If you regularly listen to the weather forecast, it is likely to have noticed that in the end are always reported data on atmospheric pressure.But have you ever thought what it is all about why and how it is measured?On the atmospheric pressure and its impact on man and will be discussed in this article.For the first time it was able to measure the atmospheric pressure in the distant 1643.For many experiments of the Italian scientist Evangelista Torricelli showed that air has a certain weight, which is immeasurable.As a result of extensive testing great scientist invented the barometer.Now, atmospheric could be measured with the utmost precision.
imagine the action of the atmospheric pressure is not difficult.In fact, it is a force with which to everything that surrounds us, presses the air.Measured by this force in hectopascals (hPa), but it is permissible to use and old pieces: popular mm.Hg.Art.and millibars (mb).Often the question arises: "And what is normal atmospheric pressure?".It is the force with which a column of air presses on the Earth's surface at sea level.For this value take 760 mmHgThe maximum pressure was recorded in 1968 in the northern regions of Siberia and it was equal to 113.35 hPa.During this period, it marked malaise almost all residents, since the maximum atmospheric pressure - an unusual phenomenon of nature, and adaptation is not.
Any deviation from the norm, whether it's high or low atmospheric pressure causes a change in the weather.It is known that the gases have an excellent resource for the compressibility, respectively, denser than the gas, the greater the pressure he is able to produce.Indicators of atmospheric pressure greatly decreases with height.The higher the altitude reading is taken, the less will be indicators.This is due to the fact that the pressure of one layer to another is reduced.For example, at the altitude of 5000 meters of its performance in the two times less than the earth.
night usually observed high atmospheric pressure, and in the afternoon, with the air temperature rises, the pressure decreases.How does the low or high atmospheric pressure on a person?First of all, it depends on the individual and the state of his health.Usually, people with heart disease and blood vessels are more responsive to fluctuations in atmospheric pressure.For them, no matter what the normal atmospheric pressure, the main thing that is characteristic of their village did not allow pressure surges.Such people are usually interested in the forecast for the next few days so that you can take appropriate action and to prevent the exacerbation of their disease.
from observations and research is clear that high blood pressure is not all people causes deterioration of general condition.With strong exceeded standards in individuals breathing becomes deeper, it quickens the pulse, slightly weakens and the rumor becomes quieter voice.The main part of the population, these diseases are carried almost imperceptibly.High atmospheric pressure is increasingly becoming a problem for people suffering from migraine and cardiovascular disease.Of course, this takes into account not only the quantity but also the frequency of the pressure fluctuations.When differences occur smoothly, but the difference is only a few units, they felt much weaker.
Most often we feel malaise it is lowered to atmospheric pressure.Blood pressure is reduced, the overall condition resembles the process of oxygen starvation, dizzy, legs become "cotton", etc.Scientists have conducted a study on the number of traffic accidents and were disappointing result.The number of accidents in the period of low atmospheric pressure is increasing on average by 15-20%.Drivers, be vigilant and careful!
Whether we like it or not, but the weather not only affects our mood, but also on the general physical condition.Feeling that you become "uncomfortable", try not to worry, and if possible to reduce all kinds of serious exercise.In cases where the ailment becomes simply intolerable, of course, is to see a doctor.
