-> -=> Quoting Michael Chua to Don Boudreau <=-
->
-> DB> Here is a real beginners question. I have looked in my diving han
-> DB> but it doesn't give me the  answer anywhere. How does someone tel
-> DB> fast they are going up?  Someone told me never to pass my smalles
-> DB> bubbles. Is that a good rule of thumb?
->
-> MC> That's what I was taught, I think it's a good rule, anyway, if yo
-> MC> ascending too fast, your lungs will tell you =) by creating this
-> MC> sensation akin to a vise slowly squeezing your chest.
->
-> I think that it is time to back up and look at some of the scary
-> (mis)information that is being given here. The following the
-> bubble trick is NOT an accurate way to determine your ascent
-> rate. It should not be the rule.
->
-> As for the "vice slowly squeezing your chest", this is a good way
-> to end up DEAD. By the time you feel the overpressure in your
-> chest, you probably have suffered internal damage to lung tissue.
->
-> The RULE is somewhat variable, but it is mostly agreed that
-> 30'/min is the accepted ascent rate, and watching a guage (of
-> some sort) is the way to attain this rate. Your ascent is part of
-> your decompression, and you can suffer from DCS problems from
-> ascending too fast as well as having expansion injuries.
->
-> Mike Nelson followed the bubble rule, but he was TOUGH! 
-> We wimpy recreational diver wimps would rather "Live long and
-> prosper".
->
-> ... Clinton - The dawn of a new error!
-> ___ Blue Wave/QWK v2.10
->
-> --- Maximus/2 3.00
->   I have one small qustion Iwas taught that you should continuasly breath 
on asent I just read two postings up that you should always be breathing 
out.just woundering
  thanks
--- InterEcho 1.12
---------------