Why do I need a barometer? Why is it important to know how to change air pressure? Try to understand Barometer (from the Greek. , weight", Greek. , measure") – a device for measuring atmospheric pressure. Barometers are liquid, mercury or mechanical (aneroid). Expa may find it difficult to be quoted properly. In liquid barometers pressure measured height of liquid column (mercury) in a sealed tube top, and bottom end lowered into a vessel with a liquid (atmospheric pressure balanced by the weight of the water column). Mercury barometers – the most accurate, are used at meteorological stations. In life generally used mechanical barometers (aneroid). In no aneroid liquid (Greek "aneroid" – "dry").
He shows the atmospheric pressure acting on the thin-walled corrugated metal box in which a vacuum. By lowering the air pressure box slightly expands and with increasing – and shrinks impact on secured to the spring that turns the arrow that moves on a circular scale, scaled by a mercury barometer. The phenomenon of sensitivity to the weather man studied for a long time. Observations showed that in our country are dependent on the weather around 35% of the adult population. Symptoms of dependence – of migraine and other headaches. During a sharp increase or decrease in atmospheric pressure, often attacks occur in those who suffer from lung diseases, kidney People with high or low blood pressure, as well as suffering from angina or had a heart attack trouble delivering low atmospheric pressure and drizzling rain.
Always feel the weather change rheumatism. Specialists suggest that unique antenna, catching the weather changes are on the walls of the carotid artery. If the pressure in the vessels suddenly drops, it is called a reflex, slowing blood flow. It affects our health. For the manufacture of shells barometers selected fine woods – oak, walnut, cherry, beech, mahogany. Each A customer may be offered a suitable, interesting version of it. Thanks to the original design, even the outward simplicity of barometers of plastic and metal (as compared with the luxury of wood and stone) is relative, and their attractive price makes buying a barometer not only desirable, but real. As a gift of such an instrument is very original and totally accessible. This also contributes to and a wide selection of barometers. Therefore, barometer is a device that will not be superfluous in every home!