Why Fortin barometer gives more accurate reading
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The main advantages of Fortin's barometer are : It is portable. It allows the mercury level in the cistern to be set to zero. This makes the reading more accurate.
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1
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The main advantages of Fortin's barometer are : It is portable. It allows the mercury level in the cistern to be set to zero. This makes the reading more accurate.
The Fortin Barometer was commonly used at meteorological stations to measure atmospheric pressure. The advantages of this type of barometer are its portability (inverted), and that it permits the inspection of both free surfaces of mercury whose difference in level have to be measured.
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