scholarly journals František Nušl, Vice-President of the IAU 1928–1935, and inventor of the circumzenithal telescope

2018 ◽  
Vol 13 (S349) ◽  
pp. 197-202
Author(s):  
Petra Hyklová ◽  
Martin Šolc

AbstractThe Czech astronomer František Nušl (1867–1951) was professor of mathematics, practical astronomy and geometrical optics at Prague Charles University. His scientific contribution to astronomy consisted mainly of inventing and constructing of new astronomical and geodetical instruments. Together with his friend Josef Jan Frič, founder of the Ondřejov Observatory, he developed and improved the circumzenithal telescope (1899–1903–1906–1922–1932), a portable instrument with a mercury horizon for determining the geodetic position using the Gauss method of equal altitudes. This instrument won the gold medal at the Exposition Internationale des Arts et Techniques dans la Vie Moderne in Paris in 1937. Nušl, independently of Ernst Öpik, invented the wobbling mirror for determining the velocity of meteors by visual observation, and constructed an unique guiding system for the Ondrejov astrograph etc. The organizational activities of Frantisek Nušl were considerably rich, too: He was one of the founders of the Czech Astronomical Society in 1917, in the years 1922–1948 he served as its president. From 1918 until his retirement in 1937 he was the director of the Ondrejov Observatory, 40 km south of capital city of Prague, lectured astronomy at the Prague university and held many popular lectures including regular courses in radio broadcasting. František Nušl was member of several commisions of international scientific unions; he organized the 3rd General Assembly of IUGG (International Union of Geodesy and Geophysics) in Prague 1927, and in IAU (International Astronomical Union) he was elected as Vice-President in the years 1928–1935. One can conclude that he was the main person who formed the Czech astronomy in the interwar period.

2011 ◽  
Vol 22 (2) ◽  
pp. 215 ◽  
Author(s):  
R. H. Frater ◽  
W. M. Goss

W. N. (?Chris') Christiansen was an innovative and influential radio astronomy pioneer. The hallmarks of his long and distinguished career in science and engineering, spanning almost five decades, were his inventiveness and his commitment to, and success with, large-scale projects. These projects were the outcome of his innovative skill as physicist and engineer. Paralleling this was his equal commitment to forging strong international links and friendships, leading to his election as Vice-President of the International Astronomical Union for the years 1964 to 1970, as President of the International Union of Radio Science, URSI, from 1978 to 1981, and subsequently as Honorary Life President in 1984, and as Foreign Secretary of the Australian Academy of Science from 1981 to 1985. Major subsequent developments in radio astronomy and wireless communications on the global scene stand as a legacy to Chris's approach to his work and to the development of those who worked with him.


1979 ◽  
Vol 6 (1) ◽  
pp. 29-37 ◽  
Author(s):  
John L. Carey

The recollections of John L. Carey about the policies and politics in professional circles during the very important period when the Securities Exchange Commission first came into being. Mr. Carey served the American Institute of Certified Public Accountants in various capacities from 1925 to 1969, including editor of The Journal of Accountancy and Administrative Vice-president, and received the Institute's gold medal for distinguished service to the profession.


1939 ◽  
Vol 6 ◽  
pp. 79-102
Author(s):  
M. W. F. Meggers ◽  
MM. Babcock ◽  
Buisson ◽  
Burns ◽  
Ch. Fabry ◽  
...  

The red radiation, 6438.4696 A., emitted by a cadmium lamp of Michelson type was first chosen in 1907 by the International Union for Co-operation in Solar Research (Trans. I.U.S.R. 2, 109, 1907) as a definition of the unit of wave-length. This primary standard was subsequently adopted by the International Astronomical Union (Trans. I.A.U. 1, 35, 1922) and by the International Committee on Weights and Measures (Procès-Verbaux Comité Int. Poids et Mesures (2), 12,67,1927). Specifications for the production of this primary standard were adopted provisionally by the I.A.U. in 1925 (Trans. I.A.U. 2, 47, 232, 1925), and by the I.C.W.M. in 1927 (Procès-Verbaux Comité Int. Poids et Mesures (2), 12, 67, 1927). Three reports of this Commission (Trans. I.A.U. 3, 77, 236, 1928; ibid. 4, 58, 233,1932; ibid. 5, 81, 299, 1935) have discussed the divergences in these specifications and pointed out the unsatisfactory features of each. This discussion culminated in a revised specification (Trans. I.A.U. 5, 303, 1935) which was adopted unanimously by the I.C.W.M. in 1935 (Procès-Verbaux Comité Int. (2), 17, 91,1935).


1963 ◽  
Vol 3 (26) ◽  
pp. 227-233
Author(s):  
Andrée Morier

At the time when the Centenary of the Red Cross is about to be celebrated, it would be fitting to remember the rôle so many members and officers of the International Committee of the Red Cross have played in the drafting and the proclamation of the Rights of the Child. This declaration called the Declaration of Geneva was proclaimed forty years ago by the Council of the “Save the Children International Union” (SCIU). It was on May 17, 1923, that the final draft in five brief clauses was adopted. It is to be recalled that at that time the ICRC and the SCIU worked in close co-operation. Indeed, it was Dr. Frédéric Ferrière's report (then Vice-President of the ICRC) on the disastrous situation in which children lived in Vienna which incited Eglantyne Jebb to come to Geneva for the first time.


1968 ◽  
Vol 1 ◽  
pp. 279-285
Author(s):  
Francis P. Scott

This report consists of a brief summary of the status of a number of programs of an international nature which are now in progress at various observatories of the world. These programs have received strong endorsements from Commission 8 of this Union, as well as from a number of international organizations interested in accurate positions and motions of the stars to the 9th magnitude of brightness. Among the organizations and conferences which have explicitly endorsed the programs are:(1) The Symposium on Coordination of Galactic Research, Groningen, 1953.(2) Conference on the Problems of Astrometry, Evanston, 1953.(3) Astrometric Conference, Pulkovo, 1954.(4) Conference on Astrometry, Brussels, 1955.(5) International Union of Geodesy and Geophysics, 1954 and 1963.(6) International Astronomical Union, 1955.(7) Second Astrometric Conference, Cincinnati, 1959.(8) First Inter-American Conference on Astronomy, La Plata and Cordoba, 1959.(9) Meeting on Problems of Astrometry and Celestial Mechanics, La Plata, 1960.(10) Committee on Space Research, COSPAR, 1966.


Author(s):  
Christopher Snowden ◽  
Yang Hao

Peter Clarricoats made fundamental contributions as a microwave engineer in the fields of applied electromagnetics for microwave and optical waveguides, and microwave antenna feeds. Peter was also a pioneer of optical fibres, and established the theory of electromagnetic propagation on dielectric and ferrite structures. In the course of this, he discovered that such structures can, under some conditions, support ‘backward waves’ and that guides can propagate complex modes. Over 40 years of his academic career, Peter Clarricoats had numerous notable achievements, including pioneering designs for shaped reflectors, reconfigurable reflectors and especially corrugated horns for microwave antennas. The latter are now universally used in satellite ground stations and in spacecraft. He published what became standard reference texts on corrugated horns for microwave antennas, microwave horns and feeds. He served as vice-president of both the Institution of Engineering and Technology and the International Union of Radio Science, and from 1998 to 2000 was chairman of the Defence Scientific Advisory Council. He was appointed a CBE in 1996. He is the recipient of the 2001 Distinguished Achievement Award of the Institute of Electrical and Electronics Engineers Antennas and Propagation Society, and in 2015 he received the Sir Frank Whittle Gold Medal from the Royal Academy of Engineering.


2018 ◽  
Vol 13 (S349) ◽  
pp. 214-221
Author(s):  
D. C. V. Mallik

AbstractIndia was still a British colony when the International Astronomical Union was born in 1919. India did not have a national science academy nor a national research council at the time. The Royal Society, London, which was the adhering body of Great Britain to IAU, handled matters of the colony too. India formally joined the IAU in 1948 as an independent nation through an initiative taken by the Government of India. In 1968, the National Institute of Sciences of India (NISI) became the adhering organisation to the IAU, as did the other affiliate Unions of ICSU. Soon after, its name was changed to Indian National Science Academy (INSA).Till the nineteen-sixties, individual Indian membership in the IAU grew rather tardily but the situation changed with the rapid growth of astronomical activities in the country. In 1967, M.K. Vainu Bappu, the then Director of the Kodaikanal Observatory, was elected a Vice-President of the Union. In 1979, he was elected the President of IAU for the triennium 1979–1982, and during the same period, V. Radhakrishnan and Govind Swarup were elected Presidents respectively of the Commisions 34 and 40. In 1985, the General Assembly of the Union was held in New Delhi. It was dedicated to the memory of Vainu Bappu who had initiated the process of inviting the Union to hold its GA in India. A few years later the Sixth Asian-Pacific Regional IAU Meeting was held in Pune. A number of IAU symposia and colloquia have also been held in the country. During the last three decades, the engagement of the Indian astronomers with IAU has increased a great deal with a large number of them taking on important official roles in the IAU. Currently, India has close to 300 individual members.


Sign in / Sign up

Export Citation Format

Share Document