Literally meaning: “ measure of rarity”
Origin: Anc Greek
μανός/manos(=thin, rare, sparce)
In November 0f 1704 the French Mathematician Pierre Varignon (1654-1722), described a new instrument for measuring the air pressure which named “manometer” because it was capable to measure scarcity of a gas: “……et l’appelle manomètre, c’est-à-dire mesure de la raréfaction”. . Later this instrument was used to measure liquids.
A manometer is a device to measure pressure in a fluid or a gas. Kinds of manometers are sphygnomanometer and areaneroid manometer.
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