Archive for the ‘Blogroll’ Category

Two Clues to the Origin of Life

November 17, 2017

Two big CLUES to how life began on Earth.

1. There had to be continual energy.

Because of the energetic continuity requirement – which follows from the Darwinian evolutionary continuity principle (see Lahav (1999); Wolf and Koonin
(2007) and references therein) – the energy flows that deserve attention in evolu-
tionary context are those that remain constant on the evolutionary relevant, geolog-
ical timescale. This consideration essentially discounts the evolutionary importance of occasional energy inputs from impact bombardment, atmospheric electric
discharges, shock waves, volcanic explosions, and so on. It is also unlikely that life could notably depend on the chemical compounds that were produced or delivered during such occasional events. It seems implausible that the first life
forms could wait from one occasional event (e.g., volcanic explosion) to another to get energy and nourishment. There are no known organisms that obligatorily depend on such irregular sources of energy and matter.

2. Bases and UV.

The exclusive feature of natural
nucleobases is their unique photostability (Cadet and Vigny 1990). Since this trait is not related to the storage of genetic information, several authors (Skulachev 1969; Sagan 1973; Cadet and Vigny 1990) have noted that this property could have
been of some use when the UV flux at the surface of primordial Earth – owing to the absence of the ozone layer – was much stronger than it is now. Nucleobases apparently can absorb excess energy quanta from sugar-phosphate moieties and protect them from photo-dissociation (Goossen and Kloosterboer 1978). This feature explains why the UV damage to the backbones even of modern RNA and DNA molecules is 103–104 times less frequent than the destruction of nucleobases proper (Cadet and Vigny 1990). Under the assumption that the unique photostability of nucleobases could hardly be incidental, we have argued that
natural nucleotides should have been selected within the reach of solar light and that nucleobases may have protected the first RNA-like polymers from photo- dissociation (Mulkidjanian et al. 2003).

Both quotes from Mulkidhanian papers.

My suggestion is that life is the most stable chemical system under daily UV radiation. The problem with most origin of life scenarios is that there is nothing forcing the change except fate or fluke events. That problem is solved when the origin of live is a response to a daily cycle of UV. Then chemical systems have to change and adopt or they are destroyed.

Which is more probable, a one time pop up of 5 or so linked chemical steps that each have to occur in the proper order in a hostile environment that they are not protected in and that would quickly destroy each step, OR a chemical selection over millions of years of UV radiation?

My paper:
http://www.daviddarling.info/encyclopedia/U/UV_origin_of_life.html

For everything else see the website
tomhendricks.us

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The New Issue of Musea, Now Online

November 15, 2017

Dear Musea Readers,

The new Musea issue (a double issue) #201/#202 is out, in your mail, at a few places in Dallas, or online.

The main article, besides some catching up after the 100 pager 200th issue, is 27 CENSORED ART NEWS.
The media may be doing OK in what it covers, but it’s not good at the news it never covers!

Go to the big website tomhendricks.us and elevator up to floor #5. Then click on the Musea website.

Here is a sampling of news stories you’ve never heard anywhere.

The 27 specific censored issues in the arts, culture, and media include; no protest songs allowed on any mainstream radio in the US, public domain mess or why isn’t Mickey Mouse in the PD, political book deals with massive advances, Hollywood makes millions but theater workers make lowest wages allowed, 3 CEO’s control 80% of music (Warners Universal Sony) and 1% of musicians make 70% of the money…

Thanks to Matthew Creed, the webmaster for Musea for posting the issue.

Tom Hendricks
(editor of the 25 year old zine Musea)

MAIN Website
http://tomhendricks.us/

ZINE, MUSEA, Named one of the best ZINES by UTNE magazine. Featured on ROCKETBOOM)

First Check

November 4, 2017

Dear Readers,

This week marks a milestone of sorts for me. I got my first check for book sales. This is my first check for either book or music sales online. The check is for $49.31. First steps!

Musea Quiz 10/17

October 24, 2017

The answer to, and winner (if any) for, our last contest question of:

I say Earthlings have landed on Mars. You say no.
When I tell you why I know that it is true, you will say … Yes Tom you are correct and I was wrong. Explain what is going on!

IS …
Bacteria are Earthlings just as much as you and me. Though NASA does everything it can to keep the outer space hardware sterile, I doubt they cover EVERY bacterial Earthling. So I say, recently, Earthlings have landed on Saturn – and in all likelihood when the spacecraft Cassini fell into Saturn 9/15/17, there were bacteria aboard and they went down with the ship!

I had no correct eligible answers. Seems you didn’t have a GERM of an idea on this one. I don’t dumb down so please wise up.

Now on to a new Q.: Win a copy of any of my 9 CDs, or copy of one of my artworks IF you are the first to …

E-MAIL ME AT THIS ADDRESS: tom-hendricks @ att.net(remove blanks of course) with the correct answer to the following art question .

DEDICATION: These contests are dedicated to my sister, Peggy, who answered more of the questions correctly than anyone else.

QUESTION;
What is this … ?

FINE PRINT: The CD prize is only available to those with mailing addresses in the US. Foreign winners will have to settle for the miniscule fame alone, and the satisfaction of a job well done. But don’t forget you can listen to all the music , read all my writings, and see all the art, whether you win or lose – and I’d be glad if you did!

Readers, IF you like these puzzles and would like to resend them to friends, post them on any newsgroup, or any website, please do so. The more the merrier!

For all things TH, (music, art, writing, Musea, etc) see
tomhendricks.us

Tom Hendricks
(editor of the 25 year old zine Musea)

TeXas Video Showdown and KERA

October 24, 2017

Musea Readers know that I have my problems with both NPR and local stations KERA and KXT for their lack of support for artists.

So I was surprised, when googling my name to find this posted in April of 2015 on the KERA Art and Seek site.

I had sent them a story and link feeling that they would never do anything about it.

Take a look, and know that the TeXas Video Showdown, worst video ever made… on purpose, is still going strong with thousands of hits.

When you go to the link, note that there is a place to add comments. Please do if you would like to support the cause.

Now when I criticize their coverage I have to change, “never covered” to” that one time!”

http://artandseek.org/calendar/event/70571/texas-video-showdown


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