Author Topic: Fossils and old stuff  (Read 6086 times)

Holly Stick

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Fossils and old stuff
« on: January 10, 2011, 04:26:12 PM »
A new kind of pterosaur found in BC on Hornby Island:
 
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...The pterosaur Gwawinapterus beardi likely soared through tropical forests inhabited by dinosaurs — its evolutionary cousins — during the late Cretaceous period about 70 million years ago, reported University of Alberta paleontologist Victoria Arbour...

http://www.cbc.ca/technology/story/2011/01/10/science-pterosaur-bc-horby-island-arbour.html
 
The scientific name is partly from the local First Nations language.  Be sure to scroll down the article to see Arbour's image of the critter done in First Nations style.
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Holly Stick

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Re: Fossils and old stuff
« Reply #1 on: January 11, 2011, 03:35:26 PM »
« Last Edit: January 11, 2011, 03:35:38 PM by Holly Stick »
Economics is a human creation, borders are human creations and nature doesn’t give a damn about these things. - David Suzuki

Holly Stick

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Re: Fossils and old stuff
« Reply #2 on: February 13, 2011, 01:01:36 AM »
The Permian extinction 250 million years ago may have been caused by volcanoes setting off coal fires:
 
http://geology.com/press-release/coal-fires-permian-extinction/
Economics is a human creation, borders are human creations and nature doesn’t give a damn about these things. - David Suzuki

Croghan27

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Re: Fossils and old stuff
« Reply #3 on: February 13, 2011, 08:40:15 AM »
Now here is a subject for all you 'we are not alone' believers out there ..... The Voynich manuscript has been dated to the 15th century.
 
This manuscript, discovered in a book sale by the Jesuits in Rome in 1912 is mostly a typical late middle age artifact, save that it is written in a language that so far has resisted all attempts to decipher.
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But a second, closer look reveals that nothing here is what it seems. Alien characters, some resembling Latin letters, others unlike anything used in any known language, are arranged into what appear to be words and sentences, except they don't resemble anything written – or read – by human beings.

THEY ARE OUT THERE - AND HAVE EVEN SENT US VALENTINE CARDS. :o
"It is also a good rule not to put overmuch confidence in the observational results that are put forward until they are confirmed by theory." -- Arthur Stanley Eddington

Boom Boom

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Re: Fossils and old stuff
« Reply #4 on: February 13, 2011, 09:34:55 AM »

THEY ARE OUT THERE - AND HAVE EVEN SENT US VALENTINE CARDS. :o

...cue spooky music!

skdadl

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Re: Fossils and old stuff
« Reply #5 on: February 13, 2011, 10:52:26 AM »
Oh, have I never mentioned to you my good friend Qfwfq? He lives in my attic, pops out to commune whenever he feels the need, seems charmed and amused by humans. The kittehs love him.

Croghan27

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Re: Fossils and old stuff
« Reply #6 on: February 13, 2011, 11:02:23 AM »
Oh, have I never mentioned to you my good friend Qfwfq? He lives in my attic, pops out to commune whenever he feels the need, seems charmed and amused by humans. The kittehs love him.

Obviously, when finally deciphered the Voynich Manuscript will be renamed: Qfwfq: The Attic Years.
"It is also a good rule not to put overmuch confidence in the observational results that are put forward until they are confirmed by theory." -- Arthur Stanley Eddington

Holly Stick

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Re: Fossils and old stuff
« Reply #7 on: February 13, 2011, 01:20:25 PM »
Hey, that's my book!  It fell out of the TARDIS one day...  Oops....
Economics is a human creation, borders are human creations and nature doesn’t give a damn about these things. - David Suzuki

Holly Stick

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« Last Edit: March 22, 2011, 03:41:50 PM by Holly Stick »
Economics is a human creation, borders are human creations and nature doesn’t give a damn about these things. - David Suzuki

Holly Stick

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Re: Fossils and old stuff
« Reply #9 on: April 16, 2011, 05:58:19 PM »
RealClimate article on the current thinking about preindustrial land use:
 
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...Arguably, the most significant new insight emerging from this issue comes from several papers that converge on a view of pre-industrial land use that is very different from the one that has prevailed until recently. Most previous modeling simulations relied on the simplifying assumption that per-capita clearance and cultivation remained small and nearly constant during the late Holocene, but historical and archeological data now reveal much larger earlier per-capita land use than used in these models...

http://www.realclimate.org/index.php/archives/2011/04/an-emerging-view-on-early-land-use/
 
« Last Edit: April 16, 2011, 05:59:24 PM by Holly Stick »
Economics is a human creation, borders are human creations and nature doesn’t give a damn about these things. - David Suzuki

Antonia

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Re: Fossils and old stuff
« Reply #10 on: April 17, 2011, 08:49:37 PM »
What this guy told me.

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Needless to say, as an environmental historian who has studied some 65 million years of earthly “epochs,” he takes the long view.
The very long view.
In Deep Future, Stager focuses on what scientists have come to call the Anthropocene, the geological age of humans, when people — instead of, say, dinosaurs — dominate and define the planet.
By some definitions, that started when we began to reshape nature by razing forests and clearing land for agriculture. By others, it was launched by the burning of fossil fuels during the Industrial Age.
To Stager, it begins thousands of years before that, at the end of the last Ice Age, when human hunters wiped out many of the world’s largest mammals, causing mass extinctions.
It’s as if we were born to destroy.

I am not so sure all that land was cleared purely for agriculture, especialy in Europe. It was deforested to build ships for the Greeks, Romans etc. And let's not forget all the burning for fuel -- warmth and cooking.
It is when we all play safe that we create a world of utmost insecurity. It is when we all play safe that fatality will lead us to our doom. It is in the "dark shade of courage" alone that the spell can be broken.
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skdadl

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Re: Fossils and old stuff
« Reply #11 on: April 17, 2011, 09:00:48 PM »
The ancient Caledonian forest in Scotland was there until the late C17/C18, when indeed it began to be taken down for shipbuilding. Mind you, the Scottish Highlands are more marginal than is central Europe, but the trees were there until very recently.

Holly Stick

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Re: Fossils and old stuff
« Reply #12 on: April 17, 2011, 09:48:57 PM »
There's continuing discussion of this in the comments at the Reaclimate link, and the guest author Bill Ruddiman is responding to various comments. For instance, about which was more significant, human caused fires or natural fires which increase when the weather gets warmer. He says expert opinion is divided, though there are specific cases such as the Maori burning a lot to encourage more bracken growth.
Economics is a human creation, borders are human creations and nature doesn’t give a damn about these things. - David Suzuki

Holly Stick

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Economics is a human creation, borders are human creations and nature doesn’t give a damn about these things. - David Suzuki

Holly Stick

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Re: Fossils and old stuff
« Reply #14 on: May 27, 2011, 10:27:19 AM »
Economics is a human creation, borders are human creations and nature doesn’t give a damn about these things. - David Suzuki

 

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