Why do we not feel the enormous weight of the atmosphere
above our heads ?
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Answer / hanish
Because the pressure applied on us by air is balanced by
the blood pressure.But under water pressure increases with
depth so it couldnot be balanced by our blood pressureand
we get squeezed.
| Is This Answer Correct ? | 27 Yes | 6 No |
Answer / umang
Coz Blood pressure in veins just balance the pressure
outside.
Under water the pressure outsite is higher (Atm + Hydrostat)
then the normal blood pressure so we feel the increase in
pressure there
| Is This Answer Correct ? | 16 Yes | 4 No |
Answer / nupur
Due 2 atmospheric pressure of100000 pa,every 1 m sq of the
surface of any object experiences a force of100000n or
10000kgf which is roughly =10tonnes of force....
asuming the surface area of an adult is 2 m sq the force
experienced is 200000n or20 tonnes.....it iz becoz our
blood contains dissolved O2,which is at a pressure of more
than 200000pa. this pressure in the blood is commonly
called blood pressure which counterbalancrs the atmospheric
pressure..................
| Is This Answer Correct ? | 13 Yes | 4 No |
Answer / sanju
We do not feel the enormous weight of the atmosphere above
our heads, because the pressure is same on all the sides.
| Is This Answer Correct ? | 30 Yes | 30 No |
Answer / thegenius
gosh you are all wrong!!
it's because your body is pushing back on the atmospheric
pressure on you. What's pushing back you ask? it's blood!!
the fluid of blood, as it circulates is pushing back on the
pressure exerted from outside of the body
| Is This Answer Correct ? | 8 Yes | 8 No |
Answer / ac12
why then isnt the body crushed when bood is drained if
blood pressure is the only thing pushing back. pressure of
everything in your body is balanced or close to it with the
air pressure. then you have your skin releasing oils and
water vapors constantly pushing back on air molecules :D
| Is This Answer Correct ? | 5 Yes | 5 No |
Answer / kanishka verma
because our body experiences the atmospheric pressure since
we born, so we never feel pressure on our head. also air
pressure is same from every point on our body,so we not feel
the enormous weight of the atmosphere
above our heads.
Example: a astronaut feel so heavy and pressure on his body
after returning from space, so that he is unable to walk
easly for few hour.(reference from discovery documentary)
| Is This Answer Correct ? | 2 Yes | 3 No |
Answer / john rhoades
The atmosphere has mass, and thus weight. There are thousands of pounds of atmosphere above you at all time. However, first imagine this weight being on you in a vacuum. As a fluid, it would more easily flow past and around you instead of just settling on you. However, eventually it would accumulate around you and fill up the space you're in, leaving you with still more atmosphere weighing on you. BUT, that atmosphere is being supported by the atmosphere all around you.
As a fluid, the transfer of normal force (the mechanical force that holds objects up against gravity when they're resting on something) is transferred into gaseous pressure instead of downwards force. So lower in the atmosphere, the air is denser to "hold up" more air above it.
That constant pressure is all around us, but it's also inside us, so it has no real net effect. It keeps gases dissolved in our blood, makes it possible to breathe in and out easily, and has other useful metabolic effects.
| Is This Answer Correct ? | 2 Yes | 4 No |
Answer / someguy
Nah its not same pressure on both sides of your body its
same pressure all around and in your body.
The reason we get jelly at 30,000 feet under water is
because the air that is in our bodies is not the same as
water outside our bodies.
If you were to take all the air out of your body and
replace it with water at 30,000 feet then you would not get
Squishy down there, You would just drown. :D
| Is This Answer Correct ? | 9 Yes | 14 No |
Answer / joe
as a fetus in our mothers body we are used to the pressure
on all sides of our body. When we go however in to the
ocean for example the pressure at about 33 feet down
doubles and we feel the presure. Because the presure has
doubled on all parts of our body.
| Is This Answer Correct ? | 2 Yes | 9 No |
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