antik.it/Antique-barometers/7684-Aneroid-Barometer/
Code 7684
EUR 350.00
In stock
1701094936Code 7684 Aneroid BarometerAneroid wall barometer in carved wood, brass and glass, signed Aneroid wall barometer in carved wood, brass and glass, an instrument whose pressure-sensitive organ is a metal box called a barometric capsule. English manufacture from the end of the 19th century. Good condition, working. Diameter 23.3 cm – 9.2 inches, thickness 4.5 cm – 1.7 inches.
It is an ancient measuring instrument whose pressure-sensitive 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 for the construction of steam engines in Paris in 1835; in 1849 he invented the metallic manometer, to which he linked his name, and in 1853 a type of aneroid barometer.
Fin dall’antichità l’uomo, come agricoltore e navigatore, ha osservato e tentato di prevedere l’andamento del clima. Lo studio scientifico dei mutamenti che avvengono nell’atmosfera ebbe inizio alla metà del XVII secolo, in relazione agli esperimenti tendenti a dimostrare l’esistenza del vuoto, che gli antichi filosofi negavano poiché “la natura aborre il vuoto!”.
Evangelista Torricelli (1608-1647), matematico e fisico, discepolo di Galileo, fu il primo, nel 1643 a costruire uno strumento in grado di rilevare i cambiamenti della pressione dell’aria, che egli comprese essere legati ai mutamenti del tempo atmosferico.
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Antique barometers
Code 7684 Aneroid Barometer
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