BAROMETER [Demonstration]: Aneroid

BAROMETER [Demonstration]: Aneroid

•  Comprises a Ø 120mm Aneroid Barometer with movement encased in a transparent acrylic case.
•  All parts of are visible.
•  Rubber bellow supplied which is used to vary pressure for demonstrating principle of operation.
•  Without the bellow it functions as a normal Barometer.

(Wikipedia excerpt: .."...A barometer [B] is a scientific instrument that is used to measure air pressure in a certain environment. Pressure tendency can forecast short term changes in the weather. Many measurements of air pressure are used within surface weather analysis to help find surface troughs, pressure systems and frontal boundaries.

[B] and pressure altimeters (the most basic and common type of altimeter) are essentially the same instrument, but used for different purposes. An altimeter is intended to be used at different levels matching the corresponding atmospheric pressure to the altitude, while a [B] is kept at the same level and measures subtle pressure changes caused by weather and elements of weather. The average atmospheric pressure on the Earth's surface varies between 940 and 1040 hPa (mbar). The average atmospheric pressure at sea level is 1013 hPa (mbar)...")

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