Barometers

Barometers are used to measure atmospheric pressure and thus help predict the weather meteorologom. Atmospheric pressure varies with altitude, so the pressure measuring device can also be used to determine the amount. Air has mass and is therefore attracted to the Earth's forces grawitacyjnymi The next layer of the atmosphere pushing on those lying below, and all the stresses exerted on the surface of our planet. The pressure exerted by air on any item is referred to as the atmospheric pressure. Its value varies depending on size and weather conditions. The higher, the air less, and thus less pressure. For the first time, research on atmospheric pressure moved Galileusz.