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 < everything-list@googlegroups.com> wrote: > > > ------------------------------ > *From:* Russell Standish <li...@hpcoders.com.au> > *To:* everything-list@googlegroups.com > *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 hpco...@hpcoders.com.au > 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 everything-list+unsubscr...@googlegroups.com. > To post to this group, send email to everything-list@googlegroups.com. > 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 everything-list+unsubscr...@googlegroups.com. > To post to this group, send email to everything-list@googlegroups.com. > 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 everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
