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The method is the same, but the formula differs depending on whether you want it in meters or feet.
The easy method in feet is to add .3 atmospheres (ata) every 10 feet (or every 3 meters) and then add a surface atmosphere, so 30 feet would be:
[(.3 x 3=.9) +1] = 1.9 ata
The simple formula for feet is: (Depth + 33)/33
For meters it is: (Depth +10)/10
One atm is defined as 101.325 kPa or 14.7 psig. A somewhat newer unit has been introduced to replace atm, particularly when working in metric units. The "bar" is defined as exactly 100 kPa or 14.5 psig. One bar is equivalent to 32.81 feet of sea water.
Wiki User
∙ 11y ago
Wiki User
∙ 13y agoThe method is the same, but the formula differs depending on whether you want it in meters or feet.
The easy method in feet is to add .3 atmospheres (ata) every 10 feet (or every 3 meters) and then add a surface atmosphere, so 30 feet would be:
[(.3 x 3=.9) +1] = 1.9 ata
The simple formula for feet is: (Depth + 33)/33
For meters it is: (Depth +10)/10
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If you go scuba diving will you see the titanicundear the sea?
NO! it is 13 thousand feet deep
Who went the lowest scuba diving?
Nemo Gomes, a South African diver descended to 318.25 meters, or more than 1,040 feet on open circuit scuba.
How many cubic feet does a 2250 psi scuba tank hold?
A standard-sized SCUBA tank holds 72 cubic feet of air at the standard pressure of 2250 PSI.
What is the commmon depth for people to scuba dive?
It depends on your experience. The limit for recreational diving is 130 feet. However, a novice diver should not be diving near that depth. According to PADI, dives deeper than 60 feet are considered deep dives.
Where are good places to go scuba diving?
Characteristically, the majority of recreational scuba diving takes place in tropical waters (which are warm, have good visibility, and lots of brightly coloured marine life to look at) in depths of less than 90 feet of water. Popular destinations for scuba diving holidays include the Caribbean, the Red Sea, Thailand and Australia, although there are many other popular scuba diving destinations in the tropics.Recreational scuba diving also occurs in other environments. Wreck diving is popular in all parts of the world, including the United Kingdom, North Eastern United States and the Great Lakes, where (in each case) the water is cold and visibility is low. Cave diving is also a popular sport, particularly in the US state of Florida. There is even a specialised form of diving known as Ice diving for particularly brave souls. However, these forms of diving are much more dangerous, and usually require much more specialised training and equipment.Some divers also choose to dive deeper than 90 feet, although this considerably increases the risk of decompresion sickness, oxygen toxicity and other dangers of diving. Diving deeper than 130 feet falls within a specialised sphere referred to as "technical diving" which requires considerably greater training and equipment to deal with the risks.
Why do you equilize ears when scuba diving?
Because otherwise the pressure in your ears can become very VERY painful. If you've ever ridden in an airplane, you have an idea what I'm talking about. As you go up, air pressure decreases, and it becomes painful on the ears. So you equalize the pressure. Now let's look at the pressures that are involved in scuba diving. Water is MUCH heavier than air. Pressure is sometimes expressed in a measurement called "atmosphere". An atmosphere is the weight of air on one square inch. So the 80,000 foot, by one square inch column weighs about 14.5 pounds! Now it takes 80,000 feet in the atmosphere to reach that much weight, but you'll go through that in about 30 feet of water. So if you're diving at 60 feet, it's actually like being under three atmospheres, or 43.5 pounds per square inch of pressure! If your ears don't like the 1/4 atmosphere pressure change of flying, imagine how much they dislike 8 or more times!
What is the best watch for a recreational scuba diver?
One of the best watch for recreational scuba diving is the Citizen Eco-Drive Carbon Fiber. Its is water resistant to 990 feet, 180 day power reserve, and the watch is light-powered.
Why is air that is pressurized needed in scuba diving?
The pressure on a diver's body increases quickly with depth. At the surface we're all breathing air at 14.7 PSIg, or 1 "Atmosphere" (atm). Each 33 feet of sea water results in another 1 atm of pressure. This means, for example, that a diver's body is under a total pressure of 3 atmospheres at 66 feet of sea water (one of air, two of water). The human respiratory system is designed to operate at normal atmospheric pressure of 14.7 pounds per square inch. If we descend to 33 feet, the water pressure exerts a force of nearly 30 pounds per square inch on our bodies. Our bodies are incapable of breathing against that much pressure. A scuba pressure regulator is designed to deliver air at the same pressure as the surrounding water, allowing us to breathe.
How does diving technology work?
The answer depends on the type of diving referred to in the question. Shallow-water diving, e.g., SCUBA (Self-Contained Underwater Breathing Apparatus), is far less complex than deep-sea diving. It requires only a tank of air and a mouthpiece for breathing. As the depth of the water increases, other factors such as water pressure arise. Including standard atmospheric pressure at sea level, the water pressure in salt water at a given depth can be approximately calculated by this equation (depth in feet, pressure in pounds per square inch - PSI): PSI = 14.7 + 0.434 x depth (ft) Example: at 100 ft of depth, 14.7 + 0.434 x 100 = 58.1 PSI. The records for "open circuit" (no rebreathers used) SCUBA diving is 1083 feet, set in 2005 by a fit, well-trained diver. That depth would kill the average diver. Another factor is decompression sickness, commonly called "the bends". This is caused by a diver ascending too quickly from a high-pressure depth to atmospheric pressure. Inert gases such as nitrogen that are absorbed by body tissues expand and create bubbles as the pressure decreases. If done too quickly, its effects can range from joint and muscle pains to death (rare, but...). Below a certain depth, the diver needs to be encased in an artificial environment. The atmospheric diving suit is essentially a personal sumbersible that totally isolates the diver from the water, allowing dives to 2000 feet or more. Pressure-wise, 200 feet = 882 PSI, which would crush an unprotected person. The suits operate at atmospheric pressure, ergo eliminating decompression and allowing normal air to be used. Since the usual public image of diving is SCUBA, the technology is fairly simple, as long as the necessary maintenance and safety procedures are zealously followed.
What things can lead to the bends other than scuba diving?
Rescue from a submarine, at a depth of 1,000 feet, and being brought to the surface too quickly, can lead to the bends.
How deep can people swim in the ocean?
In a bathysphere, where the inside is at atmospheric pressure, tens of thousands of feet. In a hard suit, where the inside is at atmospheric pressure, a thousand feet depending on the suit. Ditto submarines. SCUBA diving with compressed air, about 100 feet before you get nitrogen narcosis. Free diving, with weights pulling you down, I think the record is something like 500 feet. People die trying this. "Technical" diving, with oxygen/argon/helium mixtures, hundreds of feet. Records are much deeper than people can actually work. Note: messing around diving with home-made compressors or no training can kill you real fast.
As a certified SCUBA diver isn't it true that I can take an uncertified person diving to depths of 40 or 60 feet?
Being certified, shouldn't you know this valuable information? But the short answer is a loud and resounding "No!"
