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Old 05-26-2011, 08:38 PM   #161
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http://news.yahoo.com/s/ap/20110526/...smic_explosion

Furthest- ever cosmic explosion?
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Old 05-27-2011, 04:17 PM   #162
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http://news.yahoo.com/s/ap/20110527/...ckbeard_s_ship


Avast ye matie, Blackbeard's anchor found.
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Old 05-28-2011, 11:18 AM   #163
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http://news.yahoo.com/s/afp/20110527...physicsscience

Aussie student finds missing mass.
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Old 05-31-2011, 02:29 PM   #164
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http://news.yahoo.com/s/nm/20110530/...mate_greenland

Why the Vikings left Greenland.
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Old 05-31-2011, 06:00 PM   #165
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http://news.yahoo.com/s/yblog_upshot...s-rock-the-web

More pyramids beneath the sands of Egypt. If you click on the inner link it will take you to the image of what was found by a new robot used to go where humans could not.
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Old 06-07-2011, 08:33 PM   #166
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http://beta.news.yahoo.com/photos/new-species-discovered-in-Madagascar-slideshow/this-new-species-of-treefrog-boophis-lilianae-was-identified-in-2008-photo-axel-strauss-wwf-mad-photo.html

New species found in Madagascar.
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Old 06-09-2011, 02:43 PM   #167
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http://news.yahoo.com/s/time/2011060...ullnationyahoo

New elements added to periodic table.
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Old 06-11-2011, 05:17 PM   #168
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http://news.yahoo.com/s/afp/switzerl...rgyenvironment

Second flight of solar plane.
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Old 06-12-2011, 01:39 PM   #169
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http://news.yahoo.com/s/afp/20110612...20110612173029

Genes and migraines.
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Old 06-15-2011, 01:25 PM   #170
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http://news.yahoo.com/s/afp/20110614/ts_afp/usspacesun

Solar sun spots
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Old 06-16-2011, 06:24 PM   #171
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http://news.yahoo.com/s/nm/us_space_black hole


Quirky blackhole
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Old 06-16-2011, 08:11 PM   #172
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Maybe this is the same black hole(<---Linky), but I'm not sure. Anyways, it is AWESOME!



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Old 06-20-2011, 04:01 PM   #173
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http://news.yahoo.com/s/space/201106...ropestudyfinds


Solar storm rope
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Old 06-20-2011, 08:06 PM   #174
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http://news.yahoo.com/s/livescience/...ribesfatalfoul

Roman gravestone decoded.
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Old 06-21-2011, 04:53 PM   #175
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http://news.yahoo.com/s/nm/20110621/sc_nm/us_oceans

Triple threat for the Oceans
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Old 06-25-2011, 01:10 PM   #176
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http://news.yahoo.com/s/space/201106...yearthonmonday

Close encounter
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Old 06-29-2011, 01:10 PM   #177
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http://news.yahoo.com/video/science-...-25771310.html

Video of solar plane at Paris air show.
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Old 06-29-2011, 08:56 PM   #178
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Earliest quasar is brightest object ever found

"A team of European astronomers, glimpsing back in time to when the universe was just a youngster, says it has detected the most distant and earliest quasar yet.

Light from this brilliant, starlike object took nearly 13 billion years to reach Earth, meaning the quasar existed when the universe was only 770 million years old — a kid by cosmic standards. The discovery ranks as the brightest object ever found.

To scientists' surprise, the black hole powering this quasar was 2 billion times more massive than the sun. How it grew so bulky so early in the universe's history is a mystery. Black holes are known to feed on stars, gas and other matter, but their growth was always thought to be slow.

The discovery was reported in Thursday's issue of the journal Nature.

Since quasars are so luminous, they guide astronomers studying the conditions of the cosmos following the Big Bang, the explosion believed to have created the universe 13.7 billion years ago. Researchers are constantly trying to outdo one another in their quest to see the universe as an infant. The deeper they peer into space, the further back in time they are looking.

The previous record holder was a quasar that dated to when the universe was 870 million years old.

The new quasar — with the tongue-twisting name ULAS J1120+0641 — was identified in images from a sky survey taken by the United Kingdom Infrared Telescope perched near the summit of Mauna Kea, Hawaii. The discovery was confirmed by other telescopes.

"It's like sifting for gold. You're looking for something shiny," said lead researcher Daniel Mortlock, an astrophysicist at Imperial College in London.

In an editorial accompanying the research, Chris Willott of the Canadian Astronomy Data Centre called the quasar a "monster" that could upend current theories about the growth of black holes."

source: http://www.cbc.ca/news/technology/st...st-quasar.html

Nature's article link: http://www.eso.org/public/archives/r...22/eso1122.pdf
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Old 07-02-2011, 09:43 PM   #179
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Default We should think twice before using the expression "bird brain".

"Crows share intelligence about enemies

Birds of a feather not only flock together, in the case of the American crow it seems they are also into group learning.

A five-year study of crows living near Seattle in Washington State show the birds can remember a "dangerous human" and are able to share their knowledge of the learned danger with their offspring and other crows.

It is a trait, says co-author Professor John Marzluff of the University of Washington, that can help species successfully adapt to, and co-evolve with, humans.

"The behaviour of individual people towards animals is often changing," says Marzluff.

"Because human actions often threaten animals, learning socially about individual people's habits would be advantageous."

Marzluff says the study, published today in Proceedings of the Royal Society B, was inspired by earlier research with crows on the university campus.

"I felt like they recognized us," he says.

To test his theory, two researchers, each wearing an identical "dangerous" mask, trapped, banded and released 7 to 15 birds at five different sites near Seattle.

To determine the impact of the capture on the crow population, over the next five years, observations were made about the birds' behaviour by people walking a designated route that included a trapping site.

These observers either wore a so-called neutral mask or one of the "dangerous" masks worn during the initial trapping event.

Consistent scolding
Within the first two weeks after trapping, an average of 26 per cent of crows encountered scolded the person wearing the dangerous mask.

Scolding, says Mazluff, is a harsh alarm kaw directed repeatedly at the threatening person accompanied by agitated wing and tail flicking. It is often accompanied by mobbing, where more than one crow jointly scolds.

After 1.25 years, 30.4 per cent of crows encountered by people wearing the dangerous mask scolded consistently, while that figure more than doubled to around 66 per cent almost three years after the initial trapping.

Marzluff says the area over which the awareness of the threat had spread also grew significantly during the study. Significantly, during the same timeframe, there was no change in the rate of scolding towards the person wearing the neutral mask.

He says their work shows the knowledge of the threat is passed on between peers and from parent to child.

"Crows recruit and tolerate others of their own and different species in mobs that form around dangerous people," he says.

"This social tolerance could allow naïve crows to learn about dangerous situations, locations and individual humans."

Marzuff says he had thought the memory of the threat would lose its potency, but instead was "increasing in strength now five years later".

"They hadn't seen me for a year with the mask on and when I walked out of the office they immediately scolded me," he says.

"I believe the fact that scolding 'works' in our system is somewhat self perpetuating as well because we move on down the trail as we are scolded.

"This might reinforce the behaviour as the scolding birds see a payoff (our departure) in response to their efforts."

Precise identification
Marzuff says the crows are very precise in their identification of the dangerous human.

He says the initial "dangerous" mask was a caveman's face with a mask of former U.S. vice-president Dick Cheney the neutral or control face.

However the team made six other masks — combinations of male, female, Caucasian and Asian — which were used at various sites as a dangerous face or a neutral face.

These looked a lot more realistic and similar to each other, yet the crows were "very, very good" at identifying which person was dangerous.

Professor Ken Cheng, of the Department of Biological Sciences at Macquarie University, says he is not surprised by the finding as birds are known to be smart animals. He says the crow belongs to the corvid family, which is commonly referred to as the "avian Einstein".

"If you can learn which of the animals are dangerous without having to face the danger you are going to benefit," says Cheng, who was not part of this study.

"It makes good survival sense to learn socially as it can be rather dangerous to test the danger yourself."

Cheng says although similar work on Australian native birds had not been done, the study cites a paper on social learning by Australian miner birds by University of Newcastle researcher Dr. Andrea Griffin.

Cheng says the paper is especially interesting because it is based in the urban ecology, which is a new niche for many animals.

"It is on the messy side because it is a field study, but that is inevitable and it more than makes up for it in the reasonable and careful inferences it draws about the data," he says.


source: http://www.cbc.ca/news/technology/st...s-enemies.html

from: Cornell, H.N., Marzluff, J.M., Pecoraro, S. (2011). Social learning spreads knowledge about dangerous humans among American crows. Proceedings of the Royal Society: Biological sciences, Published online before print June 29, 2011, doi: 10.1098/rspb.2011.0957
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Old 07-03-2011, 06:47 PM   #180
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http://news.yahoo.com/warming-ocean-...175316541.html

More on global warming.
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"Many proposals have been made to us to adopt your laws, your religion, your manners and your customs. We would be better pleased with beholding the good effects of these doctrines in your own practices, than with hearing you talk about them".
~Old Tassel, Chief of the Tsalagi (Cherokee)
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