Friday, October 30, 2009

5 Frightening (But True) Space Stories

The First Seven Astronauts

From Discover Magazine:

There's nothing like a good horror story in space*. I grew up watching Sigourney Weaver outsmart xenomorphs in her underwear and subsequently spent a little too much time reading the likes of Stephen King's "I am the Doorway," H.P. Lovecraft's "In the Walls of Eryx" and John Steakley's "Armor."

As a result, it's hard for me to read about space exploration without thinking of about its darker possibilities -- and I don't just mean aliens and distant Hell worlds. Leaving Earth's atmosphere is a dangerous endeavor and, major tragedies aside, there have been a number of smaller terrifying, grotesque and absurd episodes to come out of it. So if you'll allow me to serve as your cosmic Crypt Keeper for a few minutes, I thought I'd run though a few of the ones that get under my skin.

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Beginner’s Guide To Skype

(Rich Clabaugh/Staff)

From The Christian Science Monitor:

For some 500 million users, Skype turns their PC into a phone.

International calls can get mighty pricey. Perhaps that’s why so many people use Skype, a free way to make calls – and even have video chats – all over the world from the comfort of their computer screens.

Skype isn’t new. It launched in 2003 and now boasts 483 million registered accounts. But if you haven’t tried it yet, don’t fret. Here’s what you need to know.

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Robins Can See Earth's Magnetic Field

German scientists studied 36 European robins and concluded that the birds can 'see' the Earth's magnetic field, allowing them to navigate Photo: PA

From The Telegraph:

Robins can 'see' the Earth's magnetic field which allows them to navigate, scientists believe.

The information, relayed to a specialised light-processing region of the brain called ''cluster N'', helps the robin find its way on migration flights.

Experts know birds possess an internal magnetic compass, but there is disagreement about what form it takes.

Read more ....

Thursday, October 29, 2009

Blast From The Past: Most Distant Stellar Object Gives Clues About Early Universe

Gamma-ray bursts longer than two seconds are caused by the detonation of a massive star at the end of its life. Jets of particles and gamma radiation are emitted in opposite directions from the stellar core as the star collapses. This animation shows what a gamma-ray burst might look like up close. Credit: (Credit: NASA/Swift/Cruz deWilde)

From Science Daily:

Science Daily (Oct. 29, 2009) — Astronomers using the National Science Foundation's Very Large Array (VLA) radio telescope have gained tantalizing insights into the nature of the most distant object ever observed in the Universe -- a gigantic stellar explosion known as a Gamma Ray Burst (GRB).

The explosion was detected on April 23 by NASA's Swift satellite, and scientists soon realized that it was more than 13 billion light-years from Earth. It represents an event that occurred 630 million years after the Big Bang, when the Universe was only four percent of its current age of 13.7 billion years.

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Why We Carve Pumpkins, Not Turnips

The United States' major pumpkin states produce over one billion pounds worth of pumpkins annually.

From Live Science:

Big orange veggies are pretty strange as far as holiday symbols go, but there are actual historical reasons that we carve pumpkins every Halloween.

Like Halloween itself, the display and carving of pumpkins – from the lanterns placed inside to the scary faces we pick – has pagan origins that morphed with the passage of time as well as the crossing of an ocean.

The modern traditions of Halloween have roots in a Celtic holiday called Samhain, which was celebrated throughout Western Europe (but especially Ireland) every Oct. 31 to mark the end of the summer and the final harvest.

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Sat Nav Companies Tremble As Google Maps Navigation Launches FREE Turn-By-Turn App For Mobile Phones



From The Daily Mail:

Google has unveiled a free navigation system for mobile phones, which could spell the end of consumers paying for costly navigation devices from firms such as TomTom.

The Motorola Droid will be the first phone equipped with Google Maps Navigation, which will include many of the features of traditional GPS devices such as three-dimensional views and turn-by-turn voice guidance.

The internet-connected system allows navigation using voice search in English, provides live traffic data, satellite imagery from Google Maps and Google's 'street view' - real pictures of destinations.

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Tuna Ban 'Justified' By Science

The bluefin is highly prized for many dishes, notably sushi

From The BBC:

Banning trade in Atlantic bluefin tuna is justified by the extent of their decline, an analysis by scientists advising fisheries regulators suggests.

The International Commission for the Conservation of Atlantic Tunas' (ICCAT) advisers said stocks are probably less than 15% of their original size.

The analysis has delighted conservation groups, which have warned that over-fishing risks the species' survival.

ICCAT meets to consider the report in 10 days' time.

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Fibre Boosts Immune System, Study Finds

Fibre-rich foods may keep you regular and protect against bowel cancer, but they help boost the immune system too Australian research has found. Credit: iStockphoto

From Cosmos:

SYDNEY: An apple a day may keep the doctor away but a fibre-filled diet could also hold the key to keeping asthma, diabetes and arthritis at bay, according to Australian research released Thursday.

Scientists at Sydney's Garvan Institute of Medical Research say that fibre not only helps keep people regular, it boosts the immune system so it can better combat inflammatory diseases.

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‘Impossible’ Device Could Propel Flying Cars, Stealth Missiles

From the Danger Room:

The Emdrive is an electromagnetic drive that would generate thrust from a closed system — “impossible” say some experts.

To critics, it’s flat-out junk science, not even worth thinking about. But its inventor, Roger Shawyer, has doggedly continued his work. As Danger Room reported last year, Chinese scientists claimed to validate his math and were building their own version.

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My Comment: If this is even remotely possible, warfare as we know it will completely change. Again .... it is a big if.

CDC: 5.7M Swine Flu Cases In First Few Months

From Time Magazine:

(ATLANTA) — As many as 5.7 million Americans were infected with swine flu during the first few months of the pandemic, according to estimates from federal health officials.

Scientists at the Centers for Disease Control and Prevention estimate that between 1.8 million and 5.7 million Americans were infected from mid-April through July 23. The figures are the CDC's most specific calculation to date.

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Pilots Distracted By Laptops? Not In Cockpits Of The Future.

(Newscom)

From Christian Science Monitor:

Automated flight controls under research may be able to sense how alert pilots are. It’s one way science could help prevent mistakes like the one made by the Northwest pilots who overflew Minneapolis by 150 miles.

As two Northwest pilots ponder their futures – minus their pilot licenses – researchers are developing new approaches for keeping pilots on their toes on long flights.

It’s part of a larger effort to improve air safety over the next decade or two with the US Federal Aviation Administration’s “NextGen” air-traffic control system.

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Nasa Peers Back Into The 'Cosmic Dark Ages'

An artist's impression of a gamma-ray burst.
NASA/ Goddard Space Flight Center Conceptual Image Lab


From The Independent:

A massive gamma-ray burst 13 billion light years away has thrown new light on the early years of the Universe.

The most distant object ever observed in space has provided scientists with an unprecedented insight into the "cosmic dark ages" following the birth of the Universe some 13.7 billion years ago.

A gigantic explosion on the edge of the known Universe has been confirmed as the furthermost object in the cosmos. It occurred nearly 700 million years after the Big Bang and its radiation has taken some 13 billion years to reach Earth – making it 13 billion light years away.

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15 Most Explosive Videos On The Internet



From The Telegraph:

From science experiments to building demolitions to nuclear tests, there are few things in life more visually impressive than explosions. Here are 15 of the most dramatic.

1. Blowing an anvil 200ft into the air. This stunt has scant scientific or educational value, but deserves a prominent place on the list for the presenter's coltish enthusiasm for explosions.

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Lucrative Inventions Pit Scientists Against Universities

By Bertrand Langolia, AFP/Getty Images

From USA Today:

Science, that lofty realm of the mind, where thoughts of fortune and financial gain never intrude.

Or do they?

"Oh, you bet it does," says Renee Kaswan of IP Advocate, an Atlanta-based researchers' patent-rights organization. "And it's urgent that someone take the side of researchers in educating them about their rights to their inventions," Kaswan says.

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Bad Driving May Have Genetic Basis, Study Finds

Bad drivers may in part have their genes to blame, suggests a new study
by UC Irvine neuroscientists. (Credit: iStockphoto)


From Science Daily:

Science Daily (Oct. 28, 2009) — Bad drivers may in part have their genes to blame, suggests a new study by UC Irvine neuroscientists.

People with a particular gene variant performed more than 20 percent worse on a driving test than people without it -- and a follow-up test a few days later yielded similar results. About 30 percent of Americans have the variant.

"These people make more errors from the get-go, and they forget more of what they learned after time away," said Dr. Steven Cramer, neurology associate professor and senior author of the study published recently in the journal Cerebral Cortex.

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40 Years Ago: The Message that Conceived the Internet

From Live Science:

On Oct. 29, 1969, UCLA student Charles Kline sent the first message over the ARPANET, the computer network that later became known as the Internet. Though only the "l" and "o" of his message ("login") were successfully transmitted, the interactive exchange ushered in a technological revolution that has — as anyone alive long enough to witness the shift knows — revolutionized human interaction.

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Stem Cell Study Leads To Breakthrough In Understanding Infertility

Understanding the details of how sperm and egg cells grow will help scientists develop treatments. Photograph: Corbis

From The Guardian:

Hidden stage of human development' is opened up by Stanford University scientists.

Scientists have turned human stem cells into early-stage sperm and eggs in research that promises to give doctors an unprecedented insight into the causes of infertility.

The work will allow researchers to study human reproductive cells from the moment they are created in embryos through to fully-mature sperm and eggs.

Understanding the details of how sperm and egg cells grow will help scientists develop treatments for people who are left infertile when the process goes wrong. The research may also lead to treatments that can correct growth defects before a child is born.

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Russian Space Agency Plan To Build NUCLEAR Space Rocket

The Russian Space Agency is using 40-year-old booster rockets to transport astronauts to the International Space Station. Now they plan to go nuclear

From The Daily Mail:

Russia's space agency is planning to build a new spaceship with a nuclear engine, its chief announced yesterday.

Anatoly Perminov told a government meeting that the preliminary design could be ready by 2012 and would take nine years and cost £363million to build.

'The implementation of this project will allow us to reach a new technological level surpassing foreign developments,' Mr Perminov told a meeting discussing space technologies.

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Stellar Blast Is Record-Breaker

The redness of the afterglow is indicative of the event's distance

From The BBC:

Astronomers have confirmed that an exploding star spotted by Nasa's Swift satellite is the most distant cosmic object to be detected by telescopes.

In the journal Nature, two teams of astronomers report their observations of a gamma-ray burst from a star that died 13.1 billion light-years away.

The massive star died about 630 million years after the Big Bang.

UK astronomer Nial Tanvir described the observation as "a step back in cosmic time".

Professor Tanvir led an international team studying the afterglow of the explosion, using the United Kingdom Infrared Telescope (UKIRT) in Hawaii.

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The Root of Thought: What Do Glial Cells Do?

Glial Cells

From Scientific American:

Nearly 90 percent of the brain is composed of glial cells, not neurons. Andrew Koob argues that these overlooked cells just might be the source of the imagination.

Andrew Koob received his Ph.D. in neuroscience from Purdue University in 2005, and has held research positions at Dartmouth College, the University of California, San Diego, and the University of Munich, Germany. He's also the author of The Root of Thought, which explores the purpose and function of glial cells, the most abundant cell type in the brain. Mind Matters editor Jonah Lehrer chats with Koob about why glia have been overlooked for centuries, and how new experiments with glial cells shed light on some of the most mysterious aspects of the mind.

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