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Wool stays an insulator when wet, while cotton becomes far more conductive (to heat). Probably has to do with the way the fibers are laid in the fabric, which for cotton gives an easy direct conduction path through the water. Wool (with a minimum fiber density obviously) probably acts *more*...

I was there just a month ago and did quite a bit of snorkeling at two steps. No diving there though. Was quite nice. I'll also reiterate what another poster said. DO THE MANTA RAY DIVE. You'll bite yourself if you don't. Three pictures I took from the manta ray dive. I went with Jack's Diving...

I agree completely. When I rent, I normally end up with the farmer John, two piece stuff. In comparison to that, I find that the single-piece full body suit lets a lot less water through. My cold water wetsuit is a Whites 7 mil semi-dry (which is really just a wet suit the way it should be). It...

Thanks for the compliment. There isn't much on there right now, but hopefully it will grow. Since the site is a wiki, it will only grow as fast as people are ready to contribute to it. It would be nice if, say, the users of scubaboard went to www.wikiscuba.com/wiki and created an article for...

Well, finally the site is up. The wiki is at http://www.wikiscuba.com/ http://www.wikiscuba.org/ http://www.wikiscuba.net/ There isn't much there now, but if enough people are interested, this has the potential to become a very interesting website. There's an encyclopedia and a dive site...

I'm working on a website to make a world-wide database of dive sites. I know there are many of them around, but this one would be using the wikimedia software (the same software that's used for wikipedia). This means that the website is not only free, but anyone can modify it! So if you find a...

Tha A610 and A620 are essentially the same camera to the exception of the CCD sensor. As said before, the A610 has 2 MP less than the A620. If I'm not mistaken, the lens is the exact same one in both cases. Hence, you should expect the same behaviour camera, obviously to the exception of...