The lever of mercury falls in a barometer while taking it to a mountain why?
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Modern barometers are completely electronic and show the pressure reading on an LCD display. The two traditional kinds of barometer are called Torricellian and aneroid (dial) barometers—and here's how
One easy way is to measure the air pressure. If it's rising and the pressure is high, chances are it'll be a fine day; if the pressure is falling, it's more likely to be wet, windy, and dull. Instruments that measure air pressure are called barometers and people have been using them for weather forecasting and scientific research for hundreds of years.
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