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From: "A.Appleyard" <A.APPLEYARD@fs*.mt*.um*.ac*.uk*>
To: techdiver@terra.net
Date: Fri, 6 Oct 1995 16:51:59 BST
Subject: why not automatic mixture rebreathers long ago? (PS)
  As to what could have been done in the old days with an automatic mixture
rebreather with no decompression meter facility: it could also be asked: "how
did people ever dive with aqualungs, in the old days before decompression
meters"? People used dive tables. With automatic mixture rebreathers available
and no dive computer yet invented or even thought of: some body or club would
have provided special decompression tables, and automatic mixture rebreathers
would have been very useful, if only the #@$% Navy's frogman department hadn't
hoarded the design secret like it was an atom bomb. Modern divers have got so
computer dependent that it seems to need a hard mental wrench to think of life
without dive computers. I started diving in 1965, and I remember over 20 years
without dive computers, and even a time when divers' inflatable lifejackets
were unheard of, and when all aqualung divers used regulators with wide hoses
like in old pictures of Cousteau and Hans Hass. I started diving only a bit
too late to see the time when British divers made their own regulators!

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