Aneroid
malleable can be hammered into thin sheets
Thin metal foil
The barometer was rising so we thought it would be a good day for a picnic
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.
Is platinum a base metal or an alloy? What are its uses besides in jewlery? Where is it found generally and geographically? Why is it so dear?
This device is called a barometer. It typically uses a dial or digital face to measure the air pressure by utilizing thin metal cells containing pockets of air.
Well, an aneroid barometer, is called an aneroid barometer- but, a barometer measures air pressure, and an aneroid barometer is a barometer that contains no liquid.
aneroid barometer
aneroid barometer
aneroid barometer
Lucien Vidie, French scientist, invented the aneroid barometer in 1843.
The kind of barometer you are referring to is a aneroid barometer. It uses a metal chamber (an aneroid cell) which expands or contracts with changes in air pressure. This movement is then converted into a reading of air pressure on a dial.
aneroid barometer
aneroid barometer
aneroid barometer
aneroid barometer
One statement to accurately describe a difference between a mercury barometer and an aneroid barometer is that a mercury barometer is a closed tube containing mercury. An aneroid barometer is a closed, flexible container of gas.