Hallo Klauspeter,
außer Pessimisten und Optimisten gibt es noch die Realisten. [8D]
Beim Überfliegen dieses PDFs: http://arxiv.org/abs/1005.3833 habe ich mich gefragt, was die Autoren beim Verfassen wohl geraucht haben...
Beispiel gefällig?
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">Zitat:<hr height="1" noshade id="quote">The second big issue for He3 mining is extraction from the atmospheres of the gas giants.
The problem of fuel extraction could be solved, for example, by launching a spacecraft to Uranus
orbit, which would arrive in approximately 7 years and then by dropping a probe into the atmo-
sphere. An inflatable gas bag would then be used to move through the vertical atmosphere until
a few atmospheres of pressure had been reached. Neutral buoyancy would then be maintained.
Small fission reactors would be used to power pumps and any refrigeration for the liquefaction
and extraction of the He3 by separating it from the He4 .
<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">
alles klar... He3 vom Uranus [:D]
Grüße
Michael
