Air is made up of a number of molecules that combine in space, such as oxygen, carbon dioxide and nitrogen. Unknown to many people, air has mass and is subject to the laws of gravity. When the space that is between air molecules is removed, a vacuum-like state occurs. When this vacuum state occurs, air is considered to be in its most powerful state.
The amount of power that air will employ is directly proportional to the amount of space left in between the particles. Air that is extremely pressurized can posses enough power to move inanimate objects that weigh a great deal. Air power is used in a variety of ways, such as providing a clean, renewable energy source for power needs, and for replacing electricity and mechanized energy methods.
It is important to understand the role that air pressure plays in the atmosphere and as a power generator. The study of pressure levels in the air (or atmosphere) can help to predict storms and other significant weather patterns and ensure the accuracy of meeting air power-related needs.
The way in which air pressure is measured involves thinking about the amount of power that is needed to manipulate an object. This pressure needs to be is proportional to the constant presence of the air pressure at sea level, which is 14.7 lbs. per square inch.
Types of Air Pressure
A pressure gauge, such as one that is used to put air into a set of car tires, is not measured by how much actual air pressure is actually put into the tires, but rather, it is measured according to how much air pressure is put into the tires when the air pressure is at a standard sea-level rate.
A barometer is an instrument that measures how much air pressure is present in any given location. Based on these readings, there can be predictions made as to what kind of weather-related events one can expect. Depending on the barometric measurement, the air pressure can effect locations that are very far apart along a certain path, such as up and down the east coast.
An air gun fires objects such as a bullet, or even a potato (such as in a spud gun) based on the amount of pressure in the gun chamber. High-powered air rifles are often used by hunters and military personnel, although most that are used for recreational use are typically low powered for legal reasons as well as to help maintain general safety. One of the biggest benefits when using an air powered gun is that they are known for their high accuracy for hitting a target. Air guns are frequently used by sharp shooters in world-wide competitions such as the Olympic Games.
Depending on the caliber of pressure the air in the gun chamber is under, a bullet or other object can be shot as fast as the speed of sound. This phenomenon is most commonly seen in an air gun that has a spring piston. The air in a spring piston gun is placed under extreme pressure when the chamber is cocked. An inside spring is compressed by the piston and air behind the bullet is compressed. This process forces the bullet out of the gun at high speeds. The fastest a bullet can be shot from an air gun is directly proportional to the difficulty of cocking it.