There are a number of reasons we're not crushed by air pressure.
First, air pressure only begins to "crush" an object when pressure is higher on the outside of the object than on the inside (on the other hand, if air pressure is higher on the inside, you might say the object starts to push out and "explode", like you see with a balloon.) Our bodies maintain a pressure pretty close to that of the air outside.
Second, the amount of crushing force depends on the amount of pressure difference between the outside and inside, which we're built tough enough to handle. We actually breathe by alternating our body's air pressure to be higher and lower than that of the air outside by using our diaphragm, which causes air to rush in or out of our lungs to make up for the difference. If you want to feel how hard that difference actually "crushes" or "explodes" your body, try to breathe deeply while keeping your mouth and nose tightly shut (but don't hurt yourself).
Because our bodies exert counter pressure and prevents it from bursting.
Because the pressure inside your body is the same and cancels it out.
The entire human body, including all the bones, tubes, sacks, and fluids in it,
is constructed to develop an outward pressure that compensates for the
inward atmospheric pressure.
Which is one of the main reasons why you don't want to take off your space suit during
a space walk ... your body could possibly inflate to the point where it would be tough
for your buddies to squeeze you back inside through the port. (In addition to other
space discomforts, of course.)
We are not crushed by the weight of air because our bodies are designed to withstand the atmospheric pressure that surrounds us. Our internal pressure matches the external pressure, preventing us from being crushed. Additionally, the air exerts pressure in all directions, which helps balance out the force.
Air pressure is greatest at ground level because the weight of the air above compresses the air molecules closer together, creating higher pressure. As altitude increases, there is less air above, resulting in lower air pressure.
The pressure drops with altitude. More quickly at first, but more gradually the higher you go. If plotted on a graph, you would get a curve.
When air pressure acts equally on an object from all directions, it results in balanced forces that cancel each other out. This balanced pressure is what allows objects to maintain their shape and not be crushed by the surrounding air pressure.
Atmospheric pressure is the weight of the air above the surface of the earth. As elevation increases, there is less air above the location and the pressure is lower. At sea level the column of air above the area is greater.?æ
We are not crushed by air pressure at sea level because our bodies contain air that balances the external pressure. Our bodies are also designed to withstand this atmospheric pressure, and our organs are protected by bones and other structures. Additionally, our circulatory system helps regulate pressure internally.
We are not crushed by the weight of air because our bodies are designed to withstand the atmospheric pressure that surrounds us. Our internal pressure matches the external pressure, preventing us from being crushed. Additionally, the air exerts pressure in all directions, which helps balance out the force.
wrong
wrong
By internal pressure matching that of the surrounding air.
Because even though it looks empty. There's still air inside, the air inside is of the same pressure as the air outside the container. Now of you were yo actually have the plastic container be actually empty, with nothing not even air. Then yes. It would be crushed. The vacuum formed would pull the walls inwards and the air pressure outside the container would push inwards.
The air pressure at sea level is called atmospheric pressure.
Pressure inside your body balances the air pressure outside your body.
The air pressure is greatest at sea level.
Below sea level atmospheric pressure increases with depth. Air pressure at sea level is about 14.7 psia. Air pressure below sea level would be slightly higher.
Because of the atmosphere. Because it does not allow the air pressure to enter the earth.
no air, high atmospheric pressure, would be crushed