Aneroid barometer: An instrument that measures air pressure by detecting the movements of a thin, hollow, partially evacuated metal disk that expands and contracts as air pressure changes.

Aneroid: Rather than using liquid, aneroid barometers utilize a flexible metal box known as an aneroid cell. Changes in air pressure cause the cell to slightly expand or contract. With the use of ...

Here's how to make two simple barometers: an aneroid barometer (that uses air) and a water barometer. Have fun! An aneroid barometer Aneroid barometers do not use fluids (such as water or mercury).

It involved making an aneroid barometer with a balloon, pencil and an empty jar. As the season shifted into fall, I obsessed over the pencil's reactions to daily weather patterns and learned ...

M.LÉON TEISSERENC DE BORT has invented an aneroid mirror barometer, which is described in a recent number of La Nature. It is based on a method analogous to that well-known since the researches ...

L.M. A. There are all sorts of barometers. There are instruments that use water, others that use mercury and still others that use an aneroid cell. “Aneroid” is taken from the Greek and means ...

Here's how to make two simple barometers: an aneroid barometer (that uses air) and a water barometer. Have fun! An empty food tin (washed!) - the bigger the better. Make sure that it doesn't have ...