSICS Eötvös Physical Competition problems contributed by F. Károlyházy - part I, Mechanics (G. Radnai) K. Härtlein: Physical experiments to be performed at home OPINIONS K. Oláh: The entropy problem - part II EVENTS