Slight tangent on the "ecosphere", but I kind of enjoyed this 1986 review by Carl Sagan:<div><br></div><div> <a href="http://www.eco-sphere.com/sagan.html">http://www.eco-sphere.com/sagan.html</a></div><div><br>
</div><div>Nicely written.</div><div><br></div><div>Potentially useful input/ a reference to consider when attempting to convey the magic and wonder of putting similar closed ecosystems into space </div><div><br></div><div>
<br></div><div><div class="gmail_quote">On 15 April 2012 11:47, cole santos <span dir="ltr"><<a href="mailto:cksantos85@gmail.com">cksantos85@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
The mini bio dome has been done with shrimp. they are a native<br>
hawaiian species that is very small and its used in closed habitats<br>
for desks. nasa sent one up a long time ago. Shrimp is called opae ula<br>
it eats algae and prevents it from blooming. in turn it feeds algae.<br>
They last about a year in closed cycle and many years in open tanks.<br>
<div class="HOEnZb"><div class="h5"><br>
On Sat, Apr 14, 2012 at 9:32 AM, Andreas Sturm <<a href="mailto:masterstorm123@gmail.com">masterstorm123@gmail.com</a>> wrote:<br>
> Maybe we should start a new thread with that?<br>
><br>
><br>
> Great idea, but what exactly:<br>
><br>
> There's a dome of glas in which there are some organisms. Do they get their<br>
> oxygen/carbon dioxide out of a tank or shall it be a closed cycle (as much<br>
> as possible)?<br>
><br>
> How do you confirm biological activities?<br>
><br>
> With bacteria you see a lawn of them when they thrive. Optical density can<br>
> work also.<br>
><br>
> Liches grow very slow, so it's difficult to see the difference. A carbon<br>
> dioxide and oxygen sensor is expensive.<br>
><br>
><br>
> What would be interesting: Grow bacteria on nothing but moon soil. Taake<br>
> some soil, add water, atmosphere and bacteria. Will they thrive? -> If so,<br>
> phosphorus etc. is in the moon soil.<br>
><br>
><br>
><br>
> There is a fish that makes electrical discharges to paralyse other fish (get<br>
> food and defense).<br>
> If bacteria can also produce electricity, you could just measure the voltage<br>
> thus seeing how much activity there is.<br>
><br>
><br>
> or this: Bacteria that produce methane or hydrogen (better methane because<br>
> lower osmosis!). Use this as an additional fuel for the probe. E.g. fuel<br>
> cell. Or methanol producing -> methanol fuel cell. Voltage is directly<br>
> proportinal to how much bacteria are their alive.<br>
><br></div></div></blockquote></div></div>