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Scuba

~1700 answered questions
Parent Category: Sports
S.C.U.B.A. = Self Contained Underwater Breathing Apparatus. Here is all the information you need to learn and be safe while enjoying this great sport. Explore the last frontier and uncharted depths in the S.C.U.B.A. category.
DEFINATELY NOT!!!! The largest pressure change is between 30 feet and the surface, You could give the Baby decompression sickness without showing symptoms yourself !!! You shouldn't scuba dive during pregnancy, the safety issue really hasn't been ruled out, but I wouldn't risk it. On the health wa…
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The BCD (buoyancy compensator/control Devise) low pressure line is connected to the second stage of the regulator. International Divers Incorporated devises are compatible with other manufacturers of two stage diving equipment.AdditionAny regulator will work. It is not the regulator, but the size of…
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A repetitive dive is any dive that occurs before off-gassing of nitrogen has completed. This time will vary depending on the dive, and the dive table used. US Navy Dive tables give a maximum length of time for this to occur as 12 hours, while NAUI dive tables put it at 24 hours. Under PADI tables y…
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Diving, using trapped/contained ambient pressure air with no air-supply connection to the surface, likely began many centuries ago. With enough weight to counteract the buoyancy of the trapped air, almost anything is possible, and was probably attempted. Breath-hold or 'free' diving's origins, howev…
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Given a solid suit or vehicle, where pressure is maintained near normal sea-level (1 atmosphere), there is obviously no limit, except that we haven't yet built a machine that can with-hold that type of pressure yet. But for humans without such protection, the pressure levels in water below 1000 feet…
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The pressure increase is dependent on density of the water. Pure water at 60F has about 27.78 inches of water column (INWC or INWG) per psi or approximately 0.43197 psi/ft. This is from memory; but it should be close. Fresh water: 0.43 psi per foot Sea water: 0.44 psi per foot. So, for each additi…
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sharks generally do not care that much for human blood.. now put a few drops of fish blood in the water and that is a different story...   For what it's worth..."There is no evidence of increased shark interest in a menstruating female. The hemolytic blood associated with menses may instead a…
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Answer It is a matter of word choice. BC stands for bouyancy compensator, while BCD stands for bouyancy compensator device. They are the same thing, just under slightly different names. They are further broken into three catagories: jacket/vest, back flotation, and horse collar. The latter is rar…
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Answer Scuba history from a diving bell developed by Guglielmo de Loreno in 1535 up to John Bennett's dive in the Philippines to amazing 308 meter in 2001 and much more... For more information please see lnks below for more information.
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No reputable dive operator will allow a non-certified person to scuba dive on their own. In fact, most will not even fill the tank of a non-certified person. However, formal programs do exist to allow people to experience scuba prior to certification. Many dive operators in resort destinations offer…
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Answer Depends on where you are. Often its shrimp. Could be fish feeding on coral. If you are in California in the spring you might be hearing Garabaldi guarding his nest. Sound travels much further under water. What you hear in Tropical and sub tropical waters is fish,shrimp and other forms of …
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It's unlikely that fillings would ever crush, but theoretically an extremely badly made filling could crush from the pressure of a deep descent. A more common dental issue associated with diving is empty pockets of air in a filling expanding as you ascend and causing pain. It's worth mentioning tha…
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Scuba Diving This cannot be answered definitively, especially without knowing the depths of the morning dives. However, this is almost certainly not safe and not worth the risk of decompression illness. Improvement Going to Altitude after Diving is the same as flying after diving. There are many tra…
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Answer Yes, you can, but you can also lose contacts underwater, just like anywhere else. If your mask floods, keep your eyes closed until you clear your mask. Contacts are okay as long as they are the soft kind. If you wear hard lenses it is not advisable to wear them at pressure, or while scuba d…
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Answer taking the normal density of water as 1g/cc, the amount of water in 1 cubic inch would be 16.387064 grams. Addition about 1 cubic inch.
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If you're a certified diver, you should have a dive table to figure out how many dives you can make safely within a certain time frame. There are several factors to consider: Depth of dives, length of dives, time between each dive, conditions, health, whether you'll be flying before or after the di…
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June 2005, a South African called Nuno Gomes, had Reached the depth of 318.25m in the Red sea. The Guiness Book of World Records still records this as the deepest ever scuba dive.Later 2005, a French diver named Pascal Bernabe reportedly dived to 330m exactly, but for some reason that dive has never…
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Basic Scuba EquipmentYes, while most every piece of equipment is rentable. I would only invest in your own mask, fins, and snorkle to begin with. Wait and make sure that you are really into the sport before dropping the several thousand dollars on the BCD, Regs, Tanks, and such. It's kind of a waste…
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Blunt-Tipped Knives Many dive knives have blunt (squared-off) tips. This makes them safer. You're not likely to need a sharp-tipped knife underwater. You're more likely to just need the cutting edge. Sharp tipped knives tent to snap off and break when prying at things. The blunted tip is more pr…
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Steel vs. Aluminum Scuba Tanks They are both excellent but you need to compare several features. What is the size of tank and the pressure required to get to full capacity. Some dive boats and some stores wont fill past 3000 psi on a tank. I was on one boat that could barely get us to 2600psi. Thos…
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Buoyancy of divers The question is based on an incorrect assumption. The correct question is "Will a person become less buoyant as he swims deeper? Why or why not?" The answer is "it depends." If the person is freediving - yes. His lungs will compress and his volume will decrease while his wei…
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Answer Goggles are designed to protect your eyes from the water, yet to be sleek and unobtrusive at the same time, so as not to interfere with your speed and motion. The rubber that surrounds the goggles is meant to keep water away from the eyes. ---- Note that diving to any depth over perhaps …
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SCUBA is an acronym for self contained underwater breathing apparatus.the idea of scuba started with people using any type of breathing devise to breathe while swimming underwater, but the most well known creator of scuba is Jacques Cousteau who was apart of the French NAVY. He created the Aqualung …
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The answer to this question depends on the oxygen concentration that you are using and, to a degree, your body chemistry. Hal Watts has reportedly made many "bounce" dives on "air" (21% oxygen 79% nitrogen) in excess of 400 feet in sea water. Discounting the narcotic effect of nitrogen, ambient O2 o…
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Weight needed for scuba divingThe less overweighted you are, the more control you'll have over your buoyancy and trim. Ideally you want just enough to sink at the END of your dive - so on the surface, with a (mostly) empty tank, no air in the BCD, and no air pockets in the wetsuit you should be able…
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Yes a woman can wear a male wetsuit. Tho the fit will be off in places. Arms, legs or torso to long, or the chest or hip areas are tight. A woman's wet suit give more room in the chest and hip area for the size than a male's suit. Also the arms and legs are more in proportion for the length. ANSWER…
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Answer Take it to a Scuba shop. Air must be free of moisture and oil!!! if you try to fill it yourself the oil from standard compressors gets in the air and under pressure produces carbonmonoxide which will kill you
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Answer Tanks are filled using an air compressor capable of producing over 3000psi coupled with a filtration system that purifies the air to a level acceptable by the Compressed Gas Association as breathable air for scuba. Take Care This is not a "do-it-yourself" project - Scuba Diving facilit…
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In 1772 Frenchman Sieur Freminent invented a device that recycled air within a diving bell. He did not live through the testing of his invention. In 1865 Benoit Rouquayrol was tested as the forerunner of SCUBA gear. The diver was connected with a hose to the surface to get air. Over the next few dec…
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The first equipment used that actually allowed breathing underwater was invented in 1620 by Englishman Cornelius Drebbel. Designed for use in an oar-powered submarine, it used heated saltpeter to emit oxygen. The resulting potassium hydroxide absorbed the carbon dioxide produced during respirati…
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GBR in Australia Improved Answer There are many locations which rival the Great Barrier reef, the barrier reef is impressive for its sheer size. The question itself is a bit subjective. Sipadan in Malaysia has a fantastic reputation for pristine reef and sea life.
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Hi Imbaai! Buoyant force is an upward force exerted by a fluid, which opposes the weight of an object in the fluid. Objects immersed in water observes a loss in weight due to buoyant force. Hope it is clear! Cheers!!
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Scuba stands for: SELF, CONTAINED, UNDERWATER, BREATHING, APPARATUS.Breathing
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Hugh Bradner,
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Get the Bends They get the bends; Nitrogen Narcosis. Nitrogen bubbles form in the blood, which is a least painful and at worst, fatal INCORRECT - Nitrogen Narcosis is brought about by breathing Nitrogen at depth and is resolved by coming up to a shallower depth. The rest of the answer is essential…
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No one knows exactly how much pressure the human body can withstand, but it is deeper than 1,500 feet.
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This depends on the use of muscles, not just their existence. Some people have a higher metabolic rate than others and this would lead to their air being used quicker as their heart requires a higher rate of oxygen and therefore the lungs have to provide more and so work more often. A muscular div…
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It depends on the size of the tank. The standard tank used at most scuba diving training facilities use an aluminum 80. The tank weighs around 21 lbs. full. As the tank is used during diving it becomes more boyant, meaning that you need to use more weight at the end of the dive then you need at the …
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you could be a photographer, scuba diving master or a scuba diving instructor that teaches diving or a marine biologist i think. There are more than just these though.
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Answer My open water water course cost me around £300. I did do my open water dives in the Red Sea and the cost for a week was £500. That included diving everyday. I suppose it will depend on where you go. I completed my advanced open water course in Rhodes and I think it was less than £200. …
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Get the proper training. Don't push the limits of that training. Inspect and maintain the equipment you will use. This holds true for any diving, deep or shallow. Diving can be a safe, fun sport if the rules are followed. Disaster can happen easily when the rules aren't followed. Also, consider pur…
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There are in fact 2 great racers in Nascar History, The King (Richard Petty) and Dale Earnhardt Sr. They are the best racers Nascar has ever Seen.
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See: http://www.payscale.com/research/US/Job=Commercial_Diver/Salary
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Free Diving Free diving is the sport of diving without external breathing apparatus. While free divers often use artificial ballasts, cables and sleds, to propel them to record-setting depths, they make their dives on a single breath of air. Tanya Streeter, born in Grand Cayman on 10 January 1973, …
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I'm twelve and have had 6 fillings =[
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Answer Most training agencies don't have a set maximum age limit but recommend that you not dive if you are unable to handle the physical and emotional stress required to safely bring yourself and your buddy to the surface in the event of an emergency. Health and physical condition are the benc…
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Answer There are not any courses that would train you to dive this deep. Recreational divers are trained at depths up to 130 feet, over 5,000 feet short of your 1 mile mark. Tech divers are trained to dive deeper, however, the pressure of the water at the depth that you asked about would most lik…
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This is really a loaded question. The deepest dive in history was to 308M or 924FT by John Bennett (Tech Dive Academy, 3/23/10). However, this dive was vastly deeper than the normal 'recreational' depth limits. According to the scuba industry the recreational depth limit is 130FT or 43M. To reach th…
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How popular is SCUBA diving? Some people are afraid of water. Don't ask them. If you ask a diver, he'll tell you there is nothing on earth remotely like it. He would be right. SCUBA diving is a very popular sport. Not as popular as some participation sports, but more than others. Diving offers the d…
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The short answer to this is: the one that provides the best fit. All manufactures have different fitting suits. I am 6'6" tall, so I have dealt with this problem most of my life. I now dive with a dry suit as they are much more forgiving for sizing.If you plan to dive in warm water only, I would loo…
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One cudic foot of water weighs 62.5 lbs.
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10 years old or older
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Answer Truth be told most major brands (akona, cressi, seaquest, cameo, body glove which you can get from dipndive.com) are really about equal. The owner of my dive shop said once that there are a limited number of makers of the neopreme used in wetsuits and that many different brands use the same s…
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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.
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The aqualung was invented 1943. Prior to that scuba diving was done on rebreathers, but they were really only used by the military.It was invented in 1942 and but they started selling the scuba gear for other people in 1943.
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Answer To fit more in. If it was at 1 atmosphere of pressure it would be like breathing out of a bag. (You would run out of air in about 5 or 6 breaths) Addendum: I should add that it's not oxygen in SCUBA tanks; it's air. Oxygen when delivered under pressure, can cause convulsions. You'll neve…
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1 ATM = 14.7psi = 10meters of water
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No, but there are reduced bottom times compared to sea level diving due to the reduced pressure when you surface. Since ambient pressure is lower at altitude, a comparable nitrogen load will result in easier bubble formation in your body. The major certifying agencies offer courses in altitude divi…
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People (including me) go SCUBA diving because it's fun! It's like taking a walk through a beautiful forest, only the "forest" in question is underwater. It's an awesome experience!!!
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go to another web sit people are telling the wrong information at least i used correct spelling not like u.... remember website is a one word not 2 words and remember site not SIT... b4 u judge other answer judge urself first unfriendable
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Steel has been used as a tank material since the begining of scuba diving. Extremely durable and useful as a tank material but steel rusts. Buy a steel tank, assume that over the life of the tank it will cost you for a few tank tumbles to remove interior rust. Pay more for a steel tank than an alumi…
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It allows people to go underwater in a hostile environment, so it has done this. It has also caused us to discover more about the marine life, and it allows us to repair ships.
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Almost all paintball fields have them, and some sporting goods stores. But also check diving shops, gas shops (places that sell oxygen and co2 tanks) and firehouses, if they are closer.
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In the basics like masks, fins, and snorkel it has changed very little. In breathing apparatus it has changed significantly. The largest change has been the move from two hose regulators to single hose. The adoption of Diaphragm and environmentally sealed regulators is another big technological lea…
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You will get as many different answers to this question as people that you ask. The "big three" of Caribbean diving are considered to be Bonaire, Cayman and Cozumel. But there is excellent diving all the way up and down the Caribbean. Roatan, Turks & Caicos and Saba are also mentioned as top des…
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1 ATM is actually equal to mean sea level itself. Now if you filled a balloon with air and put it under the water, you would notice that the volume will decrease. This decrement will increase as you go further down. Since the volume is decreasing, pressure must be building up inside (PV=nRT), assumi…
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First, the introduction. (Apologies, but it's important and relevant.) *Note: The fact that the diver is breating compressed air has a profound affect on the body if decompression standards are not met when coming to the surface having spent time at depth. Divers who do not decompress properly can …
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Modern scuba diving gear consists of one or more gas tanks strapped to the divers back, connected to an air hose and an invention called the demand regulator. The demand regulator controls the flow of air, so that the air pressure within the diver's lungs equals the pressure of the water. Emile Gagn…
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Answer Wear a wet suit with sleeves just so your tattoo won't fade out a little of its color regardless of it is on your arm, hip, head, neck, leg, or anywhere else that i probably won't wonder about. Answer get a tattoo after u go scuba divin Answer You're probably safe, but why take…
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Jacques Coustau (sp?) Jacques Cousteau is given the credit but many inventors before Cousteau had successfully invented SCUBA (Self Contained Underwater Breathing Appatartus) inclunding the following (all from France). Rouquayrol and Denayrouze (1864) with tank and demand regulator Yves Leprieur…
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Yes, you can fart at depth with no ill effects. In fact it shud be easier to fart. Have you ever realised how you burp after swimming, or surface diving? Its easy to burp at depth, but farting is slightly different, it is a mainly hydrogen sulphide and methane, and is created by bacteria inside the…
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It is used to plan your decompression so you do not come up with excessive nitrogen in your blood therefore giving you the bends. The tables give you time limits at different depths where most people will not get decompression sickness. There are different tables out there, but all have the same co…
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six times six is 36
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free diving is where a group or one person goes into the sea and dives; without a oxygen tank. they then proceed to go as far down as they can and the one who goes the furthest down wins. free divers are required to have a good lung capacity and as healthy body, it is advised NOT to try this, free d…
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There are so many variables that determine the price of a tattoo, there's no way to answer your question. But I can tell you what a few of those variables are: 1. Size of tattoo: small ones are cheaper than big ones. 2. Length of time needed to complete: Some small tattoos are more intricate than …
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it helps you breath easily underwater, so you dont haave to keep going up for air
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Perhaps the greatest risk is panic. When people panic, they tend to hold their breath and, when they ascend, the air in their lungs expands and can rupture a lung (or other similar medical conditions). It's easy to avoid though -- just breath normally. Staying down too long is also a problem. When …
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15 While it is true that at age 15 one can enroll in an adult course leading to certification, many certifying agencies offer a Junior Diver Certification program begining at age 10. However upon successful completion, the young diver has restrictions on both depth and who can accompany them on di…
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1943
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you may have to get a certain type of mask, but i think you can. ----There are indeed frames that mount inside your mask and hold lenses crafted for your prescription. They're a bit different than your glasses, as they mount in the mask and thus a little ways from the face. But....I haven't seen the…
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That depends on experience level and what you want to see... for easy reef diving in near-perfect conditions, Curacao is highly recommended. Was there for a week and did all dives less than 60 feet. Tons of dives to do from the shore... we were able to dive from the beach of our hotel and it was gor…
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SCUBA locations and their ratings are purely subjective. It depends on what kind of diving you like to do and what area you live in. Florida has a wide range of life and tropical temperatures. It is also famous for its cave diving. I think there are some nice wrecks there as well, including intern…
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This depends on what you want out of your sport. If you like wrecks then the classic sites would be Guadalcanal, Truck Lagoon and Scapa Flow - although the Thesis in the Red Sea and Thistlegorm in red sea Egypt which is a huge wreck from world war 2 with life ammo, motorcycles and canons and other f…
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Wetsuits are typically made out of an insulating, rubber-like substance called neoprene and they are designed to fit snuggly (but not too tight). When a diver first jumps into the ocean, a small amount of water will seep in and form a layer of water between the diver's skin and the neoprene wetsuit.…
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HISTORY The first known equipment to actually allow breathing underwater was invented in 1620 by Englishman Cornelius Drebbel. Designed for use in an oar-powered submarine, it used heated saltpeter to emit oxygen. The resulting potassium hydroxide absorbed the carbon dioxide produced during respirat…
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Scuba divers can work at 109m if they are very cautious rising to the surface.http://www.divediscover.whoi.edu/robotics/deep.html
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Try Crocs - I have heard a lot of positive acknowlegdements amongst people who are on a boat, in and out of water a lot. It's a great multi purpose foot wear - dry or wet.
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The Short Answer - 130 Feet Divers who dive for sport are certified by the recreational training agencies (PADI, NAUI, SSI, BSAC, etc) to depths as deep as 130 feet. Most recreational diving takes place above 100 feet and many regional dive operator organizations, including the Cayman Islands Waters…
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You can convert shoe sizes to scuba flipper sizes by choosing fins that are full finned or encase the entire foot. These are sized exactly like shoes are sized. Open fins, or the type with the strap that goes around the back of your foot, are sized just one size larger than your normal shoe size.
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This can be a very subjective answer. Everyone will have a personal favorite, but most people tend to lean towards the gear that their instructor uses or recommends.This answer also can depend on the actual equipment involved. I have personal favorite brand for my regulators, but that brand does not…
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I asked this question to a professional surgeon once. he told me 'so long as the blood sugar levels are monitored more frequently there is nothing wrong with any normal activity. During sports like diving and swimming energy is used alot quicker so your blood sugar levels may drop quicker, but not i…
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While we drive we should be carefull.
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There are a few reasons why a new tattoo looks dull. It could be bad quality or that the person did not take care of it correctly.
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The Gulf of Mexico is a popular place for scuba diving. More and more artificial reefs are being placed, attracting more fish and coral growths.
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I doubt PADI (or any other agency) will give you an answer other than to wait 24 hours before diving ... which is the end result of this answer too. Are you asking about DCI from simply working in a mine and then exiting the mine, or is the question that you work in a mine and then sometime after wo…
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Tattoo's are a symbol to each person that gets one. Tattoo's usually have personal meaning to the person. Two tattoo's can be exactly the same and have two different meanings to different people.
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Water won't crush you at any depth if you are able to fill your body cavities (lungs, middle ear, sinuses) with compressed air at the same pressure as the water. If you don't have compressed air to breathe you will have a very difficult time going more than 500 feet down without suffocating, not fro…
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It lets you go diving.
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