The barometer measures and tracks these changes in the Earth’s atmosphere, therefore helping meteorologists forecast weather conditions in the short-term. The first mercury barometer was created ...

Toriccelli also went on to develop the mercury barometer, an instrument used to measure atmospheric pressure. A barometer also monitors variations in atmospheric pressure. As air becomes thinner ...

Suppose the mercury bowl of a barometer to be placed on a table and the glass tube so arranged as to admit of its being lifted by hand, the force that will be required to lift the tube will be ...