Re: DNA

"Max Headroom" <Max@[EMAIL PROTECTED]
> wrote in message 
news:11a8kvkjt3thh3c@[EMAIL PROTECTED]
>>
>
> They don't even need a clay vehicle. Cristóbal Viedma has shown that
> mechanically mixing a supersaturated solution with ordinary toy marbles
> during crystallization can accomplish a homochiral cascade:
>
> Total chiral symmetry breaking by bifurcation from racemic systems:
> when "left" and "right" cannot coexist:
> "This is the first experimental case in which one observes the complete
> elimination of a chiral population of a hand in favor of the other one.
> Beyond the specific aspects of these experiments, a fascinating fact can
> be established with far reaching implications: final and total chiral 
> purity
> seems to be an inexorable exigency in the course of some natural 
> processes."
> http://www.ucm.es/info/crismin
e/Cristobal_quiralidad/Rotura_
simetria.htm
>
> Given that all organic life on Earth is homochiral this seems like
> a significant breakthrough and may rule-out any pre-requisite for
> comet/meteorite seeding of life on earth.
>
> Some alternative energy research is aimed at the production of long
> synthetic hydrocarbon chains and will likely lead to biochemical methods
> congruent with the generation of long amino acid chains. No surprise
> there, the quest for an energy surplus needed for procreation has always
> been associated with life.
>
> There seems stronger evidence that life began deep in the anaerobic
> bowels of the Earth at very hot temperatures that one would associate
> with "Hell". The sun was not likely as reliable an energy source
> in the early days. Being battered by debris from the early beginnings
> of solar system, the sun likely sent out many solar flares, and
> the asteroids likely created clouds over the earth disrupting attempts
> to bootstrap life on the surface purely from solar energy.
>
> The inclusion of endo-symbiotic mitochondria seems to be an im****tant
> step in evolution of higher life forms seeking more diversity in their
> energy resources as they hatched from the relative protection of
> mother earth's interior. In that sense mammals could be compared
> to a sort of hybrid car.

Good post, sir! Yes, these are all significant ideas! I myself went with 
'clays' because I've always thought it was a sweet idea -- and it really 
blew my mind when I was a kid!

Would be good to see a smart TV programme about this whole topic!

Katt.