home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
The Epic Interactive Encyclopedia 1996
/
Epic Interactive Encyclopedia, The (1996)(Epic Marketing)[non-bootable].iso
/
b
/
biosphere_2
/
infotext
< prev
next >
Wrap
Text File
|
1992-09-02
|
1KB
|
37 lines
BioSphere 2 or BS2 is an ecological test
project. It is jokingly known as a "planet in
a bottle", and is situated in Arizona, USA.
Under a sealed glass dome, several different
habitats are recreated, with representatives
of nearly 4,000 species, including between
1991 and 1993, eight humans, to see how well
air, water, and waste can be recycled in an
enclosed environment and whether a stable
ecosystem can be created. The sealed area
covers a total of 3.╜ acres and contains
tropical rainforest, salt marsh, desert,
coral reef, and savanna habitats, as well as
a section for intensive agriculture. The
people within are entirely self-sufficient,
except for electricity, which is supplied by
a 3.7 megawatt power station on the outside
as solar panels were considered too expensive
for this test project. Experiments with
biospheres that contain relatively simple
life forms have been carried out for decades,
and a 21-day trial period in 1989 that
included humans preceded the construction of
BS2. However, BS2 is not in fact the second
in a series: the Earth is considered to be
BioSphere 1. The cost of setting up and
running the BS2 project has been
estimated at $110 million, some of which
will be covered by visitors, who can
view the inhabitants through the geodesic
glass dome. To date the only major problem
has been in maintaining satisfactory oxygen
levels, which in 1993 became so erratic
that additional oxygen had to be pumped in.
Subject by: John Denver