antik.it/Antique-barometers/8252-Small-Barometer/
Code 8252
EUR 150.00
In stock
1759934845Code 8252 Small BarometerSmall wooden and brass aneroid wall barometer in the shape of a six-pin rudder. Signed SB Smiths British Made Instrument from the 1950s. This instrument has a pressure-sensing metal box called a barometric capsule.
Good condition, some marks on the glass.
Dimensions: 18 x 3.5 cm – 7.1 x 1.4 inches.
This is an ancient measuring instrument whose pressure-sensing organ is a metal box called a barometric capsule. The capsule contracts or expands as a result of changes in pressure, and its movements are transmitted to an indicator hand via a mechanical system. The development of this type of barometer is due to Bourdon, a French inventor and industrialist (Paris 1808-1884). He founded a factory in Paris in 1835 for the construction of steam engines; in 1849 he invented the metal manometer, to which he attached his name, and in 1853 a type of aneroid barometer.
Since ancient times, humans, as farmers and navigators, have observed and attempted to predict climate change. The scientific study of atmospheric changes began in the mid-17th century, in connection with experiments aimed at demonstrating the existence of a vacuum, which ancient philosophers denied because "nature abhors a vacuum!" Evangelista Torricelli (1608-1647), a mathematician and physicist and disciple of Galileo, was the first, in 1643, to build an instrument capable of detecting changes in air pressure, which he understood to be linked to changes in the weather.
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Of course! The legislative decree n. 42/2004 stipulates that who sells works of art or historical and archaeological items has the obligation to deliver to the purchaser the documents attesting to the authenticity of the object, or at least to submit the documents relating to the probable attribution and origin. Antik Arte & Scienza provides an expertise (as warranty) that contains a description, period and assignment or the author, if known, of the item.
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Antique barometers
Code 8252 Small Barometer
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