What dces a barometer do?

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Where can I find a barometer?

What dces a barometer do?

Just about everyone has heard the nightly weather report include the forecaster stating “the barometer is falling” but just what does that really mean?
A barometer measures rising and falling air pressure – a falling barometer means a decrease in air pressure while a rising barometer indicates increasing air pressure.
Air pressure has a very pronounced effect on the weather and, by knowing about barometric pressure, you are able to make certain predictions about the weather.

   

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