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Re: [PSUBS-MAILIST] Underwater tent...
Hmmm, you've been on that island too long.
--Steve
On Mon, 19 Apr 2004 13:51:33 -0400 Erik Muller <emuller@naic.edu> writes:
> Warren, A word of advice if I may:
> Just be patient while you build it, and dont get frustrated or angry
> while you are testing it.
> There is nothing worse than having to cope with malicious intents.
>
> EM.
> Spokesperson for:
> Contrived and Rude Acronyms and Puns.
>
> Warren Greenway wrote:
>
> >Yeah, I cracked a smile! Thanks for sharing that! I
> >think that my first "manned tent" will be similar in
> >dimensions.
> >
> >Warren.
> >
> >--- Steven Mills <cirtemoeg@juno.com> wrote:
> >
> >
> >>Wow, we're talking a long time ago, but here goes.
> >>
> >>First, I'm assuming that the setting and morphology
> >>of the pond
> >>aren't significant.
> >>Suffice it to say, , the only problems I encountered
> >>were in the
> >>construction,
> >>the materials available to me, and my own
> >>inexperience and not so
> >>much the dynamics of the pond.
> >>
> >>My tools were pipe benders, hacksaw, pipe threaders,
> >>and the ol'
> >>Sears craftman's tool set [ the old "good" tool set
> >>of a time passed ].
> >>The materials were ; conduit and plumbing fittings,
> >> construction
> >>grade clear visaquene plastic, pitch for sealant,
> >>rope, string, small
> >>canvas bags used with sand and gravel for weight and
> >>trim, and
> >>homemade pinch clamps to hold plastic to frame at
> >>various points
> >>to keep it in place [ without damaging or poking
> >>holes in the plastic.]
> >>Basically, the stock came from a loose assortment of
> >>parts from
> >>my granddad's barn. The base frame was sized and
> >>cut from
> >>stock galvinized 1inch diam. conduit, the top frame
> >>was sized and
> >>cut from half inch galvinized stock. I rammed and
> >>packed the pipe for
> >>the base with sand using rebar and pieces of burlap
> >>wadding.
> >>The top frame was left hollow. I made four tents
> >>the last being
> >>successful at 4feet by 6feet base at 3feet in
> >>height. 3 half round
> >>frame members with a longitudinal supporting member
> >>and vertical
> >>supports at each end. Despite its weight it was
> >>slightly positive
> >>bouyant. So, I added sand filled canvas bags lashed
> >>to the bottom
> >>frame. When I needed to replenish the air or take it
> >>to surface I simply
> >>unlashed the bags and it would rise slowly with a
> >>little help.
> >>It was crude and it did leak, but there was always a
> >>good size pocket
> >>of air to enable me to explore a short distance and
> >>return for air.
> >>I would say it gave me about 20 minutes under before
> >>I had to surface.
> >>I could sit in it, but the plastic would fog up a
> >>lot, but a splash of
> >>water
> >>cleared it up. Visaquene is hygroscopic so it would
> >>opaque and degrade
> >>out of water while being stored. It was fun while it
> >>lasted. It was
> >>destroyed
> >>when my cousins and a few neighbor kids thought it
> >>would be fun
> >>playing 'depth charge' with large rocks [ and with
> >>me in it ! ]
> >>
> >>Well, did that help?... or at least crack a smile?
> >>
> >>Shallow, tidal, and near shore dynamics is a
> >>different story compared
> >>to a pond. You've got your work cut out for you
> >>that's for sure.
> >>
> >>cheers, --Steve
> >>
> >>
> >>On Sun, 18 Apr 2004 21:34:22 -0700 (PDT) Warren
> >>Greenway
> >><opensourcesub@yahoo.com> writes:
> >>
> >>
> >>>That is similar to the proposal by Michael Savage
> >>>in his book Millenial Project. So, what I want to
> >>>
> >>>
> >>know
> >>
> >>
> >>>is this: How large was your electrical conduit
> >>>underwater tent? I'm still very interested in
> >>>collecting data on swell-induced pressure
> >>>
> >>>
> >>variations
> >>
> >>
> >>>in such a habitat.
> >>>
> >>>Warren.
> >>>
> >>>--- Steven Mills <cirtemoeg@juno.com> wrote:
> >>>
> >>>
> >>>>...and, if you feel real ambitious or want to
> >>>>
> >>>>
> >>add a
> >>
> >>
> >>>>split-level
> >>>>to that underwater tent, may I suggest this :
> >>>>
> >>>>http://fun.supereva.it/artificialisle/index.html
> >>>>
> >>>>
> >>>>Or, perhaps we should all chip in and build a
> >>>>
> >>>>
> >>pSubs
> >>
> >>
> >>>>headquarters
> >>>>and convention center ?
> >>>>
> >>>>:- ) --Steve
> >>>>
> >>>>
> >>>>On Sun, 18 Apr 2004 09:37:53 -0700 (PDT) Warren
> >>>>Greenway
> >>>><opensourcesub@yahoo.com> writes:
> >>>>
> >>>>
> >>>>>Cool! Thanks! One thing about that link that
> >>>>>
> >>>>>
> >>is
> >>
> >>
> >>>>>interesting is that they are measuring PAR. I
> >>>>>
> >>>>>
> >>told
> >>
> >>
> >>>>the
> >>>>
> >>>>
> >>>>>company I was working for that underwater PAR
> >>>>>measurments would become important in the near
> >>>>>
> >>>>>
> >>>>future.
> >>>>
> >>>>
> >>>>>They laughed. Hmmm. I designed a PAR
> >>>>>
> >>>>>
> >>instrument
> >>
> >>
> >>>>once
> >>>>
> >>>>
> >>>>>before!
> >>>>>
> >>>>>Warren.
> >>>>>
> >>>>>--- Steven Mills <cirtemoeg@juno.com> wrote:
> >>>>>
> >>>>>
> >>>>>>This isn't exactly a tent for habitation or
> >>>>>>saturation diving. But it is
> >>>>>>similar to something I built as a 14 year
> >>>>>>
> >>>>>>
> >>old
> >>
> >>
> >>>>kid
> >>>>
> >>>>
> >>>>>>quite by accident.
> >>>>>>I'll forgo the story behind it, but I ended
> >>>>>>
> >>>>>>
> >>up
> >>
> >>
> >>>>>>building a small quonset
> >>>>>>style tent using electrical conduit pipe for
> >>>>>>
> >>>>>>
> >>a
> >>
> >>
> >>>>frame
> >>>>
> >>>>
> >>>>>>[ that's all I had
> >>>>>>available to me ] the bottom part of the
> >>>>>>
> >>>>>>
> >>pipe
> >>
> >>
> >>>>frame
> >>>>
> >>>>
> >>>>>>packed with sand.
> >>>>>>It wasn't elaborate or incorporate any
> >>>>>>
> >>>>>>
> >>venting,
> >>
> >>
> >>>>but
> >>>>
> >>>>
> >>>>>>was great on a
> >>>>>>hot summers day and watching blue gill and
> >>>>>>
> >>>>>>
> >>bass
> >>
> >>
> >>>>[ or
> >>>>
> >>>>
> >>>>>>were they
> >>>>>>watching me : ) ] It was in a pond about
> >>>>>>
> >>>>>>
> >>15
> >>
> >>
> >>>>feet
> >>>>
> >>>>
> >>>>>>under.
> >>>>>>
> >>>>>>--Steve
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>>
> >http://sofia.usgs.gov/publications/ofr/00-361/sharq.html
> >
> >
> >>>>>>On Sat, 17 Apr 2004 15:16:18 -0700 (PDT)
> >>>>>>
> >>>>>>
> >>Warren
> >>
> >>
> >>>>>>Greenway
> >>>>>><opensourcesub@yahoo.com> writes:
> >>>>>>
> >>>>>>
> >>>>>>>Yeah, I was thinking of something
> >>>>>>>
> >>>>>>>
> >>>>similar...But
> >>>>
> >>>>
> >>>>>>here's
> >>>>>>
> >>>>>>
> >>>>>>>the catch. Make your panels out of the
> >>>>>>>
> >>>>>>>
> >>fiber
> >>
> >>
> >>>>>>>reinforced
> >>>>>>>recycled tire material and use belting and
> >>>>>>>
> >>>>>>>
> >>>>>>adhesive
> >>>>>>
> >>>>>>
> >>>>>>>to hold the pieces together. I like the
> >>>>>>>
> >>>>>>>
> >>>>concrete
> >>>>
> >>>>
> >>>>>>>approach, but I wonder how you would
> >>>>>>>
> >>>>>>>
> >>assemble
> >>
> >>
> >>>>it?
> >>>>
> >>>>
> >>>>>>>Would you pour the sections on a barge and
> >>>>>>>
> >>>>>>>
> >>>>lower
> >>>>
> >>>>
> >>>>>>them
> >>>>>>
> >>>>>>
> >>>>>>>into place over a temporary structure? I
> >>>>>>>
> >>>>>>>
> >>have
> >>
> >>
> >>>>>>wondered
> >>>>>>
> >>>>>>
> >>>>>>>about building on the bottom, but it seems
> >>>>>>>
> >>>>>>>
> >>>>that
> >>>>
> >>>>
> >>>>>>the
> >>>>>>
> >>>>>>
> >>>>>>>uncertain and silty nature of the bottom
> >>>>>>>
> >>>>>>>
> >>would
> >>
> >>
> >>>>>>make
> >>>>>>
> >>>>>>
> >>>>>>>it more desirable to float on a
> >>>>>>>
> >>>>>>>
> >>tether...Hmmm.
> >>
> >>
> >=== message truncated ===
> >
> >
> >
> >
> >
> >__________________________________
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> >
> >
> >
> >
>
>
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