In article <9409191048.AA11766@memexis.memex.com>, Jonathan Adams <jonathan@memex.com> wrote:
- the rule of thumb is that 30 feet of water get you an atmosphere. So you're at 102 you're at just under 4.5, so you're using air at the rate of 4.5 times the rate you do on the surface.
It's 1 atmosphere for every 33 feet, but either way, I don't see how you managed to get 4.5 * the rate. At around 3 atmospheres, you're using air at about 4 times the 1 atmosphere rate.
That's because you didn't add the 1 atmosphere you've already got above the water to your pressure count, while I did. We clearly meant the same thing, since we both got ~4 times the rate.
Hmmm. I believe that the diving depth-to-time tables (which I don't have in front of me. I'll get them out and double check later) give a time of around 25 minutes. It has nothing to do with how much air you have. The tables are used to avoid the bends and nitrogen narcosis.
I've been assuming that it wouldn't be a problem for the H.E.A.T. folks to ascend slowly. Wouldn't this avoid decompression sickness? Again, it's been a really long time -- moving from Florida to Pittsburgh and then NYC will do that. -- L. Todd Masco | "A man would simply have to be as mad as a hatter, to try and cactus@bb.com | change the world with a plastic platter." - Todd Rundgren