Fortin type barometer

Made by Newman & Son in London, England, 1855-1900.

This barometer was used at Sydney Observatory in the late 1800s. The observatory used barometers at its Sydney location and at weather stations throughout country New South Wales to measure atmospheric pressure and, hence, track storm systems . Data from the barometer measurements were collated and analysed by the observatory’s astronomers. These observations allowed the astronomers to predict storm systems and movement in Sydney and to the west of the Blue Mountains.

Australia’s weather was a...

Summary

H9908
Barometer, fortin-type barometer, mercury / wood / metal / glass, made by Newman and Sons, London, England, [1833-1855], used at Sydney Observatory, Sydney, New South Wales, Australia, 1858-1900

A fortin-type barometer which has a central glass channel, ending in a cylindrical solid base with glass windows. The barometer has a graduated scale at upper right from '27' to '31' and a mercury thermometer inset at the lower left, above the base cylinder with scaling in degrees Celsius. The barometer is mounted on a polished timber base with a rounded top. The mount is wall-mountable, with metal fittings to support barometer.

Dimensions

1310 mm
200 mm
130 mm

Production

Made by Newman & Son, 122 Regent St, London, England between 1855 and 1900.

In 1816, John Newman opened his business at 7-8 Lisle St, Leicester Square, London, England, later relocating to 122 Regent St, London, in 1827.

Newman was one of the England's leading 19th century barometer makers. He made the Royal Society's standard barometer in 1822 and in 1833, he devised a portable iron cistern to help make mercury barometers more hardy and secure when being transported and used in rough conditions. Newman also made the standard and portable barometers for the Ross Antarctic expedition in 1839. His meteorological barometers were installed, and used, throughout the British Empire in the 1800s.

References:
John Newman, 'On a new method of constructing a portable barometer', Report of the 3rd meeting of the British Association for the Advancement of Science, London, 1834, pp 417-418.
N. Goodison, English Barometers 1680-1860, A history of domestic barometers and their makers, Cassell Ltd, London, 1969. p. 313
Newman & Son 1855-1900

History

The barometer was used at Sydney Observatory, Watson Road, Observatory Hill, Sydney, New South Wales, Australia between 1858 and 1900.

Humans have always relied on predicting the weather for comfort, food, and general well-being. As human intelligence evolved, more sophisticated means were used to forecast weather patterns. Instrumental meteorological observations began in the early 17th century with the invention of the thermometer by Galileo Galilei, shortly after 1600.

The invention of the barometer is credited to Evangelista Torricelli, in 1643 . He experimented with mercury in a vacuum, which allowed him to measure atmospheric pressure. The changes in atmospheric pressure were indicative of future changes in the weather, thus the barometer became an invaluable tool in weather forecasting.

This barometer was used to record meteorological observations at Sydney Observatory for a period in the late 1800s.

References:
N. Goodison, English Barometers 1680-1860-A history of domestic barometers and their makers, Cassell Ltd, London, 1969.
Sydney Observatory 1858-1900

Source

Ex Sydney Observatory stock, 1983
29 June, 1983

Cite this Object

Fortin type barometer 2014, Museum of Applied Arts & Sciences, accessed 17 October 2017, <https://ma.as/258880>
{{cite web |url=https://ma.as/258880 |title=Fortin type barometer |author=Museum of Applied Arts & Sciences |access-date=17 October 2017 |publisher=Museum of Applied Arts & Sciences, Australia}}
This object is currently on display at the Sydney Observatory.
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