Atmospheric Pressure: Why Don't We Feel It?

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SUMMARY

The discussion centers on why humans do not perceive atmospheric pressure despite its significant magnitude. It is established that the human body exerts an equal pressure in all directions, resulting in a net force of zero. Additionally, the presence of air in the lungs and the incompressibility of water in the body prevent collapse under atmospheric pressure. Examples, such as the pressure differential experienced in front of a moving train, illustrate the effects of varying pressure conditions.

PREREQUISITES
  • Understanding of basic physics concepts, particularly pressure and force.
  • Knowledge of human anatomy, specifically the role of air in the lungs.
  • Familiarity with fluid dynamics, especially the properties of incompressible fluids.
  • Basic principles of atmospheric science and pressure differentials.
NEXT STEPS
  • Research the principles of hydrostatics and how incompressible fluids behave under pressure.
  • Study the mechanics of pressure differentials in fluid dynamics.
  • Explore the physiological effects of atmospheric pressure on the human body.
  • Investigate the impact of atmospheric pressure changes in various environments, such as high altitudes.
USEFUL FOR

This discussion is beneficial for physics students, educators, medical professionals, and anyone interested in understanding the effects of atmospheric pressure on the human body and the principles of fluid dynamics.

Super.man
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why don't we feel the atmospheric pressure although it is large ??
 
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We don't feel it because our bodies are pressing back with the same pressure
 
we feel the atmospheric pressure in all directions and the net resultant force will be zero
EXAMPLE :if we are in the normal position we feel the pressure in all directions and the net is zero
if we are infront of the moving train outer atmospheric pressure is more than the pressure between train and us
 
These are not quite right. There are two reasons/cases: first, your chest doesn't collapse because it is filled with atmospheric pressure air. Other parts don't collapse because water is largely incompressible.
 

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