Measuring the wind, Greenwich Observatory, London, 1880.
© Science Museum / Science & Society Picture Library
Plate taken from the 'Illustrated London News'. In the mid-19th century, Admiral Robert Fitzroy (1805-1865) set up the organisation known as the Meteorological Office (Met Office), to warn ships going to sea of the approach of bad weather. The Greenwich Royal Observatory also begun to make meteorological observations: being serviced here are the instruments in the north-west turret. The Osler Anemometer measured wind force by reproduced on a moving strip of paper the weather vane's movements by means of a pencil attached to the stand inside. The circular plate on the vane recorded the wind presure, and the pluviometer charted rainfall.