This geezer seems to think solar is good to go... http://readersupportednews.org/opinion2/277-75/24317-the-turning-point-new-hope-for-the-climate
On 19 June 2014 10:15, 'Chris de Morsella' via Everything List < [email protected]> wrote: > > > ------------------------------ > *From:* Russell Standish <[email protected]> > *To:* [email protected] > *Sent:* Wednesday, June 18, 2014 12:31 AM > *Subject:* Re: Solar power's "bright future" [ may be brighter thanks to > us aping the quantum trickery of certain algae (cryptophytes specifically)] > > On Tue, Jun 17, 2014 at 10:27:48PM -0700, meekerdb wrote: > > > > What is baffling to me is that photosynthesis in algae relies on > > absorption in the red and blue part of the spectrum, but reflects > > the big green part in between?? Why didn't it evolve another > > pigment to capture that in order to live in low light conditions? > > > > >>The idea I've heard is that the original photosynthesiser absorbed the > green portion of the spectrum, and then the current photosynthesiser > came along later, and made use of the remaining bits of the spectrum > (red+blue), and ultimately outcompeted the earlier photosynthesis > system. > > Interesting! Did not hear about this hypothesis... so thanks for sharing. > I have also wondered why the green spectrum is not being used in > photosynthesis. > > > >>I gather the earlier photosynthetic system might still be around - the > so-called purple bacteria, which use a different photosynthesis process > producing sulfur, not oxygen. > > This also explain why the atmosphere was not oxygenated until ca 2Gya. > > >>But it does illustrate the way evolution can get stuck in a local > optima. And also further evidence that any purported Creator must be > completely incompetent. > > Evolution always must begin with a preexisting platform -- so to speak -- > and builds on top of it (in an evolutionary way). Take the human brain as > an example. We remain stuck with the (local optima) of our reptilian brains > for example, and much of our functioning is still centered in these ancient > parts of our brain. Evolution needs to live with what it got and build upon > it.... and human brain anatomy tells this story of hundreds of millions of > years of tinkering, adapting and adding new systems on top of older > preexisting systems (as opposed to radical from the ground up re-building). > > Cheers, > Chris > > > Cheers > > -- > > > ---------------------------------------------------------------------------- > Prof Russell Standish Phone 0425 253119 (mobile) > Principal, High Performance Coders > Visiting Professor of Mathematics [email protected] > University of New South Wales http://www.hpcoders.com.au > > Latest project: The Amoeba's Secret > (http://www.hpcoders.com.au/AmoebasSecret.html) > > > > > ---------------------------------------------------------------------------- > > -- > You received this message because you are subscribed to the Google Groups > "Everything List" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/everything-list. > For more options, visit https://groups.google.com/d/optout. > > > -- > You received this message because you are subscribed to the Google Groups > "Everything List" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/everything-list. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
