[SpaceProgram] Introduction & Leightweight probes

[Paul Szymkowiak]

Slight tangent on the "ecosphere", but I kind of enjoyed this 1986 review
by Carl Sagan:

  http://www.eco-sphere.com/sagan.html

Nicely written.

Potentially useful input/ a reference to consider when attempting to convey
the magic and wonder of putting similar closed ecosystems into space


On 15 April 2012 11:47, cole santos <cksantos85 at gmail.com> wrote:

> The mini bio dome has been done with shrimp. they are a native
> hawaiian species that is very small and its used in closed habitats
> for desks. nasa sent one up a long time ago. Shrimp is called opae ula
> it eats algae and prevents it from blooming. in turn it feeds algae.
> They last about a year in closed cycle and many years in open tanks.
>
> On Sat, Apr 14, 2012 at 9:32 AM, Andreas Sturm <masterstorm123 at gmail.com>
> wrote:
> > Maybe we should start a new thread with that?
> >
> >
> > Great idea, but what exactly:
> >
> > There's a dome of glas in which there are some organisms. Do they get
> their
> > oxygen/carbon dioxide out of a tank or shall it be a closed cycle (as
> much
> > as possible)?
> >
> > How do you confirm biological activities?
> >
> > With bacteria you see a lawn of them when they thrive. Optical density
> can
> > work also.
> >
> > Liches grow very slow, so it's difficult to see the difference. A carbon
> > dioxide and oxygen sensor is expensive.
> >
> >
> > What would be interesting: Grow bacteria on nothing but moon soil. Taake
> > some soil, add water, atmosphere and bacteria. Will they thrive? -> If
> so,
> > phosphorus etc. is in the moon soil.
> >
> >
> >
> > There is a fish that makes electrical discharges to paralyse other fish
> (get
> > food and defense).
> > If bacteria can also produce electricity, you could just measure the
> voltage
> > thus seeing how much activity there is.
> >
> >
> > or this: Bacteria that produce methane or hydrogen (better methane
> because
> > lower osmosis!). Use this as an additional fuel for the probe. E.g. fuel
> > cell. Or methanol producing -> methanol fuel cell. Voltage is directly
> > proportinal to how much bacteria are their alive.
> >
>
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