Pressure units converter, calculator

There is no doubt that pressing is used in very many situations. We are not going to speak about psychological pressure but physical one. Each object pressures another one, if it is put on each other. Mostly people do not understand that it is something in common in pressure. Very often it is so actual in technologies.  In science there are a lot of experiments made with pressure. For example pressure is almost impossible in space. Therefore in space stations that sould be made artificially. Fro this reason air is carried from the Earth or air can be produces from water. In such a way not only artificial atmosphere but also pressure is created. In stars there is such a huge process, that we might be pressed immediately. But it is so far from our everyday life, that it is not actual for us. In most travelers are effected by this phenomenon.

For example divers, alpinists and pilots should always follow the factor. Otherwise a number of various problems can occur. Even there is a threat for human life. But this is also the case which happens not so often in daily life. Climate and air pressure are related to every day activities. According to this factor fisherman predicts about catching fish. As we all know, the weather is changeable, and for reason pressure changes as well. Health depends on the weather change.  Air pressure is measured using special units named millimeters of mercury.  In ordinary life it is important to measure the pressure of tires. It it easier to measure bicycle tires it with hand, without using any instruments. But for car tires more exact measurements of pressure are needed.  Thus, manometer is used for such situations. There are plenty o situations which we can experience in our life. If we want to press some kind of food  in order to get a better taste, we use simple things such as stone or pile of books or just a piece of metal.

 

A person walking on solid earth can't leave any footprints behind. But the tracks will be noticeable if he walks on wet ground or sand. The man will sink in loose snow, but having put on skis, he will roll on the snow cover. On skis or without them, a person acts on a snow cover with the same force. The distribution of this force is different because it is attached to a different area. The area of ​​the skis usually exceeds the area of feet many times. The result of force action depends not only on its magnitude but also on the surface area over which it is distributed. The validity of this conclusion can be verified by experience. First, we put a board with hammered nails on the sand, turning the nail caps down. Having loaded the board, we make sure that the depth of nails in the sand is small. Turn the board upside down with the pointed nails. Now, under the same load, the depth of the nail has increased significantly.

 

Pressure is a physical quantity equal to the ratio of the force acting on a perpendicular surface to the area of ​​that surface. The unit of pressure is Pascal. The unit of measurement is named according to the French scientist Blaise Pascal. To increase the pressure, it is necessary to decrease the area or increase the force. To reduce the pressure, it is necessary to increase the area or reduce the force.