[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [PSUBS-MAILIST] test of CO2 safety hardware - any volunteers?
If tested well, and found to work, this could serve as
a backup unit to a commercial device, or even just as
a novelty, but I agree in should be looked into. My 2
cents.
Dewey
--- Pierre Poulin <pipo305@hotmail.com> wrote:
> Erik,
>
> I will try it. I just need some time. I will try it
> mainly for curiousity
> and discution. I think that's all this group is all
> about! To get new things
> developed and discussed.
>
> Pierre Poulin
>
>
>
> >From: Erik Muller <emuller@naic.edu>
> >Reply-To: personal_submersibles@psubs.org
> >To: personal_submersibles@psubs.org
> >Subject: Re: [PSUBS-MAILIST] test of CO2 safety
> hardware - any volunteers?
> >Date: Wed, 18 Feb 2004 12:23:52 -0400
> >
> >Gail,
> >Many of the points you made are true. Let me
> address them one at a time:
> >
> > >I'm wondering how accurate and useful a device
> like the one you describe
> >would be.
> >Indeed, as am I. This is why I am calling for
> people with air-tight hulls
> >to test the system. I am not suggesting that it be
> implemented on anyones
> >machine before testing its efficiency and it is
> developed.
> >
> > >With reliable professionally-made devices being
> available, why would you
> >want to entrust something as important as life
> support to a $0.50
> >expedient?
> >That is true: you need to fold in the reliability
> of your equipment is to
> >the decisions you make in piloting and using your
> craft. However, to take
> >this question to the (unreasonable) extreme: why
> would you build your own
> >submarine when you can buy a perfectly operational
> one, brand-new for a few
> >hundred thousand or million? The fun is in the
> manufacture and learning how
> >it all works. However, care needs to be taken when
> using new systems in
> >that they are tested properly. Perhaps the 50c
> device works well enough as
> >a first order indicator. I dont know. I think it is
> worth finding out. I DO
> >know that it tests positive for a single breath,
> which has more that enough
> >oxygen remaining in it to be comfortable. If
> anything, I think this will be
> >an overly-conservative indicator. I can cite the
> age-old 'NASA vs USSR -
> >high tech gravity-proof-pen vs ordinary pencil'
> example as a great case
> >where cheaper is better. This might turn out to be
> one such case.
> >
> > >From what I've learned, CO2 levels are taken care
> of by the scrubber, and
> >it's pretty easy to verify whether or not that's
> working. So this home
> >made CO2 sensing device doesn't sound necessary.
> >
> >Sure, but some people dont have a scrubber in your
> machine. Others have
> >different systems to help reduce CO2 pp. Scrubbers
> are not part of
> >everyones hardware. I have not planned for one
> since my dives will be
> >short.
> >
> > >Speaking for myself, I think I'd prefer the
> professional instrument.
> >Thats fine. Then this system is not for you. Some
> people dont have the
> >money, or want to try to make it all from the
> ground up (i.e. some people
> >like to grow their own for the fun of it). Im not
> insisting that this
> >system be immediatly implemented by all. Just that
> it is a system that
> >MIGHT be useful to SOME people, and is worth
> testing. Nothing more. If
> >tests show that it is unusable, then we have
> learned something. If tests
> >show that it IS useable, then we have also learned
> something. Its a win-win
> >world in this case.
> >
> >There is a commercial in australia which says: 'you
> will never know if you
> >never go'. If its not tested, we will never know if
> it is useable, or not.
> >People have been objecting to my suggested
> technique for about a week, yet
> >no-one has tested it. I would really prefer that
> people object with numbers
> >or solid data, rather than opinions. The proof is
> in the pudding. We grow
> >by testing and learning. <insert other assorted
> feel-good anthropic cliches
> >here>.
> >
> >Anyhow. thats enough from me.
> >EM.
> >
> >
>
>
_________________________________________________________________
> MSN Search, le moteur de recherche qui pense comme
> vous !
> http://fr.ca.search.msn.com/
>
__________________________________
Do you Yahoo!?
Yahoo! Mail SpamGuard - Read only the mail you want.
http://antispam.yahoo.com/tools