Technikatörténeti szemle 11. (1979)

TANULMÁNYOK - Vajda Pál: Creative Hungarians in mathematics, astronomy, physics, chemistry, technical sciences and industry. A selected bio-bibliography

ammonia in tartaric acid solution, new foundations for weight analysis, determination of gases, etc. Winkler’s process for iodine and bromine determination is even now widely applied.

Schulek E.\ L. W. Winkler (= Talanta 10/1963. pp. 423—428.)

DSB, WHC, SzA

ZIPERNOWSKY, Károly (1853—1942). Engineer.

Zipernowsky preceded his contemporaries in the production and utilization of alternating current. His most significant invention was jointly produced and credited with Miksa Déri ( -* ) and Otto Titus Bláthy ( — ): the world’s first transformer, thus making possible the conduction and distribution of electric current over long distances.

Forbes G.: The distribution of electricity (— Electrical Review, London 1885. pp. 102—124., 143—146, 168—172), Hospitalier E.: Conditions de fonctionnement des transformateurs Zipernowsky, Déri, Bláthy (= L’Electricien 1886. pp. 129—143.) Vajda P.: Karl Zipernowsky (= Neues aus Ungarn Wien 1953. Nr. 11. p. 9.), Ha- lacy A. A.—Fuchs G. A.: Transformer Invented 75 years ago (= Power Apparatus and Systems 1961. pp. 121, 125—128.)

CH, WHC, VHP, ZAB

TWENTIETH-CENTURY ASBOTH, Oszkár (1891—1960). Mechanical engineer.

Played a prominent role in helicopter research. During World War I. he developed the so-called Asboth-airscrews. Pursuant to his experimentation Asboth himself constructed a helicopter and as early as September 9, 1928, made the first successful helicopter flight witnessed by many foreign experts. Asboth’s successes in helicopter research lent new impetus to relevant research throughout the world.

R. N. Liptrot: Modern developments in the Helicopter (— The Journal of the Royal Aeronautical Society 35/1931 pp. 630—631.), Vajda P.: Oscar von Asboth (— Neues aus Ungarn, Wien 1953. Nr. 12. p. 11.), O. Stewart: Aviation, the creative ideas, London 1966 p. 103.

CH, WHC

ALEXITS, György (1899—1978). Mathematician.

Alexits achieved valuable results in the set theory curve theory and the theory of real functions. From the mid-30’s his interest was directed more and more towards the problems of orthogonal series. He examined the problems of convergence and summability of these series, and carried out original research work in connection with the approximation rate of the summability. His work in this subbject can be regarded as pioneering work on a world scale.

HYFC

BÉKÉSY, György (1899—1972). Physicist (Nobel Prize in Medicine).

(Georg von Békésy)

Békésy’s auditory-physiological research developed a field considered as classic and full explored. Making the best use of modern amplifier engineering he constructed new measuring devices whereby he could measure, express and quantify all the mechanical characteristics of the human organ of hearing.

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