Barometers are devices that measure atmospheric pressure (also known as “air pressure” or “barometric pressure”). You can use these readings to predict the weather. For instance, high pressure ...
Admiral FitzRoy (patent) storm barometer, by Negretti & Zambra, London, England, 1876-1884. Fitted with dry and wet mercury thermometers and ordinary mercury thermometer, serial no. 1265. Admiral ...
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