I. Pozsgai: Superconductive X-ray detectors A. Aszódi: Two decades since Chernobyl T. Bujtás, Á. Nényei: Radiation protection aspects of the repair work at Paks Nuclear Power Plant N. Éber: LCD screens for our century's TV sets L. Füstöss: Academician Pál Gombás - an eminent scientist's portrait L. Detre, astronomer. Centenary (L. Szabados ) Béla Ribár, 1930-2006 (D. Berényi ) TEACHING PHYSICS M. Kiss: Build your own sundial! Committees' observations concerning the recently revised physics examination procedures at secondary schools PROBLEMS TENDERS DOCUMENTS EVENTS BOOKS SCIENCE IN BITS FOR THE SCHOOL Solar energy (Á. Horváth )