Dude:

Two things.  First of all, your CC list included the following:

Cc: John Grogan <john@ro*.co*.uk*>,
    Kevin Pickering <kevpix@gl*.co*.uk*>,
    Techdiver <techdiver@aquanaut.com>, heyydude@pi*.co*,
    rebreather@nw*.co*, William@bi*.bi*.ha*.or*,
    M.@bi*.bi*.ha*.or*, Smithers@bishop.bishop.hawaii.org,
    will@tr*.co*, Bruce@bi*.bi*.ha*.or*,
    J.@bi*.bi*.ha*.or*, Belschner@bishop.bishop.hawaii.org,
    B2@cs*.co*, Greg@bi*.bi*.ha*.or*,
    Zambeck@bi*.bi*.ha*.or*, gzambeck@us*.ne*,
    pH@bi*.bi*.ha*.or*, heseltine@ea*.ne*,
    Tim@bi*.bi*.ha*.or*, Olson@bi*.bi*.ha*.or*,
    underh2o@ma*.ex*.co*, Kevin@bi*.bi*.ha*.or*,
    Pickering@bi*.bi*.ha*.or*, scatsta@mc*.co*,
    Martin@bi*.bi*.ha*.or*, Parker@bi*.bi*.ha*.or*,
    mjp@ap*.av*.co*.uk*, Brown@bi*.bi*.ha*.or*,
    Christopher@bi*.bi*.ha*.or*, techvid@ne*.co*,
    Jeremy@bi*.bi*.ha*.or*, Downs@bi*.bi*.ha*.or*,
    dcrco@jp*.ne*, Tom@bi*.bi*.ha*.or*,
    Mount@bi*.bi*.ha*.or*, TOM.MOUNT@wo*.at*.ne*,
    cavers@ca*.co*, techdiver@aquanaut.com, RMC@bi*.bi*.ha*.or*,
    halcyon@ha*.ne*


....most of which are nonexistant Bishop Museum address.  WTF?

Second,

> Richie, you are right - they are blaming the training agency. 

What am I right about, and who is blaming the training agency, and for what? 
So far, all the rebreather deaths I've seen appear to relate to unqualified
divers, with the exception of the PNG guy, who was qualified but complacent
on the filling.  Now, whether you would put the blame on the training agency
for the diver not being adequately qualified (as many want to do), or put the
blame on the student for not being qualified (as my preference would be), is
a subject worthy of discussion. 

Rich

> 
> 
> Richard Pyle wrote:
> > 
> > > Yes, but an electronic RB is the perfect killing machine.  If OC
> > > fails, then
> > > it just won't give you gas.
> > 
> > That seems like a "perfect killing machine" for a person underwater - having
> > no gas.  If you run out of gas on a rebreather, you have like 30-45 minutes
> > to solve the problem. But, I understand your point - which is a point I've
> > made for years:  OC failures tend to be self-evident, whereas:
> > 
> > > There are many more insidious ways
> > > you can die
> > > with an electronic RB.
> > 
> > Actually, there are really two insideous ways you can die with an electronic
> > RB:  hypoxia, and hyperoxia.  Hyperoxia is arguably even more insideous with
> > open-circuit nitrox than with electronic RB's (albiet perhaps easier to
> > avoid, because you need to check the mixture only once), because the OC
> > nitrox has no real-time sensors that can warn you of the wrong mix.  The
> > window of life-sustaining PO2 ranges from about 0.15 to 1.5 (actually, it's
> > hard to draw a line at the high end, because that number is so incredibly
> > variable - so I'm being very conservative) - a factor of ten.  Physics
> > requires that SOMETHING has to happen for the PO2 to move up and down this
> > scale (dpeth change, gass addition, O2 consumption by the diver). The
> > training comes into play for allowing a diver to understand what factors
> > cause the PO2 to move up and down this scale, and therefore indirectly
> > recognize when the PO2 may be changing in its range - with or without
> > working sensors.
> > 
> > Aloha,
> > Rich
> 
> 
> 

Richard Pyle
Ichthyology, Bishop Museum                deepreef@bi*.bi*.ha*.or*
1525 Bernice St.                          PH: (808) 848-4115
Honolulu, HI 96817-2704                   FAX: (808) 841-8968
       "The views are those of the sender and not of Bishop Museum"


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