what is the instrument for measuring barometric pressure called ?

Answer 1

barometer

Answer 2

Barometric rigidity is the rigidity of the air on earth's floor. A barometer itself is a tube full of a few liquid that is sealed on the bottom. the point of liquid contained in the tube adjustments because the atmospheric rigidity adjustments. If the rigidity drops, this creates a vacuum and this attracts liquid better contained in the tube. the alternative occurs even as the rigidity rises, forcing liquid decrease contained in the tube. there are a range of diverse scales to degree rigidity. elementary rigidity at sea factor is about 14 pounds in step with sq. inch. that is called a million environment or 760 mm of Hg. Hg is Mercury, that is used in lots of barometers. A mm is a millimeter. that's a metric unit of length. There are about 25 mm in an inch, so (30.ninety 4 in)*(25 mm/inch) = 773.5 mm Hg = a million.02 atm. Atmospheric rigidity is led to through what are accepted as low rigidity and severe rigidity cells. those are vast multiple air that is turning out to be in a low rigidity cellular and fall in a severe rigidity cellular. The sunlight causes air to upward thrust even as it heats the floor. because the air rises, it cools down and condenses, causing rain or snow to fall. that is the reason low rigidity cells oftentimes are an illustration there'll be some variety of precipitation. severe rigidity cells are linked with cloudless, sunny skies. even as a low rigidity cellular collides with a severe rigidity cellular, the element of contact is called a the front. that is mostly the position storms and blizzards form. as the front passes, the barometric rigidity can replace very straight away. This speedy replace in rigidity can effect the body. really oftentimes it can reason migrane issues and sinus soreness.

Answer 3

Barometer.

Answer 4

A barometer. see wikipedia link.

Answer 5

a barometer

Answer 6

it is called a barometer

Answer 7

barometer