Knowing the air pressure is really important in forecasting as it can indicate short term changes in the weather. The instruments that measure air pressure are called 'barometers'. They work by ...
A PORTABLE barometer made by the well-known clockmaker Daniel Quare (1649-1724) has been lent by Mr. K. Meyrick, of Corbridge-on-Tyne, to the Science Museum, South Kensington. The barometer is an ...
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