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After taking a look at the titanic watch thread it appears we may have some diveres amoungst us. I thought I'd make a topic on diving, just so people can discsuss the topic.
I am in the process of leaning to dive, I intend to reach dive master or dive instructor, although currently I am far from it.
So who else enjoys a bit of scuba diving?
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[ This Message was edited by: Luke-the-magic-man on 2007-07-08 01:19 ]
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Posted: 2007-04-15 20:19:13
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well, I guess you know I dive
I'm currently a PADI advanced open water diver with around 120 dives logged including many at night. I plan to do the rescue diver course next and then divemaster.
The deepest I've been is 38m which is actually quite scary when you think that a safe ascent rate is 18 metres per minute so you are 2 minutes from the surface! Also you suck air at a tremendous rate at that depth since you're experiencing nearly 4 atmospheres of pressure. I remember doing my first deep dive in the advanced course to 34m. the instructor took a raw egg and literally peeled the shell leaving the insides intact in their egg shape due to the water pressure. then some fish came along and pecked at it destroying it!
I prefer diving on wrecks as they are much more interesting than fish or corals.
the scariest experience was in the sea when we had to take our masks off and then put them back on again and clear the water by blowing through the nose to force the water out
its great fun but needs to be treated as a serious business and you always have to remember to breathe out as you ascend and your lungs expand as the pressure reduces
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i-mate V800 K700[ This Message was edited by: masseur on 2007-04-15 21:31 ]
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Posted: 2007-04-15 20:32:01
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Yep its why i started this thread, I never really thought about it allot till I saw the titanic thread.
I have never heard of the egg thing you mention, but it doesnt surprise me, when going down to the deeper debths it always surprises me how much you seem to shrink because of the pressure around you.
I think wrecks are allot more interesting, but sometimes its nice to go to clear waters and see the corals and fish, saying that I think its very important that you respect the enviroment down there.
I recon one of the hardest things is to just keep breating and keep calm. One time when I was at a shollow debth around 2-4m I was floating allong the bottom when i was caught by a current, it flipped me over to my back. As im sure your aware the tank is quite heavy and if it goes below you unexpectedly in the ocean it can drag you down a bit making it harder to recover as your just tossed with the current. During that little experience I found it hard to control the breating as my natural instince would be to recover my orientation asap, but this would have been the wrong thing to do....
Hopefully in the summer I will be working for a diving center helping out the instructors and help run things in general. Asuming this goes to plan I will be working and traing for 7 days a week for almost a month. I can't wait as it means I should be getting a ton of diving experience.
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Posted: 2007-04-15 20:49:08
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it takes a while to get the bouyancy right between the weights you use and the inflation of your bcd jacket but its something that needs to be mastered quickly otherwise you spend alot of time trying to stay at your chosen depth and that takes energy and that increases your breathing which therefore reduces your dive time
I did some diving in Stockholm once in the cold of winter but used a dry suit. They are great but you still freeze your butt off getting changed! I definitly prefer diving in warmer waters and have done quite a bit around Sydney and the Barrier Reef.
anyway... good luck with that!
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Posted: 2007-04-15 20:56:32
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wish i could see a video of that egg!
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Posted: 2007-04-15 22:30:23
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mybe bit off topic, but probabaly all of u saw the great movie "the abyss". theoratically, is it possible to dive on that way, when they filled the divesuit with that liquid thingy? it really amazd me, cos i love jaques cousteu, got the whole encyclopedy of him and wanted to be diver too for a short while, when i was small.
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Posted: 2007-04-16 15:05:53
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I think the theory of liquid breathing is that the pressure of fluids can prevent the lungs benig collapsed under the great pressures at depth, and though I don't think its been tested on humans, it has certainly be tested on mice
as always,
wiki has an interesting read on this topic
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Posted: 2007-04-16 15:18:41
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I remember when windsurfing became hip, they had their "motto" on car stickers etc - "windsurfers do it standing up" ... what about you scubas? "Divers do it breathing heavily"??? Do tell!
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Posted: 2007-04-16 19:07:08
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the best bumper sticker i've seen read, "it used to be that sex was safe and scuba diving was dangerous"
the deepest i've gone so far was a bit over 50m. yes, it was past the recreational diving limit, but i rarely do it and only because of special circumstances. in that case, we were trying to get a good look at a bunch of sharks.
@luke
the best advice i can give you is to always try to keep your breathing as slow and calm as possible. there are a lot of benefits to this. first, slow and deep breathing, almost like in meditation practices, makes your body use the oxygen much more efficiently and you actually end up with lower air consumption in the process.
more importantly, heavy breathing at much lower depths sometimes can get you narced, which, believe me, is not always a pleasant experience, especially when you combine lower depths with strong currents.
most of the times i have gotten narced happened when i was at about 30m or so and swimming against a medium to strong current. the effort of swimming against the current makes you breathe heavily. this sometimes leads to hyper-ventilation and eventually nitrogen narcosis. remember, at 30m, one breath equals 4 breaths at the surface due to the compression, so you are taking in way more air than you need to if you hyper-ventilate.
the first time it happened to me, it was kind of freaky. it makes you lose your bearings and for some people, it makes them do really crazy things which can put themselves at risk. if ever it does happen to you, the first order of business is to be aware of what is occuring and always stay calm. then, make a conscious effort to really slow down your breathing. after a couple of minutes, all will be well again and you can enjoy the rest of your dive!
i often compare diving to flying. there are very strict rules which should be treated with great respect for obvious reasons. but if you do so, then as the sticker says, it can be safer than sex!
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Posted: 2007-04-17 02:08:29
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Bit of a blast from the past.
Top points to the mods and the re-designed search engine on esato, works a treat!
Back on topic.
I am now out in spain doing my dive training till early august, so far everything is going well. Had a few exams and am scoring top marks and my instructors think I am a promising student ec.
I am after a bit of advice which some of you guys my know.
I am looking for a few sites/clubs as followed:
A GOOD dive club based in the cheltenham/gloucester aera which can offer advanced training in both pool and open waters and takes trips to the coast and abroad regually.
A website to get detailed infomation on the sea and weather in aeras in the UK and abroad.
Anywhere where you can buy and trade scuba equipment other then clubs.
Any good scuba diving sites whcih can offer infomation on diving etc, preferably with a forum like esato.
thanks
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Posted: 2007-07-08 02:27:52
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