You can scuba dive in several places. You can dive in the Caribbean, such as Jamaica, and the other islands. However, you have to be 16 to dive there at all. You can dive in several other places, but for more information you could ask a travel agent.
You can also Scuba dive at Manly beach(shelly Beach)
According to NAUI's dive tables: 25 Minutes
17 Meters for 23 minutes: Group E
30 Minutes at surface: Still Group E (Would need 55 minutes to go to D)
25 Minutes is your adjusted maximum dive time for up to 18 meters.
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. The diver's body will warm that water to nearly body-temperature. Because the wetsuit fits snuggly, that water does not circulate with the ocean water, it stays against the skin forming a warm insulating layer between the diver and the ocean.
It should be noted that wetsuits are not appropriate for diving in all climates as they will only keep a diver so warm. Another kind of suit called a Dry Suit is worn for dives in very cold water, and these suits are much warmer. The use of dry suits requires additional training, however, to learn how to handle the additional buoyancy of the air in the suit.
Can you scuba dive wearing contacts?
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 diving.
Subjective Answer
I am reporting in, my instructor wears contacts for tech dives to 250' plus, and I have worn contacts for 52 dives to depths of 125' without issue. Many modern soft contacts are 'gas permeable' meaning gas can escape through them. I decided to play it safe prior to getting contacts for diving and went to a full blown ophthalmologist (not just some fool at a glasses store). He said that it wouldn't be an issue at all.
Addition
I am a scuba instructor for more than 25 years with thousands of dives as well as being a tech diver that has made multiple 400 foot dives. I too wear contacts and have never had a problem. I wear "hard" lenses referred to as rigid gas permeable lenses. Gas exchange does occur and there are no known problems. There is also no pressure differential where you can't equalize a contact lens ... otherwise they would be popping off during an ascent - which simply does not occur. I have only had a lens come out twice during my years of diving and my mask has always trapped the lens for me.
Why is there nitrogen in a scuba tank?
It varies. Divers use different breathing gases depending upon their needs.
For standard air, it is 21% oxygen and 79% nitrogen.
For nitrox, it can be any higher mix of oxygen, but typically either 32% or 36% oxygen, and the balance nitrogen.
For trimix, you can have almost any combination of oxygen, nitrogen and helium to suit your depth, and manage your risk to oxygen toxicity and nitrogen narcosis.
What is Boyle's law in regards to scuba diving?
Boyle's Law: (P1 X V1)/T1 = (P2 X V2)/T2 applies to scuba diving since there is a significant change in the pressure. As the pressure of the surounding water increases with depth, you are required to use far more air from the SCUBA tank to provide for your breathing. If you use one cubic foot of air at sea-level, doubling the atmosphereic pressure as you go down causes you to use your compressed air at twice the rate. By the time you get very deep you are using your air at a very high rate.
What is composition of clean air?
Approximately 79% nitrogen and 21% oxygen
I thing more accurately it is more like 20.5% oxygen, and the rest is nitrogen and other gasses. Carbon dioxide only makes up around 0.03% of the air
What happens to the air from a SCUBA tank as you go down?
It passes thru the regulator where the surrounding pressure of the water regulates the pressure of the air in the line so that it is equal. This prevents any pressure differential that would make it hard to breathe.
As for the air in the SCUBA cylinder, nothing happens to it as you go down. The pressure stays the same, etc. As to how breathing from a SCUBA cylinder works, there is an excellent answer under the question "How do you breathe underwater when you go scuba diving?"
What is dangerous about deep sea diving?
A full range of injuries are possible with diving the same as any sport. including death. a number of divers have been killed by hitting their head on the board after take off. crippling injuries that result in a person being in a wheelchair for the rest of their life is fairly common in untrained people using public diving boards.
the common injuries are sprains pulled muscles and bruises. note that injuries can occur from low heights if the entry is not correct. Also it is common for people to break their neck or back when they dive into water that is too shallow. this often happens on holidays with people diving into the sea rivers lakes etc. as well as swimming pools.
How is the diver treated for the bends?
By represurising the diver to the presure that he was at then slowly normalising it. this is done in a decompresion chamber. If a decompression chamber is not used, the person will die immediatly. Do not pass go, do not collect 200$ The above is a nice basic answer. Decompression sickness results from bubbles occurring in the body after surfacing from a dive. The treatment is to recompress the diver in a recompression chamber (not a decompression chamber) to a certain pressure or depth. Different facilities use different treatment methods and therefore different depths as well as different treatment times. The pressure on the diver makes any bubbles in the body smaller and therefore easier to eliminate as well as relieving any pain the diver is experiencing from the bubbles. The diver is also given oxygen to breath since this will cause the excess inert gas in the diver (i.e. nitrogen if air was used to breath during the dive) to be eliminated faster (since nitrogen is no longer being breathed and therefore it has a pure driving force for elimination).
Why do Scuba Divers enter the water backwards?
Just because it is easier. It's hard to stand up in fins (FLIPPERS) on a rocking boat!!
Do you wear a jockstrap and cup when biking?
Cups are mandatory for Baseball, Softball, Hockey, LaCrosse and any other sport where a ball, puck, or stick is used and could come into contact with your balls or penis. Of course, some choose not to wear one, but believe me, when you take a hockey stick in the groin or a line drive to your testicles, you'll regret not wearing one.
I think that soccer is where the biggest debate occurs about using a cup. Some say it's a good idea, but others say that with all the running and other leg action that goes along with soccer, the cup either gets in the way, is uncomfortable, or both. Some say the "soft cups" work well for soccer but of course don't offer as much protection.
Guys do end up in the hospital for testicular injuries suffered while playing sports. The phrase "burst testicle" is not appealing to me!
Some guys prefer to wear a cup in what are thought of as "non-contact" sports too. This may be because a cup supports and holds the vitals differently compared with a regular jockstrap. For some guys, a cup is more comfortable and adds to their physique more compared with a regular jockstrap.
Answer:
I agree with the first answer, except that I don't wear a cup for soccer. I always wore a jockstrap with a cup for baseball and lax, but for soccer I just wear a regular jockstrap. A cup seems like overkill. Like wearing a helmet for soccer! But I do need the support of a jock.
Can scuba divers pass gas at 33 feet below?
Yes, they can pass gas at 33 feet below. why not?
No problem as long as the pressure released is greater than the pressure around you... Been there done that ...but make sure no snorkeller is catching the bubble with a funnel to stay down with you..hehehe
How deep can you dive without equipment on?
You should perform a safety stop for all recreational dives. It significantly reduces the risks of decompression sickness.
A safety stop is a 3 minute stop at 15 feet before ascending to the surface.
The recreational limits for diving are 60 feet for OW divers and 100 feet for AOW divers. If you go any deeper, you risk serious injury. The recreational limits have been designed with statistical safety in mind. Any "deep" dive (those below 60 feet) should have a safety stop.
Never, never, never dive just to set records or see just how far you can go. That way lies madness and fatalities.
Read "Diver Down", available at your public library or on Amazon:
http://www.amazon.com/Diver-Down-Michael-R-Ange/dp/0071445722
The Professional Association of Diving Instructors (PADI) is the largest diver training organization in the world.
How thick of wetsuit do you need?
This all depends on the way you are going to use the wetsuit.
The cooler the water you will be in, the thicker your wetsuit should be. However, with thickness comes a loss of mobility. If the water isn't too cold, and mobility is a major concern, a springsuit would be a good choice (shorter legs/sleeves). But if the water is frigid a fullsuit would be the better choice.
What do divers need to put on their feet?
Typically, divers use "booties" that are made of neoprene. That is the same material wetsuits are made of. They usually have rubber on the bottom of them so you don't slip around, but they are made to wear while wearing fins. You put the booties inside the fin for maximum comfort while diving. They're usually about 20-30 bucks at the dive shops and last about 5 years assuming you dive about 20 times a year.
How do scuba divers prevent decompression sickness?
Divers can lessen their chances of getting decompression sickness by minimizing pre and post-dive activity and exertion, do slow ascents (no faster than 30'/minute), stay well within no-stop time limits, and always do safety stops including deeper safety stops.
What is the treatment for nitrogen narcosis?
don't scuba dive in deep water. Stay above 80 ft. of depth.
Helium may be used as a substitute for nitrogen to dilute oxygen for deep water diving. It is colorless, odorless, tasteless, and chemically inert. However, it is more expensive than nitrogen and drains body heat from a diver.
Why do scuba divers need to exhale air when they ascend to the surface of the water?
Air in your lungs is compressed by the pressure of the water. As the pressure of the water goes down (as you go up) then the air will expand. If you allow it to expand while trapped in your body, you can damage your ears and lungs. ascending means starting from least and moving towards highest
How do you stop your scuba goggles from hurtting your forehead?
First, in American parlance, "goggles" refer to lenses that fit the eyes but don''t cover the nose. If this is the device you're talking about, you cannot use it for SCUBA. The nose has to be covered so that you can equalize air pressure in the mask with outside water pressure. Next, you shouldn't ever wear your mask on your forehead. If you're wearing it, it needs to be over your eyes or around your neck. Wearing a mask on your forehead is a great way to lose a mask -- annoying on the boat and dangerous in-water. FInally, if you mean your forehead hurts when you're wearing your mask on your eyes, it sounds like you have the strap too tight. Do this at HOME: 1. Loosen the strap so it doesn't hold the mask on at all. 2. Press the mask onto your face and inhale. If the mask sticks to your face for 10 or more seconds, great --- it fits. If it readily falls off, this mask doesn't fit you. Go get a mask that does fit (using steps 1 and 2 at the dive store), and start this procedure again. 3. If you're here, your mask fits. Now, tighten the strap a little, so that the least pressure possible to hold the mask on your face is what you're getting from tyhe strap. Then tighten it just a little more.
Most scuba tanks are filled with simple purified air.
However, some are filled with oxygen enriched air called 'nitrox' or (less commonly) a blend of helium, oxygen and nitrogen called 'trimix' or (even less commonly) helitrox or heliox.
Why are tides important to the fisherman and scuba diver?
Tide charts are used by many fisherman in different ways. Some prefer to fish between 2 hours before and 2 hours after high tide. Others prefer fishing low tides, but the majority prefer fishing a fast out-going tide. There is much more to tide fishing then high and low tides. Many other factors are involved. The time of year, the weather, location and the species of fish you are looking for to name a few. The best way to learn about fishing the tides is talking to your local fisherman and Charter Captains. The best time for me to fish is when I have the time! http://www.bradentoncharterfishing.com
At what age can you go scuba diving?
There is no upper age limit for getting certified for scuba diving. As long as your medical history does not prevent you from doing so. The lower age limit depends on the agency, but can be as young as 10-12