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A hemispherical-cup anemometer of the type invented in 1846 by John Thomas Romney Robinson. In meteorology, an anemometer (from Ancient Greek άνεμος (ánemos) 'wind' and μέτρον (métron) 'measure') is a device that measures wind speed and direction. It is a common instrument used in weather stations.
A hemispherical cup anemometer of the type invented in 1846 by John Thomas Romney Robinson. John Thomas Romney Robinson (23 April 1792 – 28 February 1882), usually referred to as Thomas Romney Robinson, was an Irish astronomer. He was the longtime director of the Armagh Observatory, one of the chief astronomical observatories in the UK of its ...
Following the war, he was involved in designing a new barometer and was responsible for developing the 3-cup anemometer now in widespread use. [4] [9] In 1925 he became assistant director of the Meteorological service, then in 1929 he was named director (controller), succeeding the retiring Sir Frederic Stupart.
1846 – Cup anemometer invented by Dr. John Thomas Romney Robinson. 1847 – Francis Ronalds and William Radcliffe Birt described a stable kite to make observations at altitude using self-recording instruments; 1847 – Hermann von Helmholtz publishes a definitive statement of the conservation of energy, the first law of thermodynamics.
Cup-type anemometer on a remote meteorological station An occluded mesocyclone tornado (Oklahoma, May 1999) Wind direction is usually expressed in terms of the direction from which it originates. For example, a northerly wind blows from the north to the south. [8] Weather vanes pivot to indicate the direction of the wind. [9]
One of the observatory's directors, Thomas Romney Robinson invented the cup anemometer, a device for measuring wind speed. [3] A plan was announced in 1949 to establish an Armagh Planetarium. [4] After many years work the Planetarium opened in 1968, its first director was Patrick Moore. It celebrated its 50th anniversary in 2018. [5]