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Brazil does extradite to the United States. See: https://2009-.state.gov/documents/organization/71600.pdf

A few years ago, I was doing a wreck dive with a buddy. We were both AOW and had a little less than 50 dives each. It was a shore dive, involving a little surface swim to the float marking the wreck, which was sitting on sand about 30m deep. We were in a hurry and did not do buddy checks. When...

He was not very receptive to listening from me.

I've posted here on Scubaboard before that once, when I was preparing for a cave dive, I tested my tanks for CO and the device indicated 18ppm CO. As most people there that day had filled their tanks at the same place (the only dive shop within 100km), I thought I should alert other divers...

I on a different region (South America) than most here and I am getting these ads too.

I don’t see a problem with that dive count. As others said above, skill and dive count do not progress equally. Good instruction, dedication to developing one’s skills and variety of environment experienced contribute much more to becoming a better diver than just doing the same simple dive many...

I am in agreement with @cathal above as not seeing the point in getting too attached to the carbon monoxide theory. The empty tanks are too thin a link to CO as a cause of death to warrant, at this point, a long discussion of the danger of this gas in this thread. By the way, I know of at least...

I’m not sure I see the point in this Florida / Mexico argument, in the context of the accident being discussed. Does anyone have any reason to believe the victim belonged to a group that promoted a culture of unsafe diving practices? Or that the victim had received inadequate training, in...

Very sad news. Like others above, I did not know him personally, but found his posts to be thoughtful and helpful and valued his contribution to the diving community through this board. Is this him? Steve Campbell, Distinguished Professor Emeritus, 1945-2021 | Department of Mathematics | NC...

I’ve been passively following this thread so far but decided to chime in to say the following: one thing I love about Scubaboard is that it is a place I can come to and talk about or read about a subject that I love and not have to think about politics.

There are a few things a scuba class gives you. The first is the theoretical knowledge on basic physiology, the aquatic environment, scuba gear and a few other topics. A good book can teach those. You can watch videos showcasing techniques on equalisation, buoyancy control or kicks. You cannot...

I can relate to your troubles. When I started on my path to learning to cave dive, I had the same difficulty in trying to find a good instructor. I found recommendations on instructors not to be always reliable. Besides, I had trouble gauging how good the instructor would be without traveling to...

I would guess that, even though the first news piece reports a diver being trapped, it was a case of a team member getting separated and lost, and not that there was a sudden blockage of a tunnel. The “trapped” part should refer to the cave itself. Note that the second reporting talks about a...

First of all, welcome to diving! I hope any medical issues you may have are resolved and that your training go well. Can I ask about the result of your appointment with your doctor? What did he or she say about your apparent loss of consciousness? Did you do any test or consult with a different...

For me, the fundamentals class was not particularly exhaustive. I think one of the reasons must be that I had the lectures, the written exam and a few of the land drills prior to beginning the in water section of the course.

I think that people's reaction to diving doubles can vary substantially. In my case, I first tried diving doubles in a pool, as the focus of a practice session in preparation for taking intro to cave. I started like you described, often rolling into my back. After this practice, I was feeling...

First of all, I want to say that your idea of taking the Fundamentals course is a great one. Even if you decide to later take classes out of the GUE path, you will have an excellent foundation on which to build your skills. Whether to take the course on doubles or not is difficult to say. It...

Sure, teaching that is useful. But it does not require creating a name for the phenomenon that is not shared by the scientific community or the rest of the diving community.

Are you asking me? I think that we don't need a name to every single difference in perception that occurs underwater. There are several differences, some of which have been object of previous questions on this series (loss of red color and difficulty determining the direction of a sound source...

I had never heard of "visual reversal" before seeing this thread. After googling the meaning, I am left unconvinced that there is any value in using this expression, as it does not seem to be widely used and does not clearly convey its meaning. I thank @Pedro Burrito , though, for once again...