Barometer

A mercury barometer

A barometer is an instrument used to measure air pressure. The barometer measures air pressure in various kinds of units including hectopascals (hPa).

An aneroid barometer

There are various types of barometers such as the water barometer, aneroid barometer, and the mercury barometer. The mercury barometer, the earliest barometer, was created by an Italian mathematician named Evangelista Torricelli in 1643.

They are used for measuring altitude, or height above the ground, such as the height of a mountain, and they were often used to measure altitude aboard a hot air balloon. Barometers are also used in modern aviation. Miners sometimes use them to determine the depth of a mine. The most used purpose of the barometer was measuring air pressure. This helps meteorologists in predicting weather.

Other Languages
Afrikaans: Barometer
العربية: مقياس ضغط جوي
asturianu: Barómetru
azərbaycanca: Barometr
беларуская: Барометр
беларуская (тарашкевіца)‎: Баромэтар
български: Барометър
bosanski: Barometar
català: Baròmetre
čeština: Barometr
dansk: Barometer
Deutsch: Barometer
eesti: Baromeeter
Ελληνικά: Βαρόμετρο
English: Barometer
español: Barómetro
Esperanto: Barometro
euskara: Barometro
فارسی: فشارسنج
français: Baromètre
Gaeilge: Baraiméadar
galego: Barómetro
ગુજરાતી: બેરોમીટર
한국어: 기압계
հայերեն: Բարոմետր
हिन्दी: बैरोमीटर
hrvatski: Barometar
Bahasa Indonesia: Barometer
íslenska: Loftvog
italiano: Barometro
עברית: ברומטר
ქართული: ბარომეტრი
kaszëbsczi: Barométer
қазақша: Барометр
kurdî: Barometro
Кыргызча: Барометр
Latina: Barometrum
latviešu: Barometrs
lietuvių: Barometras
magyar: Barométer
македонски: Барометар
მარგალური: ბარომეტრი
Bahasa Melayu: Barometer
Nederlands: Barometer
日本語: 気圧計
norsk: Barometer
norsk nynorsk: Barometer
oʻzbekcha/ўзбекча: Barometr
ਪੰਜਾਬੀ: ਬੈਰੋਮੀਟਰ
پنجابی: بیرومیٹر
Piemontèis: Barògraf
polski: Barometr
português: Barómetro
română: Barometru
русский: Барометр
Scots: Barometer
shqip: Barometri
slovenčina: Barometer (fyzika)
slovenščina: Barometer
کوردی: بارۆمەتر
српски / srpski: Барометар
srpskohrvatski / српскохрватски: Barometar
Basa Sunda: Barométer
svenska: Barometer
Tagalog: Barometro
తెలుగు: భారమితి
тоҷикӣ: Барометр
Türkçe: Barometre
українська: Барометр
اردو: بار پیما
Tiếng Việt: Áp kế
Winaray: Barometro
粵語: 氣壓計
中文: 气压表