What is the deepest you can dive using special gas mixtures? What depth will crush the human body?
by 
Graime Haynes
ANSWERS: 8
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you could only go about 500 feet and the dept of 1,000 feet about will crush the human body.
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Navy divers using special mixes regularly go to 2000 feet. I don't know that there is a stated for sure answer as to what depth would crush the human body.
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I don't have a degree in any of this but it would seem that you could go down to any depth. If I am correct, the human body is made of about 70% water. This means that 70% of you body couldn't be crushed. Then there is the other 30% though. But this should all be air space. This is the part that pressure would be able to crush, however the pressure on the outside is matched by the pressure exerted by the compressed gas you inhale from your regulator. But, I could be wrong about all of this, and please correct me if I am.
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34,000 feet. Who the hell cares? I don't. My original answer could have helped you but: Answer removed in protest of AB staff's lack of action protecting the membership from the COAT gang and their skewing answers.
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I belive the deepest any person has gone is 730 msw however this was a 'dry' run in a chamber using a hydrogen, helium and oxygen gas mix and the divers were not in a working condition as they where suffering from HPNS (high pressure nervous sindrome). The limit of conventional sat diving is around 650 msw but it's very rare to blow down sat divers to that depth now as deep water rov's can perform most tasks but every now and then you need a good old fashioned bubble head down there to do the work. As for crushing the human body you can irreblibly damage your ears if you don't equalise them on the way down but I have never heard of anyone being crushed.
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the maximum depth was reached in a 42 day saturation experimental diving by Theo Mavrostomos in Marseilles in 1990. The gas used was hydreliox.
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I know some divers in Seattle that work on maintaining the anchors for our floating bridges on Lake Washington. Officially Lake Washington is about 900 feet deep, but they say that it is around 1000 feet. They use dry suits, and a nitrox mix. From what they say, they can stay down for about two hours to do surveys. After that, they have to come up to warm up.
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Th. Mavrostomos is the human thats been the deepest, 701 meters(during a test dive for comex on the gass hydreliox,Oxygen,hydrogen and helium). The body wil not crush under pressure (if you breath you equlise the pressure).But trials have showed dammage of nerves and related problems. so Theo is probably close to that limit at 701 meters. In the norwegian offshore no human dives are done deeper than 180 meters becous of risk of later nerve dammage. Comex did test dives faar deeper with animals(1500meters)and got them to surface allive...
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