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www.reference.com/article/history-barometric-pressure-9ee972bebaef2f59

Barometric pressure was discovered in about 1644 when physicist and inventor Evangelista Torricelli invented the first mercury barometer. Torricelli was an assistant to Galileo Galilei who suggested that Torricelli try using mercury in his vacuum experiments. As Torrice...

www.reference.com/article/considered-high-barometric-pressure-69149318f5e6e182

An area is considered to have high barometric pressure when it has greater atmospheric pressure than the surrounding area. Normal barometric pressure is between 980 millibars and 1,050 millibars. High pressure systems are also referred to as anticyclones.

www.reference.com/article/normal-barometric-pressure-f584ab613a620f62

Barometric pressure normally fluctuates. Rises in pressure can be linked to clear weather. Falling pressure can be linked to wet weather or storms. Steady barometric pressure readings indicate that the current conditions will continue. Did you know that air has weight? ...

www.reference.com/article/considered-low-barometric-pressure-751ca413e718d071

Barometric pressure of under 29.50 inches of mercury at sea level is considered low. At sea level, a normal barometer reading is between about 29.70 inches of mercury and 30.20 inches.

www.reference.com/article/barometric-pressure-lowest-972f537d8b0baef

Barometric pressure, or air pressure, is lowest at high altitudes. However, barometric pressure also varies according to the weather. The lowest barometric pressures have been recorded during strong tropical cyclones.

www.reference.com/article/causes-extremely-low-barometric-pressure-4f0ca7cd31a59a08

Low barometric pressure is caused by warm air from the planet's surface rising, decreasing the amount of air pulled downward by Earth's gravity. This rising heat can lead to adverse weather conditions.

www.reference.com/article/purpose-barometric-pressure-sensor-10d3a0b45340b56

A barometric pressure sensor measures pressure differences in the atmosphere. In automotive applications, this reading is used by the powertrain control module to regulate engine timing and fuel trim.