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The rate of respiration decreases in water due to atmospheric pressure (similar to when you climb up a mountain, you cannot breathe easily).
If you're wondering why the shape of the container is cylindrical, it's to keep the water pressure even around it so that it doesn't break nearly as easily as a square one, for example.
Wiki User
∙ 8y ago
Wiki User
∙ 12y agoThey need oxygen to breathe. The tank allows them to stay down longer. New technology has brought us a 'Rebreather', and (soon) prosthetic gills.
See the related link listed below for more information:
Wiki User
∙ 11y agoDivers don't usually bring O2. The normal compressed gas in a divers tank is just compressed air. If a diver does bring pure oxygen, than that diver is going to extreme depths and needs to replace the increasing hydrogen in the blood stream with oxygen. If they are doing this this than hey usually have 2 tanks of compressed air, 1 tank of O2, and one tank of enriched air (helium and oxygen).
Correction:
The above is half wrong. The deeper a diver goes, the less oxygen will be in the gas mix (not more). Additionally, it is not hydrogen that is the problem, but nitrogen. When diving deeper, the nitrogen is replaced with helium. And enriched air is not a helium oxygen mixture, but air that has oxygen added so it is comprised of mostly nitrogen and oxygen. So the deeper the dive, helium will be added (and oxygen will be decreased) and only during decompression stops as the diver gets shallower will more oxygen be present and not until 20 feet (6 meters) will pure oxygen be used if it is a technical decompression dive.
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What is the mixture of gases in a deep sea divers air tank?
95-98%helium 2-5% Oxygen
What is an aqualung?
An aqualung is a piece of equipment consisting of an oxygen tank and breathing apparatus used by divers to allow them to breathe underwater at depth.
Why do scuba divers need to bring oxygen tanks while fishes do not?
Because fish have gills and can breathe under water and humans do not
How do scuba divers breathe underwater?
They don't breathe normally on their own.They have to use pressure regulators to breathe naturally, overcoming the extreme pressure deep underwater.A snorkel and oxygen tank help the divers breathe when they are underwater.
Is there a way of breathing underwater using a small oxygen tank with a directly connected mouthpiece?
yes, basically you're just saying what scuba-divers do
Why did astronauts bring an oxygen tank to the moon?
This supplied them with oxygen for them to breathe in space, as well as supplying some power for the command module. That is why the explosion on Apollo 13 of an oxygen tank was so serious.
Name something deep sea divers wear that you look silly wearing in a swimming pool?
Flippers Oxygen Tank Wet suit Snorkel Mask
Your dive tank has 3 year old gas in it is it safe to use?
The use of an oxygen analyzer would be advised. Most nitrox and technical divers have one.
In an air tank like the kind used by miners and divers what purpose does nitrogen serve?
Fist it gets rid of the trouble having to separate out which gasses to fill the tank with. Secondly we can't breathe pure oxygen.
How will astronauts get oxygen?
Their suits-similar to divers.
What item is a traveling oxygen patient not allowed to bring on an airplane?
Patients cannot bring or use their own oxygen tanks on an airplane; therefore the patient must leave his or her portable oxygen tank at the airport before boarding.
What is the name of a compressed air cylinder used in skin diving?
Divers (and others) call the compressed air cylinders used by divers tank(s) or SCUBA tank(s).
