From: Patrick Salsbury (salsbury_at_sculptors.com)
Date: 10/04/98
Message-Id: <3.0.3.32.19981004214330.00747014@mailhost.sculptors.com> Date: Sun, 04 Oct 1998 21:43:30 -0700 From: Patrick Salsbury <salsbury_at_sculptors.com> Subject: Re: cost of materials
At 08:53 PM 9/26/98 -0700, you wrote:
>We have the most abundantly cheap and available heavy lifting cranes in
>existence! AIR. big bags of air could allow one handed holding of quite a
>few things. Underwater cranes are going to be a marketable item in the
>future, believe it. We could pioneer the technology and spinoff, or just
>fill big bags of air to hold sections of the superstructure. Fasteners
>should be kept to a minimum, and U/W time (underwater) should be utilized
>for maximum efficiency, however the ball-in-sockets sound terrific.
>Welding is not a joy underwater, and if it is relatively simple, we could
>sell to the adventure tourist market a way to volunteer time and cash for
>the priveledge of working on this thing.
>
Yes, holding the large structures underwater with airbags would be a
good way of floating them up near the end of the process. I was thinking of
this as one way of working in the shallows, where you construct on the
bottom, then float them up to attach at the end.
Also, having some sort of large plastic "parachute" that is held just
above the electrodepositing hull will allow us to catch the millions of tiny
H2 and O2 bubbles that will be coming off the framework as the
electrodeposition takes place. This can be funneled up to the surface, and
fed into fuel cells, to provide power for the city, as well as power for
more electrodeposition!
Pat
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