A barometer is a scientific instrument used to measure atmospheric pressure. It is an important tool in meteorology for forecasting weather patterns.
There are two main types of barometers:
Atmospheric pressure is the force exerted by the weight of the air above us. When the pressure is high, it usually indicates fair weather, while low pressure often indicates the possibility of storms or precipitation.
Barometric pressure is typically measured in units of either inches of mercury (inHg) or millibars (mb). Standard atmospheric pressure at sea level is about 29.92 inHg or 1013.25 mb.
Here are some key points to remember about barometers:
Understanding how barometers work and how to interpret their readings is important for predicting weather patterns and understanding changes in the atmosphere.
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