Otherwise as long as the diver is able to equalise their air spaces with gas, they prevent being crushed. A Pressure Suit traps a gas bubble around the diver underwater. To prevent crushing, divers need to ensure gas pressure inside the suit is equal to the water pressure outside the suit. If suit pressure drops, the decrease in gas volume inside the suit would crush the diver.
Commercial divers double check their non-return valve before their dives. Failure of this valve in the event of a gas supply failure would create a vacuum inside the suit crushing the diver. At great depths, high pressure would completely crush the diver. An Atmospheric Suit is a hard suit able to withstand the pressure of the surrounding water on its own. The gas inside these suits is at 1 bar same as our atmosphere. By being rigid, the water will not crush the diver inside these suits. John Lethbridge first conceptualised the atmospheric diving suit in The depth limits of these suits is currently around meters.
We all know solid water as ice. A gas turns into a liquid if cooled enough. In turn, a liquid turns into a solid if cooled enough. This is how we turn water into ice. So, freezing a human would kill them, however, that is not technically crushing them and not what we are looking for.
As mentioned above it is theoretically possible to cool any liquid to arrest particle movement, making it a solid. It is theoretically possible to apply enough pressure to a liquid to restrict particle movement enough in order to turn the liquid into a solid.
Water is rather incompressible. Solidifying water requires immense pressure. This amount of pressure does not occur in any diving conditions on our planet. If the water pressure was high enough in order for water to solidify under its own weight, we would be unable to submerse ourselves or dive into such water.
The deepest point in our ocean is just on 11 kilometers. Since the water down at those depths is still liquid and not solid, there is not enough depth in our ocean to solidify water simply with pressure. Water remains a liquid at even bar or pressure. The human body would therefore not solidify under that pressure. Joining has its benefits and enables you to participate in the discussions. Joining is quick and easy.
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You should upgrade or use an alternative browser. Thread starter scubaperro Start date Apr 11, Please register or login Welcome to ScubaBoard, the world's largest scuba diving community. Benefits of registering include Ability to post and comment on topics and discussions.
A Free photo gallery to share your dive photos with the world. You can make this box go away Joining is quick and easy. Messages 10 Reaction score 0. If my facts are right, I hear u can only scuba dive down to feet because your air becomes toxic after that. Messages Reaction score 0 Location St. This means that you breathe in more air, thus more nitrogen. The body does not require this at all, but it all the same has its effects.
Being an inert gas, nitrogen will be absorbed by the fatty tissues very fast. Now, the brain and the nervous system have a lot of fatty tissue. When you breathe compressed air, the two of them are affected to such an extent that the victim experiences drowsiness or loss of consciousness under the water. There is no standard depth at which you can start feeling the effects of narcosis.
It is best to time yourself and know how your body reacts. Some divers can dive past 60 meters without suffering from narcosis.
Others can start feeling the effects of Narcosis in as minimal as 20 meters or even less. So it is always good to know your level of vulnerability. The good thing is that as soon as you ascend, the effects of narcosis drop immediately and there are no after effects at all. This is another controversial topic. You see, it is not recommended to dive without your gear.
Also called free diving, many people have attempted this and there are many incredible records. For example, one free diving enthusiast did an impressive feet down. Well, in this case, the diver was well trained, and he was in a competition. At feet, the water would slow the heart, squeeze the lungs and shrink your blood vessels.
It would also cause narcosis as we explained in the section before this. A technical free diver would take about 5 minutes or less to complete such a dive. However, it is recommended that you do not attempt such as it is very risky.
With just the personal diving gear, it is hard to say just how deep a diver can dive without being crushed. However, we know for sure that the mark has been reached and surpassed by many people. We also know they came back up alright and sound. It is said that divers of a French water exploration company have reached a depth of feet of diving. That was some years back. Whether this mark has been passed, we do not know yet.
The main worry is not that you will be crushed by the weight of the water. Rather, it is that your lungs could be squeezed lifeless. There is the big risk of nitrogen narcosis since you will not be taking the decompression break. Your blood vessels would be at the risk of shrinking.
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