Mike S asked:


After a week of scuba diving in the Bahamas, my friend boards an airplane back to school. During his flight home, he developes aching joints, nausea, and dyspnea, which resolve upon landing. During the flight, the cabin pressure was equivalent to an altitude of 800 feet. Why did he have these problems?
Explain his problems.
There’s a typo. The cabin pressure was equivalent to an altitude of 8000 feet. Not 800.

Chris Chew asked:


Millions of vacationing tourists visit Hawaii every year. Most of them came to explore the beautiful Hawaiian Islands and volcanoes while some came with the intention to scuba dive in the tropical seas and to explore Hawaii’s magnificent underwater world. According to Rodale’s scuba diver magazine, Hawaii is one of the world’s top ten diving destination for scuba divers.

Hawaii’s marine life is very diverse so much so that there are more than a hundred endemic species found no where else on earth. You can explore Hawaii’s myriads of underwater caverns, reefs, drop off walls, canyons, gulleys and swim with turtles and seals in clear crystal waters. If you are not a scuba diver, you can take scuba diving lessons and then can plunge into Hawaii’s beautiful seas almost immediately.

If you want to go scuba diving, it is best to go in the morning as strong winds often rough up the sea in the afternoons. This is especially so on the island of Maui and that is the reason why dive operators often take divers out to sea early in the morning and terminate the dives around noon or early afternoons.

One of the big attractions in Hawaii is snorkeling. Almost anyone can go snorkeling since all you need is a face mask, a snorkel tube and a pair of swimming fins. If you have never snorkeled before, most resorts and dive operators can give you snorkelling lessons and rent you snorkeling gear. However, if you can swim, you really do not need any formal training as snorkeling is quite easy.

The most popular spot for snorkeling in Hawaii, especially for the beginner is the Hanauma Bay, on the island of Oahu. Other popular snorkeling sites in Hawaii are the Kee Beach on Kauai island, Hulopoe Bay in Lanai, Kahaluu Beach on the Big island and Kapalua Bay on Maui.

Although great snorkeling can be gotten at all the islands in Hawaii, snorkeling and scuba diving on the Big Island is recommended because of its volcanic activities and lava formation resulting from that. There are magnificent and spectacular drop offs with awesome underwater scenery to watch and admire. Some of the great snorkeling locations there are Molokini Crater and the Kealakekua Bay.

Whether you are snorkelling or scuba diving in Hawaii or anywhere else, always snorkel or dive with a buddy for safety reason and companion sake. Do look up now and then to check that you are not getting carried away by drift current too far away from shore and also to check for boat traffic. Do not touch anything as some corals and sea creatures in Hawaii can pack very painful and venomous stings.

pcook1 asked:

http://www.CADjunky.com

Underwater camera housings used in a number of major motion pictures designed in SolidWorks 3d CAD Software. Video has some great underwater film footage.

JMG asked:


A submerged scuba diver looks up toward the calm surface of a freshwater lake and notes that the Sun appears to be 21° from the vertical. The diver’s friend’s standing on the shore of the lake. At what angle above the horizon does the friend see the sun?

huge loser asked:


I’ve only been on a couple of dives and need a little help buying my first scuba kit.

I will be doing shallow dives at first (I think 60 feet or less is considered shallow, is it not?), before moving on to deeper dives. Will be primarily in cold fresh water lakes and in tropical oceans perhaps once or twice a year.

Money is not a big concern, would rather get a good kit now than have to re buy my equipment as I gain in experience and move on to deeper dives. Not sure whether or not a Nitrox kit is necessary or not, what would you recommend? What is required in upgrading a scuba kit to nitrox?

Also, when filling tanks for regular air mixtures, is it simply regular air (21%). Is a specialized compressor needed? Are they expensive? Can I simply buy a new compressor that will only be used for my breathing apparatus?

Thanks.

Any other tips you might think of will help. I am scheduled to take a PADI course soon, however they are far away and I am not able to stop in and talk.

littlemisspoppet asked:


I know its a weird question Im doing a story for English and there is a father that dies whilst scuba diving with his daughter. They are swimming around a shipwreck from the sixties.
I dont really know much about scuba diving so i was just wondering if anyone has any ideas of how he could die?

Thanks heaps = D
I’d like a sort of out there-ish death. Something thats not normal but griping and sad.

Johan Hedin asked:


Change
The urge for a change in direction seems sometimes to coincide with mid-life. The children are now grown up which releases us from our weary daily routines, awakening a longing to break out of the mould and dive into new challenges.
 
The sea
Have you ever thought how amazing the undersea world is? And what wonderful mysteries lie beneath our oceans? And if you are one of those who love scuba diving, can you pinpoint the reasons behind your love for the sea? Thailand, especially the southern waters around the regions of Phuket and Phi Phi offer some of the most scenic oceanic diving views you could possibly imagine. What a wonderful place to visit, where you can visit and develop your new skills in scuba diving ??
 
The experience
A lot of people first experienced the undersea world with Jacques-Yves Cousteau (1910-1997). He helped design the world’s first aqualungs in 1943. Through his TV series, he made it possible for millions to discover the world’s undersea mysteries. He lead us into new underwater habitats and introducing us to some of the many species of plants and wildlife living beneath our oceans. Through the Calypso, his crew and his eyes, he was able to share these amazing discoveries with us. Cousteau taught generations about the necessity to love, respect and protect the environment that lay below our seas. His pioneer documentaries paved the way for all that came after.
 
Like flying an aircraft, diving the oceans is one of humankind’s special gifts, and it’s one that we can all enjoy throughout our lives.
 
The instructor
If you already have a lot of experience in scuba diving and you hold qualifications such as a PADI Divemaster, PADI Assistant Instructor, or similar with another training organization, then you are already on the road to taking a PADI Instructor Development Course (IDC) and Instructor Examination (IE). Passing that will almost certainly take you to your desired profession, but if you don’t have any experience yet, don’t worry, your skills can be built up from a very beginner with Chris Owen’s Indepth PADI IDCs. Chris can help you achieve this and other goals.
 
The Professional Association of Diving Instructors or PADI formed in 1966 is the world’s largest recreational diving membership and training organization for divers and diving instructors. The PADI membership consists of PADI Instructors and PADI Divemasters and teaches most of the world’s recreational divers, in fact PADI currently certifies around 1,000,000 divers a year throughout the world.  PADI courses are proactive based dive programs that start from entry level programs like PADI Scuba Diver and Open Water Diver to PADI Open Water Scuba Instructor (OWSI), Master Scuba Diver Trainer (MSDT) and PADI IDC Staff  courses. 
 
Becoming a PADI diving instructor will take time, but with your effort and the correct training you can accomplish your goal. PADI IDC classes are suited for those who are not only determined but who are also not afraid of hard work, yet at the same time students can enjoy the experience of a life time with lots of fun and wonderful memorable moments.
 
With confined and open water training available, students can utilize accumulated knowledge and experience from professionals like PADI Course Director Chris Owen. Consider other advantages of signing with Chris such as monthly small classes of up to ten students, which allow team bonding and creates good team spirit making it that much easier to progress through the course. Class language is available in English, French, Dutch, German, Danish, Swedish or Thai, but language assistance for other nationalities is also available.  In regards to signing up with Chris, there is a 5% Early Bird Discount for those who signup early and another 5% Cash Incentive discount, a total of 10% discount off the whole package. The programs are so well structured; they aim to intensify training periods with equally long relaxation periods. He uses tried and proven method that really do help students improve that much faster.   

LTHDan asked:

Our children and grandchildren went scuba diving in Hawaii last summer..

Edward Nive asked:


As a SCUBA dive master, I am contemplating a move to the USVI. How do people get jobs working on the boats that bring out tourists snorkelling and scuba diving in the USVI? I’ve been on these trips before. Generally, its a catamaran type boat with a captain sailing the boat and two or three guys who help the people on the boat with drinks, entertainment, and then snorkelling/scuba diving. How do you get this job? Are these easy to come by?

mackie6111111 asked:

Let’s see how this camera works….