Tuesday, September 7, 2010

An F-22's Rainbow



Refraction Action: Stunning Rainbow Caught In Trail Of F-22 Fighter Jet -- The Daily Mail

It looks like a fancy new special smoke effect that would put the the Red Arrows' simple colours to shame.

But this spectacular photograph is simply a remarkable fluke of nature when all the components that were needed to create this kaleidoscope effect were suddenly present.

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My Comment: As an aviation buff, for me this is cool.

The Natural Selection Of Leaders (Commentary)

Was he born for the job? (Image: David Brown/Polaris/Eyevine)

From New Scientist:

IMAGINE this. You and your colleagues are gathered round a conference table, with coffee and biscuits. You open the door and greet the first sharp-suited candidate of the day. Before evening falls, one lucky applicant will hear the unlikely phrase: "We would like to offer you the job of being our boss."

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The Last Word On Battery Longevity In Gadgets

Your charging habits need to change. There's more life in those batteries than you think. (Photo by Flickr/jzx100.com)

From Popular Mechanics:

Where's the battery-extending truth in the mix of myths, speculation and red herrings? Yes, there is (some) actual scientific research that is all too often ignored. Here is how to make your electronic devices actually last longer.

The proof, to me, was irrefutable. I had bought a new iPod within weeks of my coworker: the same generation player, running on the same lithium-ion (li-ion) cobalt oxide battery. She plugged it into her computer every day to get to her music. That seemed like an astonishing mistake—obviously, her iPod's battery would suffer, since it would cycle every day, multiple times during each 8, 10 or 12-hour workday. My player, which I ran down completely before each charge, would burn less cycles, and retain more power in the long run.

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With Ancient Arches, The Old Is New Again

The Mapungubwe National Park Interpretive Center in South Africa. Robert Rich, Peter Rich Architects

From The Smithsonian Magazine:

An MIT professor shows how ancient architecture can be the basis for a more sustainable future

In a basement workshop, John Ochsendorf stands beneath a thin layer of bricks mortared into a sinuous overhead arch that seems to defy gravity. With the heel of his hand, he beats against the bricks. “Hear that ringing?” he asks. “It’s tight like a drum.”

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The ESO Turns Its Massive Laser Beam On The Heavens (For Science)

The VLT's Yepun Instrument Lights Up the Sky ESO/Y. Beletsky

From Popular Science:

We are not at war with an alien race from the center of the Milky Way, but if we were, this is exactly what we would want it to look like. Snapped at the European Southern Observatory's Paranal Observatory -- home of the Very Large Telescope (VLT) array -- the photo depicts the VLT's Laser Guide Star facility in action.

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A Smile May Not Mean Your Baby Is Happy

Doctors who measured brain activity in babies subjected to a painful procedure found that even when they they did not cry or grimace there was still a pain response in the brain. ALAMY

From The Independent:

If you want to tell whether your baby is in pain, looking at its face may not be enough, researchers have found.

Generations of mothers have depended on their baby's facial expressions to tell them what they are feeling. But a study has found that giving a baby a spoonful of sugar before an injection or blood test may alter its expression without lessening its pain.

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Melting Rate Of Icecaps In Greenland And Western Antarctica Lower Than Expected

This artist's concept shows GRACE's twin satellites, which orbit Earth in a back-to-back manner and change positions in response to variations in Earth's gravity field. The GRACE satellites house microwave ranging systems that measure the change in the distance between the satellites over time, enabling them to essentially "weigh" the changes in glaciers. (Credit: NASA)

From Science Daily:

ScienceDaily (Sep. 7, 2010) — The Greenland and West Antarctic ice caps are melting at half the speed previously predicted, according to analysis of recent satellite data.

The finding is the result of research by a joint US/Dutch team from the Jet Propulsion Laboratory, Delft University of Technology (TU Delft, The Netherlands) and SRON Netherlands Institute for Space Research. The scientists have published their work in the September issue of Nature Geoscience.

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Huge Windstorm Spawns New Classification: 'Super Derecho'

The radar image on the left, taken at 11:56 a.m. on May 8, 2009, shows the super derecho's bow-shaped structure, with a tropical-storm-like eye in the center. A model forecast (right) accurately predicts this rare structure. Credit: NOAA/NWS/Morris Weisman.

From Live Science:

A windstorm that swept across Kansas, Missouri and Illinois in May 2009 was so fierce that it has earned a brand-new name: super derecho.

A derecho (from the Spanish adverb for "straight") is a long-lived windstorm that forms in a straight line — unlike the swirling winds of a tornado — and is associated with what's known as a bow echo, a line of severe thunderstorms. The term "derecho" was first used over a century ago to describe a storm in Iowa. Across the United States there are generally one to three derecho events each year.

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Mars Contains Organic Material

New research has concluded that organic material was found on Mars, although NASA's Viking spacecraft, which took theis photograph, sent results in 1976 that were interpreted otherwise.

Not 'Life,' But Maybe 'Organics' On Mars -- Washington Post

Thirty-four years after NASA's Viking missions to Mars sent back results interpreted to mean there was no organic material - and consequently no life - on the planet, new research has concluded that organic material was found after all.

The finding does not bring scientists closer to discovering life on Mars, researchers say, but it does open the door to a greater likelihood that life exists, or once existed, on the planet.

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9/11 Is Still With Us


9/11 Imprint Persists in American Brains, Bodies -- Discovery News

Nine years after the attacks of 9/11, the psyches of people who were even distant from the events, show permanent changes.

To elicit powerful emotions and vivid memories, all it takes for many Americans is the mention of two numbers -- 9/11.

Nine years later, studies suggest, the terrorist attacks of September 11, 2001, continue to affect the way we think, remember and react to stressful situations. The actual trauma ended long ago, but for many people, measures of brain activity and body chemistry are different than they were before it happened.

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My Comment: An old girl friend of mine witnessed the 9/11 attacks from her Manhattan office window a few miles away. After the attacks, she moved back to Quebec and now lives in a small town 200 kilometers north of Montreal .... cities scare her, and when she goes to a city like Montreal she is only there briefly.

Yup .... the 9/11 imprint is still with us .... and for some .... even more so.

Quiet Sun Leads To Upper Atmosphere Collapse

Solar storms have dropped to unusually low levels from 2007 to 2009.
Credit: SOHO Consortium/ESA/NASA

From Cosmos/AFP:

WASHINGTON: The upper reaches of Earth's atmosphere are unexpectedly shrinking and cooling due to lower ultraviolet radiation from the Sun, U.S. scientists said.

The Sun's energy output dropped to unusually low levels from 2007 to 2009, a significantly long spell with virtually no sunspots or solar storms, according to scientists from the National Center for Atmospheric Research in Boulder, Colorado.

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A Solution To The Problem Of Wind Farms Near Military Bases

A military plane takes off at Dyess Air Force base near Abilene, Texas.
(Credit: Abigail Vander Hamm/AWEA)

Tech Fixes To Wind Turbine-Radar Conflict FaceHurdles -- CNET

Emerging technology can ease the problem of wind farms causing interference with air-traffic control systems. But deployment of that technology in the U.S. has been slowed by questions over authority and cost.

Since 2006, radar maker Raytheon and National Air Traffic Services, which provides air traffic control in the U.K., have been working on a project to upgrade air traffic radar so it can distinguish between aircraft and wind turbines' spinning blades. Concerns over the disturbances turbines can cause on air traffic control systems are already stunting the growth of wind power: radar and wind turbines conflicts derailed nearly as much as the total amount of installed wind power capacity in the U.S. last year.

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U.N. Exec: Cyberwar Could Be Worse Than Tsunami

ITU Secretary-General Hamdoun Toure'. (Credit: UN)

From ZDNet:

International cyberwar would be "worse than a tsunami" and should be averted by a global cybersecurity peace treaty, according to the head of the International Telecommunications Union.

Hamadoun Touré, who has been secretary-general of the UN agency since 1999 and is up for reelection in a few weeks' time, has targeted cybersecurity issues in his electoral pledges. Speaking at a London roundtable on Thursday, he said he had proposed such a treaty this year, but it had met "a lot of resistance" from industrialised nations.

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My Comment: Will governments bound themselves to international conventions when it comes to cyber security and cyberwar .... hmmmm .... I have my doubts. But some in the UN are optimistic that something can be done .... and will try to establish a framework in which countries must abide to and respect. My prediction, most countries will eventually sign on, but the usual suspects (i.e. North Korea, Iran, some former Soviet Union states, etc.) will not.

The Anatomy Of An E-Mail Hack

Emails can bear malicious links ready to unleash computer-enabled chaos with just a single click. (Getty Images)

From ABC News:

How Do E-Mail Viruses Spread? How Should You Protect Yourself?

Delivery notices from the post office, messages from out-of-touch friends and headlines from seasonal sporting events look innocent enough when they arrive in emailform.

But they all can bear malicious links ready to unleash computer-enabled chaos with just a single click.

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Reading Arabic 'Hard For Brain'


From The BBC:

Israeli scientists believe they have identified why Arabic is particularly hard to learn to read.

The University of Haifa team say people use both sides of their brain when they begin reading a language - but when learning Arabic this is wasting effort.

The detail of Arabic characters means students should use only the left side of their brain because that side is better at distinguishing detail.

The findings from the study of 40 people are reported in Neuropsychology.

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What Are BP, Apple, Amazon, And Others Spending On Google Advertising?


From Fast Company:

Google is typically very secretive about the specifics of its search revenue. I can't actually recall any other leak quite like this one, in which the budgets of specific companies are laid out--kudos to AdAge for snagging the internal document with such rarely seen information.

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Monday, September 6, 2010

Miniature Auto Differential Helps Tiny Aerial Robots Stay Aloft

Engineers at Harvard University are developing minuscule aerial robots that could someday be used to probe environmental hazards, forest fires, and other places too perilous for people. (Credit: Pratheev S. Sreetharan/Harvard University)

From Science Daily:

ScienceDaily (Sep. 3, 2010) — Microrobots could be used for search and rescue, agriculture, environmental monitoringEngineers at Harvard University have created a millionth-scale automobile differential to govern the flight of minuscule aerial robots that could someday be used to probe environmental hazards, forest fires, and other places too perilous for people.

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Top 10 Working Animals


From Live Science:

On Labor Day, we celebrate the accomplishments and contributions of American workers. But humans aren't the only ones who toil: Animals do, too. People have used animal labor for thousands of years, and even today, our fuzzy (or feathery, or slippery) friends can go places and do things we can't.

-- Stephanie Pappas, LiveScience Senior Writer

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Are Aliens Eavesdropping On Us? Not Likely


From Discovery News:

The seeming infinity of stars we see in deep exposures of the Milky Way belies the fact that our galaxy has been dead silent when it comes to detecting a radio or optical signal saying “hello” from any neighboring extraterrestrial civilization.

Maybe extraterrestrials are out there but they might not have gone to the effort and expense of building a powerful radio beam and aiming it at us. This may not be in their annual science budget. Or they simply may not want to make their presence know to the universe, as astrophysicist Stephen Hawking recently warned us not to do.

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Archaeologists Uncover 7,000-Year-Old Oar

"The oar was well preserved because fine mud layers completely blocked oxygen from decaying it," said Yoon On-Shik, a researcher from Gimhae National Museum.

From Cosmos:

SEOUL: A rare neolithic period wooden boat oar, believed to date back about 7,000 years but still in good condition, has been unearthed by South Korean archaeologists.

The oar was discovered in mud land in Changnyeong, 240 kilometres southeast of Seoul, the Gimhae National Museum said.

"This is a very rare find, not only in South Korea but also in the world," said museum researcher Yoon On-Shik. "We have to check with Chinese artefacts to confirm whether it is the oldest watercraft ever found in the world."

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