Mercury in the tube adjusts until the weight of the mercury column balances the atmospheric force exerted on the reservoir. High atmospheric pressure places more force on the reservoir, forcing mercury higher in the column.
The barometer expands when air pressure decreases.
-by Camille Riestenberg
High pressure (usually) indicates good weather.
It means that the pressure is increasing. High pressure usually brings stable, fine weather.
Clear weather. A falling barometer indicates a storm is coming.
clear skies
increasing
The barometer was rising so we thought it would be a good day for a picnic
Homework? I think you can figure out how to write a sentance. I'll tell you that the definition of barometer is any instrument that measures atmospheric pressure though.
A barometer using water,would need to be 13.6 times taller than a mercury barometer to obtain the same pressure difference. This is because mercury is 13.6 times more dense than water.
barometer is used to measuring atmospheric pressure. manometer is used to measuring the pressure of gases.
Aneroid
The air pressure is rising.
The weather is improving and less likely to produce storms.
The barometer was rising so we thought it would be a good day for a picnic
A barometer is an instrument used to measure atmospheric pressure.
The barometer measures atmospheric pressure.
It means that the pressure is increasing. High pressure usually brings stable, fine weather.
A barometer measures air-pressure (baro-meter) so a rising reading means the local air pressure is increasing. If we assume that your local gravity is constant (it usually is) then the increasing air pressure is caused by the air getting denser; more kilograms per cubic metre or pounds per pint. That could be because the air is getting colder, or because it has less water content, since making air colder makes it denser, and dry air is denser than wet air. So, a rising barometer suggests a spell of cool dry weather.A rising barometer indicates that the air pressure is rising and this is associated with clear skies with few cloud formations. Generally this will mean it is hotter than average in summer, but colder than average in winter.A rising barometer means higher pressure which means less clouds and fairer weather.
a tool is a barometer
No a barometer does a thermometer measures temperature
As air becomes cooler, it becomes more dense. As the air become more dense (heavy), it causes the barometer to rise.
How can I tell if flour is self-rising or all purpose? How can I tell if flour is self-rising or all purpose?
It means higher atmospheric pressure, which is generally caused by cool air.