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

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

Fields of study include:

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

A balloon or airship, which uses the principles of aerostatics to float, is known as an aerostat.

Fluid mechanics

Aerostatik | Aerostatiko | Aerostatyka