A. Egri, G. Horváth, Á. Horváth, G. Kriska: Can sunlight focussed by water drops on leaves burn them? - Part I. Á. Dani, E. Tóth, A. Kovács, I. Kovács, K. Berta: The use of data rating in the development of medical instruments K. Martinás, K. Radnóti: Episodes of Madame Curie's life V. Gál: Hungarian physicists at world expositions TEACHING PHYSICS Cs. Sükösd: Report on the XII. Leo Szilárd contest in nuclear physics - Part I. I. Bigus: A contest in quantitative assessing of problemsolutions in physics at Árpád Vezér high school EVENTS