Technikatörténeti szemle 12. (1980-81)

CONTENTS STUDIES K. DÖKA E. HARRACH P. VAJDA Zs. KAROLYI L. BARTHA jr. I. PÉNZES M. N. IPOLY L. FILEP I. GAZDA jr. L. TÍMÁR E. LÁZÁR Z. TERPLÁN B. BUGYI F. S. WAGNER G. PALLÖ T. VASS Gy. BATÁRI E. KIRÁLYFÖLDI Contribution to the history of powersupply. The problem of water-power in 1919 11 Traffic and industry of the District „Víziváros" according to plans in the Municipal Archives of Budapest 23 Hungarian pioneers of phototechnics, photooptics and photochemistry 45 Between the two extreems of drought and flood ... 79 On the history of the oldest Hungarian basic meridians 91 Wheat washing in Hungary 109 Industrial and economic source values of maps ... 137 Birth and development of mathematical programming 155 The development of writing history of physics in Hungary 161 Villard de Honnecourt and Hungary 167 A Hungarian pioneer of film production Georges Demény 183 The modell-T Ford and Joseph Galamb 189 A project of G. W. Leibniz for presentation of the results of scientific research in public expositions 195 The Correspondence of Károly Nagy in the library of the American Philosophical Society 201 József Diener-Dénes and the Lenin definition of scientific revolution 211 The seals of the predecessors of the Metallurgical works in Ózd 215 A Hungarian industrial periodical in the 1840s ... 231 The Urania Hungarian Scientific Association and its magazine Urania (1900—1925) 237