Mailing List Archive

Mailing List: techdiver

Message Display

Hans, I might be a little slow, and I don't know
much about rebreathers, *( although I do hold the
fucking worlds record in a cave on one, and have a
few hundred hours on them), but explain to me how
buying a 5-20 thousand dollar piece of gear that is
totally unnecessary for any dive you certainly have
ever done or will do, and which invokes a series of
risk factors so far beyond any other form of
equipment as to be ludicrous, is a better idea than
diving the right gas in the first place for a few
hundred bucks?. Hans, what am I missing here -
please set me straight, and skip the White Rabbit
part.


-----Original Message-----
From: Hans Petter Roverud <proverud@on*.no*>
To: haglandg@to*.co*
<haglandg@to*.co*>
Cc: Techdiver <techdiver@aquanaut.com>
Date: Saturday, September 30, 2000 7:48 AM
Subject: RE: clarification was: An the beat goes on
and on


>At 10:29 PM 9/28/00 +0900, Gary Hagland wrote:
>
>> From someone who lives outside the U.S., the
problems with He are that its
>>expensive and the U.S. controls the world's
supply.  Why did the Germans use
>>hydrogen in the Hindenburg?
>
>Helium was hardly available in those days for any
of us. Also, hydrogen is
>cheap and has the lowest density so it seemed like
a good idea at the time.
>
>>   Why are the French experimenting with hydrogen
>>for use in breathing mixes?
>
>To off-set HPNS and to lower the density of the
breathing medium -- even
>helium turns soupy at 300m/1000' +
>
>>Although we Americans think of ourselves as the
>>most wonderful people on the planet, some folks
don't want to rely on us.
>>One storage bottle of He outside the U.S. is $200
or more.  That's what it
>>costs here in Japan and that's what I've been told
it costs in France and
>>other European countries.
>
>The price is correct, but most helium in Europe
comes from Algeria in north
>Africa. The US has the world's best supply of
helium since there's
>atypically high amounts of helium in your gas
reservoirs.
>
>Now, for diving in remote areas: Here's a splendid
case for considering CCR
>or SCC -- if you ship in an expensive bottle of
helium you'd really want to
>get a good mileage.
>
>regards,
>
>Hans
>
>
>
>--
>Send mail for the `techdiver' mailing list to
`techdiver@aquanaut.com'.
>Send subscribe/unsubscribe requests to
`techdiver-request@aquanaut.com'.
>

--
Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'.
Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.

Navigate by Author: [Previous] [Next] [Author Search Index]
Navigate by Subject: [Previous] [Next] [Subject Search Index]

[Send Reply] [Send Message with New Topic]

[Search Selection] [Mailing List Home] [Home]