Understanding the Direction of Pressure in Air and Water Environments

In summary, the pressure at the bottom of the ocean is exerted from all sides, but the pressure is slightly higher underneath due to the weight of the water columns. Therefore, if you swim out from a submarine at the bottom of the ocean, you will experience crushing pressure from all directions, with a slightly higher force pushing you upwards.
  • #1
False Prophet
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If you're on a submarine at the bottom of the ocean and you swim out, do you get crushed from all around, or just from the top? I read in a couple places that the pressure is exerted from all directions, but I thought that the pressure is like the "weight" of all the fluid stacked above you. I don't know; please advise.
 
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  • #2
There is also the weight of the columns of water above the water beside you. The water on your left and on your right will try to move out from under the columns above them by crushing you.
 
  • #3
False Prophet said:
If you're on a submarine at the bottom of the ocean and you swim out, do you get crushed from all around, or just from the top?
You'll get crushed from all sides. But since the pressure is a bit higher underneath you, you will be pushed more by the water underneath you. The water pressure, in addition to crushing you, will exert a net upward force on you.
 
  • #4
False Prophet said:
If you're on a submarine at the bottom of the ocean and you swim out, do you get crushed from all around, or just from the top? I read in a couple places that the pressure is exerted from all directions, but I thought that the pressure is like the "weight" of all the fluid stacked above you. I don't know; please advise.

Yes, this confused me too, but remember that the water below you has to support this "column weight". So as Doc Al said, the pressure below you is even higher than the pressure above.
 

FAQ: Understanding the Direction of Pressure in Air and Water Environments

What is air/water pressure direction?

Air and water pressure direction refers to the direction in which air or water molecules are being pushed or moved. It is influenced by various factors such as temperature, altitude, and surrounding objects.

How is air/water pressure direction measured?

Air pressure is typically measured using a barometer, which measures the weight of the atmosphere pushing down on the Earth's surface. Water pressure can be measured using a variety of tools, including a manometer or pressure gauge.

What causes changes in air/water pressure direction?

Changes in air and water pressure direction can be caused by a variety of factors, including temperature changes, wind patterns, and the presence of high or low pressure systems. Changes in altitude can also have a significant impact on air pressure direction.

How does air/water pressure direction affect weather patterns?

Air and water pressure direction can greatly impact weather patterns. High pressure systems typically bring calm, clear weather, while low pressure systems are associated with stormy weather. Changes in pressure direction can also influence wind patterns and the formation of weather fronts.

Can air/water pressure direction be predicted?

While it is not possible to predict air and water pressure direction with complete accuracy, scientists use various tools and models to make forecasts and predictions. These predictions can help us prepare for potential weather changes and make informed decisions.

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