Aerostatics is the study of gases that are not in motion. The corresponding study of gases in motion is called aerodynamics. It is a subfield of fluid statics.

Aerostatics studies density allocation, especially in air. One of the applications of this is the barometric formula.

An aerostat is a lighter than air craft, such as an airship or balloon, which uses the principles of aerostatics to float.

Fields of study

• Atmospheric pressure fluctuation
• Composition of mountain air
• Cross-section of the atmosphere
• Gas density
• Gas diffusion in soil
• Gas pressure
• Kinetic theory of gases
• Partial pressures in gas mixtures
• Pressure measurement

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