In the 18-19 centuries lived the famous English chemist and physicist John Dalton.Lack of formal education did not prevent him from becoming quite well-known scholar and make a considerable contribution to the development of science.Before all, he came alone, only with the help of self-education and his inquisitive mind.When Dalton turned 21, he began his scientific work.He was very interested in the air.And 57 years of his life spent in scientific observations of the atmosphere of our planet.He was a meteorological diary in which he recorded more than two hundred thousand cases.
Trudy Dalton were not in vain, and resulted in several gas laws.And one of them is the law of partial pressures.Scientists seek to understand why the various gases in the atmosphere is a mixture, not arranged in layers one above the other, respectively, the density of each.He conducted various studies and found that, no matter how much gas was mixed in any vessel, each of them will take up the entire volume.
take even our atmosphere.She, too, is a big vessel in which, however, no walls.But the various gases are kept at the ground due to its gravity.And all of them are filled with all the surrounding space.But if the gas in the vessel, it is thus exerting pressure on its walls.And the more gas present in the vessel, the pressure is greater.And the air in this case, pressure on the Earth's surface.And this pressure is equal to the weight of the air column, which begins at the planet's surface and ends in the upper atmosphere.And each gas, which is a part of the air, making its part in this process.A partial pressure is this same percentage of each gas in the total pressure.
According to the laws of physics the partial pressure of gas is directly proportional to their share in each of the gas mixture.As part of our atmosphere is oxygen, which all living organisms use to breathe.Its share of the total volume of air is 21%.And if you take the air density is high in the mountains and above sea level, it is everywhere, it would be different.After all, the greater the height, the smaller the Earth's gravity.And this air at high altitudes becomes more sparse.Also, air pressure and changes in the weather.In areas where there is a cyclonic activity is lower than normal, and in areas with higher pressure anticyclone standard 760 millimeter mercury column.If increases or decreases the air pressure, the partial pressure of oxygen also changes accordingly.
This factor has a great influence on the human body.The more the partial pressure of the gas, the better they are equipped with all the tissues of our body.If you take the residents of mountainous areas, they have genetically adapted to lack of oxygen.And for those who live on the plains, you need some time to get used to it.Children are also more sensitive to these differences.After all, they have the oxidative metabolism is much more intense than in adults.And if a storm is approaching, the little children begin to act up.After a storm front is a zone of low pressure and partial pressure of oxygen in it accordingly too low.
This physical law is taken into account, and those who are going to go on vacation in the mountainous areas and take their children with them.Such travel will, of course, for the benefit of the children, if they comply with certain rules.It is less stressful, less bustle and strict adherence.And young children with lowland areas at altitudes above 2,000 meters on vacation is better not to carry.You have to wait until they get stronger.
