"Barometer, an instrument for measuring the pressure of the atmosphere, based on an experiment performed in 1643 by Torricelli, a pupil of Galileo." -Foster, 1921

Barometer

"Barometer, an instrument for measuring the pressure of the atmosphere, based on an experiment performed…

The aneroid barometer measures atmospheric pressure on a dial.

Aneroid Barometer

The aneroid barometer measures atmospheric pressure on a dial.