Anonymous
Anonymous asked in Science & MathematicsPhysics · 2 months ago

Why does Earth have air pressure?

What is this "pressure"? I don't feel the weight of the air- therefore, it may actually not have any air pressure.

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  • 2 months ago

    As to "why" - there is a bunch of layers of air above you, each of which has weight.  "Pressure" is just the name for the force exerted on you by the weight of the air.

    As to feeling it, you should either ride on an airplane or take a sight-seeing tour of Pike's Peak.  You would feel the difference in air pressure there.

    You don't feel any pressure now because you were BORN into a world of normal air pressure and grew up with it.

  • 2 months ago

    yes. it gives me a headache

  • 2 months ago

    The atmospheric pressure is due to the weight of the air layer caused by gravity which holds it bound to earth. Other Planets have an atmosphere made up of other gasses.

  • 2 months ago

    It is the same as not feeling the speed when in a plane.  You feel changes.  If the pressure suddenly rises or falls you feel that. The reason is that every part of your body is also at the same pressure.  So there are no net forces.  But if the pressure suddenly rises by 10% you are completely crushed.  ie a bomb.

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  • 2 months ago

    Air pressure is caused by weight of column of air above us.

    We don't usually feel it because pressure from outside is balanced by equal pressure in our lungs and blood vessels.

    Sometimes we feel a difference for example when driving in a car up the mountain and our ears pops. That's because outside pressure suddenly dropped while pressure on our ears from the inside is still that of lower altitude where we came from.

  • Anonymous
    2 months ago

    idiots like you should be placed in a vacuum chamber so they can experience lack of air pressure.

  • Anonymous
    2 months ago

    Because we "float" in a huge column of air pressing us allover (this is the reason why we hardly "feel" it).

    Such value was first measured by an Italian physicist named E. Torricelli 5 centuries ago an found equal to 760 mm column of lead (corresponding to 10.3 m column of fresh water or 10.0 m column of sea water).

  • 2 months ago

    You do feel it. You've just felt it every second of your life and don't notice it. There is air pressure because there is an atmosphere. If you've seen vacuum sealed foods, they are tight, because of air pressure. Watch how a chamber vacuum sealer works for a visual reference.

  • Anonymous
    2 months ago

    It is the weight of all of the atmosphere above you pressing against you as it is held to Earth by gravity. You would feel atmospheric pressure, or "air pressure," if it were added back after being taken away. But you have felt it at other times, like when you've been in a car going down a large hill and felt increasing pressure on your ear drums until your ears pop and the air pressure inside your eustachian tubes that lead to your inner ear drums equalizes with the air pressure outside, usually because you've swallowed and so let the higher-pressure air into your eustachian tubes. Anyway, until then, that pressure you feel against your ear drums is caused by more and more air weight pressing against them.

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