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What measures a barometer with Mercury?

A barometer that uses mercury measures air pressure by monitoring the height of the mercury column in a tube. As air pressure changes, the mercury level rises or lowers in response. This instrument is called a mercury barometer.


A decrease in the height of a column in a mercury barometer means that .'s surface?

When air pressure increases, the mercury in a barometer rises.


What is the reading on a barometer rises when the air pressure what?

The reading on a barometer rises when the air pressure increases. This typically occurs when a high-pressure weather system moves into an area, leading to clearer skies and more stable weather conditions. Conversely, a falling barometer reading indicates decreasing air pressure, often associated with stormy or unsettled weather.


What a barometer with Mercury?

barometers with mercury measure air pressure. when the air pressure is high the mercury rises


When air pressure decreases the mercury in a barometer?

The mercury rises. The lower atmospheric pressure allows the mercury to drop in level.


What is the diaprahm and belows instrument?

Do you mean the old barometer?


Mercury barometer means you will have what kind of day?

A mercury barometer is an instrument which can be used to forecast the weather. The fact that there is a barometer does not affect the weather. You need to see what the barometer shows and interpret it.


What does nocking an arrow mean?

That is how you attach an arrow to the bow.


When air pressure goes up the liquid in a mercury barometer goes?

When air pressure goes up, the liquid in a mercury barometer goes down. This is because as air pressure increases, it pushes the mercury in the tube to rise, indicating higher pressure.


How do you set a Lufft antique barometer?

In case of an aneroid barometer with a spiral, there is an adjusting screw on the back. This screw can loosen or increase tension of the spiral.First you need to know the atmospheric pressure in your area, which can be found on meteorological sites. For example: 1005 mbar(hPa):change. This equals a rating of 753.8mm. There is an easy conversion method between the two, hPa/1.333= mm AND mm *1.333= hPa.(simplified but still very accurate)Thenjust adjust the screw to the right atmospheric pressure on the scale of the barometer, the arrow will be calibrated. (in fact you set the pressure of the vacuum inside the barometer.)Now every change in pressure will be pointed out by the arrow correctly.


What does barometer anemometer thermometer hygometer weather van mean?

What does thermometer ab baromean mean.


Air pressure is typically measured with a?

Air pressure is measured with a barometer.