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- Newsgroups: sci.space
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!rpi!newsserver.pixel.kodak.com!ekcolor!dj
- From: dj@ekcolor.ssd.kodak.com (Dave Jones)
- Subject: Re: Biosphere 2 update
- Message-ID: <1992Dec22.165853.6346@pixel.kodak.com>
- Sender: news@pixel.kodak.com
- Organization: Vonnegut Tent Rentals, Inc.
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- References: <Bzo4s4.HpH@cs.columbia.edu>
- Distribution: sci
- Date: Tue, 22 Dec 92 16:58:53 GMT
- Lines: 31
-
- Nathaniel Polish (polish@cs.columbia.edu) wrote:
- > I realize that there has been much debate concerning the seriousness of the
- > science of Biosphere 2. However the problems posed are still fascinating.
- > If indeed this is to be viewed as a prototype space colony then I have a
- > problem with the review just posted from a crewmember.
- >
- The problem seems to be in seeing it as an all-or-nothing proposition. It
- isn't. It's a test bed to explore the problems of maintaining a closed
- ecosystem. That's why several ecosystem models are present in B2. You
- wouldn't do that if you were really trying to create a colony model, because
- you wouldn't want to include, say, desert and rainforest (unless you had
- so much capacity you could afford to do things just for the heck of it).
-
- > There was much made of the wide variation in sunlight causing variation of
- > CO2 uptake by plants. Further we have all seen discussions of the somewhat
- > uncomfortable drop in O2 level. I would presume that any space colony would
- > have a reasonably abundant source of electric power (nuke or solor collectors).
- > This renders the issue of variable sunlight level moot as light is one thing
- > that we can easily create. Also, one would not expect the sunlight levels
- > in Tuscon to be available on other planets.
-
- Well, using solar electricity to run lights is a tad inefficient, for a
- start. Much better to use the light directly. Nucular power (let's spell
- it the way folks say it!) is something you'd use if you had to. You need to
- trade off the constancy of light against the maintenance of the artificial
- lighting system. As for sunlight levels, I think you would tend to choose
- colony planets with good lighting.
-
- --
- ||------------------------------------------------------------------------
- ||Dave Jones (dj@ekcolor.ssd.kodak.com)|Eastman Kodak Co. Rochester, NY |
-