- #1
jaydnul
- 558
- 15
I mean we evolved under miles and miles of atmosphere pushing down on us then we walk inside a building, like 10 ft of air pressure, and we are fine? Wouldnt that big of a pressure difference have an impact on our bodies?
lundyjb said:I mean we evolved under miles and miles of atmosphere pushing down on us then we walk inside a building, like 10 ft of air pressure, and we are fine? Wouldnt that big of a pressure difference have an impact on our bodies?
Chestermiller said:The pressure with which the ceiling is pushing down is not zero. It is the same as the outside pressure that exists 10 feet above the ground.
Chestermiller said:The pressure with which the ceiling is pushing down is not zero. It is the same as the outside pressure that exists 10 feet above the ground.
DrClaude said:Really?
Crazymechanic said:the pressure I believe in the case of the ceiling would be the pressure of air at that height + the gravitational potential from the exact mass of the ceiling structure.
Now that is more than just air outside at the same height.
Just like a cylinder put upside down and the piston now facing it's rod upwards.Put some weight on the rod and the piston will get lower compressing the air beneath it because of the weight it now has.
cjl said:With all respect, it isn't just semantics - the mechanical stresses within the ceiling (which are not simply pressures) don't affect the air underneath in any way unless the building is using the air to help support the ceiling.
SteamKing said:Obviously, the OP must live outdoors, otherwise he would have felt that large pressure difference when walking indoors and promptly exploded.
The why is straightforward. Unless the structure is airtight, if there is any pressure difference then air will move in or out until the pressure difference is equalized.lundyjb said:Well of course I knew i was wrong when I posted this. Just wanted to know why.
There are a few reasons why we don't explode when we go indoors. First, explosions require a combustible material and a source of ignition, which are not typically present in indoor environments. Second, the air pressure inside buildings is regulated and does not reach levels that would cause an explosion. Finally, our bodies are not made up of combustible materials that would explode under normal circumstances.
Yes, buildings are designed to withstand and contain explosions. They are built using materials and construction techniques that can withstand high levels of pressure and force. Additionally, many buildings have safety features such as blast-resistant windows and reinforced walls to help contain explosions.
Yes, it is possible to create an explosion indoors, but it would require specific conditions and materials. For example, if there is a gas leak and a spark or flame is present, an explosion could occur. However, these types of situations are rare and are typically prevented through regular safety inspections and maintenance.
Explosions can occur in buildings due to accidents, such as gas leaks or electrical malfunctions. They can also occur as a result of intentional actions, such as arson or terrorist attacks. However, these incidents are relatively rare and are typically prevented through safety protocols and regulations.
It is possible for humans to survive explosions indoors, depending on the size and force of the explosion and their proximity to it. Buildings are designed to contain and mitigate the effects of explosions, so being indoors can actually provide some protection. However, it is always important to follow safety protocols and evacuate if necessary to ensure survival.