International Union of Radio Science
- International Union of Radio Science
The International Union of Radio Science (in French, l'Union Radio-Scientifique Internationale - URSI) is one of 26 international scientific unions affiliated to the International Council for Science.
The URSI was officially created in 1919, during the Constitutive Assembly of the International Research Council (now ICSU), based on the earlier Commission Internationale de Telegraphie sans Fil (1913-1914) when the only radio communication system was radiotelegraphy. It has held a general assembly every three years from 1922.
The URSI's original objective (to encourage "scientific studies of radiotelegraphy, especially those which require international cooperation") has been broadened to include all radio science, from telecommunications to radio astronomy, acquisition of radar information about distant passive objects, studies of the radiation stimulated or spontaneously emitted by these objects, and active modification of objects by radio waves, within the spectrum from extremely low frequency to the optical domain.
External links and references
* [http://www.ursi.org/ URSI website]
* [http://www.usnc-ursi.org/ United States National Committee of the International Union of Radio Science]
Wikimedia Foundation.
2010.
Look at other dictionaries:
International Union of Radio Science — Die International Union of Radio Science URSI (französisch Union Radio Scientifique Internationale, URSI) ist ein internationaler Wissenschaftlerverband zur Erforschung aller Aspekte der Funktechnik einschließlich deren Anwendungen und der… … Deutsch Wikipedia
International Union of Biochemistry and Molecular Biology — The International Union of Biochemistry and Molecular Biology (IUBMB) is an international non governmental organisation concerned with biochemistry and molecular biology[citation needed]. Formed in 1955 as the International Union of Biochemistry … Wikipedia
Union Radio Scientifique Internationale — L’Union radio scientifique internationale, connue dans toutes les langues sous l’appellation URSI (en anglais: International Union of Radio Science), est l’une des 26 Unions affiliées au Conseil international pour la science. Elle fut créée à… … Wikipédia en Français
International Reference Ionosphere — International Reference Ionosphere, abgekürzt IRI, ist seit 1968/69 ein gemeinsames wissenschaftliches Projekt der International Union of Radio Science (URSI) und des Committee on Space Research (COSPAR). IRI wurde 1999 zum internationalen… … Deutsch Wikipedia
Union radio-scientifique internationale — L’Union radio scientifique internationale, connue dans toutes les langues sous l’appellation URSI (en anglais: International Union of Radio Science), est l’une des 26 Unions affiliées au Conseil international pour la science. Elle fut créée à… … Wikipédia en Français
Union Radio-Scientifique Internationale — Die International Union of Radio Science URSI (französisch Union Radio Scientifique Internationale, URSI) ist ein internationaler wissenschaftler Verband zur Erforschung der Funkausbreitung. Geschichte Die URSI wurde 1919 gegründet, anlässlich… … Deutsch Wikipedia
International Council for Science — The International Council for Science (ICSU), formerly called the International Council of Scientific Unions, was founded in 1931 as an international non governmental organization devoted to international co operation in the advancement of… … Wikipedia
International Council for Science — Conseil international pour la science Logo Le Conseil international pour la science (en anglais International Council for Science ou ICSU. Son ancien nom Conseil international des unions scientifiques n est plus utilisé depuis 1998) a été fondé… … Wikipédia en Français
Amateur radio in India — Infobox amateur radio country country=India caption=Amateur radio operators at a foxhunt in Mumbai licensed=16,000 license year=1913 itu region=3 itu zone1=41 itu zone2=49 cq zone1=22 cq zone2=26 itu rep=WPC iaru rep=ARSI callsign1=VUA to VWZ… … Wikipedia
Norwegian Academy of Science and Letters — The Norwegian Academy of Science and Letters building in Drammensveien The Norwegian Academy of Science and Letters (Norwegian: Det Norske Videnskaps Akademi, DNVA) is a learned society based in Oslo, Norway … Wikipedia
