Saturday, September 4, 2010

India To Build World's Largest Solar Telescope

Photo: Currently, the world's largest solar telescope is the McMath-Pierce Solar Telescope, with a diameter of 1.6 metres in Kitt Peak National Observatory at Arizona in the US.

From Space Daily:

India is inching closer towards building the world's largest solar telescope in Ladakh on the foothills of the Himalayas that aims to study the sun's microscopic structure.

The National Large Solar Telescope (NLST) project has gathered momentum with a global tender floated for technical and financial bidding by the Bangalore-based Indian Institute of Astrophysics (IIA).

Read more ....

Health Checkup: Who Needs Organic Food?

Foodpix / Getty Images
Organic food comes with real health benefits and significant costs. TIME looks at both sides of the debate

From Time Magazine:

Looking for a quick way to feel lousy about yourself? Then forget the idea of a healthy diet and just eat what your body wants you to eat. Your body wants meat; your body wants fat; your body wants salt and sugar. Your body will put up with fruits and vegetables if it must, but only after all the meat, fat, salt and sugar are gone. And as for the question of where your food comes from — whether it's locally grown, sustainably raised, grass-fed, free range or pesticide-free? Your body doesn't give a hoot.

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Yet Another Human Job Is Replaced By A Robot


EMILY To the Rescue: An Automated Lifeguard -- The Economist

Yet another human job is replaced by a robot.


BIG crowds, strong surf and powerful rip currents are only a few of the obstacles that lifeguards must overcome to keep swimmers safe. Strong winds can pull many bathers out to sea simultaneously, overwhelming the guards if there are only a few of them. And, since average swimming speed is about 3kph (2mph) even a single rescue mission can take more than half an hour.

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Stephen Hawking: Ten Pearls Of Wisdom

Professor Stephen Hawking Photo: DISCOVERY CHANNEL

From The Telegraph:

After Professor Stephen Hawking apparently rubbished the idea of a God, claiming the Big Bang was an inevitable result of physics, here are ten of our favourite quotes.


Stephen Hawking on why the universe exists:

"If we find the answer to that, it would be the ultimate triumph of human reason – for then we would know the mind of God."

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Kepler Probe Ffinds Two Saturn-Sized Planets Orbiting A Single Star 2,000 Light Years Away

An artist's impression of the two Saturn-sized planets as they orbit the same star

From The Daily Mail:

Two giant Saturn-sized planets have been spotted passing in front of the same star, Nasa scientists announced today.

It is the first time more than one planet has ever been discovered 'transiting' a single star.

The two planets were discovered by the space telescope Kepler and will give scientists vital information about how planets were formed and how they interact with each other.

Read more ....

Scientists Figure Out Magical 'Banana' Free Kick



From The CBC:

Thirteen years after Roberto Carlos stunned onlookers with his amazing "banana" free kick that seemed to defy the law of physics, scientists have finally worked out how he did it.

In what many people regard as the best free kick ever, the Brazil defender struck the ball with the outside of his left foot 35 yards out, bending it around the outside of France's three-man wall during a friendly tournament in Lyon in 1997.

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Friday, September 3, 2010

Water in Earth's Mantle Key To Survival Of Oldest Continents

This is an image of a sample of cratonic mantle root from Kimberley, South Africa. The rock consists of dark green olivine, whitish-green enstatite, emerald green diopside and purple garnet. (Credit: David R. Bell / ASU)

From Science Daily:

ScienceDaily (Sep. 2, 2010) — Earth today is one of the most active planets in the Solar System, and was probably even more so during the early stages of its life. Thanks to the plate tectonics that continue to shape our planet's surface, remnants of crust from Earth's formative years are rare, but not impossible to find. A paper published in Nature Sept. 2 examines how some ancient rocks have resisted being recycled into Earth's convecting interior.

Read more ....

High-Tech Effort Underway to Protect Magna Carta

One of four existing copies of the 1297 Magna Carta. Credit: National Archives & Records Administration

From Live Science:


The Magna Carta helped form the foundation for modern English and U.S. law. Now one of two copies known to exist outside England is headed for a special new case to preserve it.

The very first Magna Carta dates to 1215, when English barons forced King John to write down the traditional rights and liberties of the country's free persons. A copy of the Magna Carta signed by King Edward I in 1297 currently resides within a helium-filled casement at the National Archives Building in Washington. But the medieval document is scheduled for a temporary removal in 2011 so it can be re-measured for a new case filled with argon.

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NASA Flies First Drone Over Hurricane


From Wired Science:

Hurricane Earl is waning as it moves northward up the east coast of the United States. Some of the first researchers to notice the weakening had front row seats, watching the eye of the hurricane via drone flights.

In addition to the usual cadre of satellites, NASA is using a small fleet of unmanned aircraft into, over and around the hurricane as it tracks north from the Caribbean. While flying into a hurricane is nothing new, Earl is the first hurricane that NASA has observed using their unmanned Global Hawk observation aircraft (pictured above).

Read more ....

Canadian To Command Space Station In 2013

From Space Daily:

Astronaut Chris Hadfield in 2013 will become the first Canadian to command the International Space Station (ISS), the Canadian Space Agency announced Thursday.

Hadfield, 51, will rocket on his third trip into space aboard a Russian Soyuz spacecraft in December 2012 and assume command of the station during the second part of a six-month mission.

Read more ....

Why Do Heavy Drinkers Outlive Nondrinkers?

Jodi Cobb / National Geographic Creative / Getty Image

From Time Magazine:

One of the most contentious issues in the vast literature about alcohol consumption has been the consistent finding that those who don't drink tend to die sooner than those who do. The standard Alcoholics Anonymous explanation for this finding is that many of those who show up as abstainers in such research are actually former hard-core drunks who had already incurred health problems associated with drinking.

Read more ....

My Comment: I am convinced .... and yes .... I need a drink.

One Reason Dieting Does Not Work


That’s The Way The Cookie Crumbles -- The Economist

One reason dieting does not work.

IF, BY chance, you are served an unusually large slice of pizza, compared with what others appear to be getting, would that experience incline you, some minutes later, to eat more cookies or fewer when platefuls came your way? That depends, it turns out, on whether you are on a diet. Those who are not eat fewer cookies, whereas those who are see the excessive pizza as a licence to pig out. It is a demonstration of what Janet Polivy, a psychologist at the University of Toronto, refers to as the “what the hell” effect—a phenomenon familiar from real life to which Dr Polivy has given scientific respectability, most recently in a paper published in the latest edition of Appetite.

Read more ....

Why Food Is Costing Us The Earth

Coffee prices have risen sharply Photo: SIMON RAWLES

From The Telegraph:


The fight is on over how to solve our food crisis, but if we choose the wrong food policy at this juncture there could be no going back, says Rose Prince.

Hardly a morning passes without food making the headlines. This week has brought us the burger that thinks it's a pizza and news that eating asparagus makes you stay slim (fingers crossed it's the type covered in melted butter). And we heard that, if you eat pickled squid guts and single cream together, it tastes like strawberry shortcake.

Read more ....

Samsung Galaxy Tab: Firm Joins Forces With Google By Launching Tablet to Take On Apple's iPad

iPad killer? People compare the performance of Apple's iPad (L) and Samsung's Galaxy Tab tablet devices at the IFA consumer electronics fair in Berlin today

From The Daily Mail:

Apple faces a killer blow to its iPad after Samsung unveiled its own device amid rumours it could could be just half the price.

The Samsung Galaxy Tab with its seven inch touchscreen is smaller than the iPad, however it matches the Apple device in virtually all other functions.

Initial details suggest some aspects of the Tablet are even more sophisticated than the Apple creation.

At the same time, Apple faces competition from other technology giants which are racing to get their own touchscreen tablets into the shops before Christmas.

Read more ....

My Comment:
I prefer the size of the iPad, but others prefer something smaller. At last there is choice now, and that is a good thing.

Doctors Seek Way To Treat Muscle Loss

Participants in a University of Florida study use ankle weights to increase strength and balance. Researchers say muscle deterioration is a major reason some of the elderly lose mobility and cannot live independently. Steve Johnson for The New York Times

From The New York Times:

Bears emerge from months of hibernation with their muscles largely intact. Not so for people, who, if bedridden that long, would lose so much muscle they would have trouble standing.

Why muscles wither with age is captivating a growing number of scientists, drug and food companies, let alone aging baby boomers who, despite having spent years sweating in the gym, are confronting the body’s natural loss of muscle tone over time.

Read more
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Stephen Hawking Says There's No Theory Of Everything


From New Scientist:

Craig Callender, contributor

Three decades ago, Stephen Hawking famously declared that a "theory of everything" was on the horizon, with a 50 per cent chance of its completion by 2000. Now it is 2010, and Hawking has given up. But it is not his fault, he says: there may not be a final theory to discover after all. No matter; he can explain the riddles of existence without it.

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The Secret To The Immortality Of McDonald's Food

Salon/iStockphoto/xxxnake

From Salon:

The chain's burgers can resist rot for years. Scientists explain why they have the shelf life of the undead.

Ever since Morgan Spurlock held up that jar of mysteriously well-preserved fries in "Super Size Me," the list of exhibits in the McDonald’s museum of food-that-refuses-go-bad has grown exponentially. The latest entrant is the Happy Meal Project, a burger and a packet of fries that have soldiered on undecayed for 143 days.

Read more ....

My Comment: I have a confession .... I am addicted to sausage egg McMuffins. Don't know why .... just need a fix once in a while.

Hubble Observations of Supernova Reveal Composition Of 'Star Guts' Pouring Out

A team of astronomers led by the University of Colorado at Boulder is charting the interactions between Supernova 1987A and a glowing gas ring encircling the supernova remnant known as the "String of Pearls." (Credit: NASA)

From Science Daily:

ScienceDaily (Sep. 2, 2010) — Observations made with NASA's newly refurbished Hubble Space Telescope of a nearby supernova are allowing astronomers to measure the velocity and composition of "star guts" being ejected into space following the explosion, according to a new study led by the University of Colorado at Boulder.

Read more ....

Mass Extinction Threat: Earth On Verge of Huge Reset Button?

From Live Science:

Mass extinctions have served as huge reset buttons that dramatically changed the diversity of species found in oceans all over the world, according to a comprehensive study of fossil records. The findings suggest humans will live in a very different future if they drive animals to extinction, because the loss of each species can alter entire ecosystems.

Read more ....

China's Militarization of Space Continues


Chinese Satellite Test -- Inside The Ring, Washington Times

China recently conducted a space test involving two satellites that rendezvoused several hundred miles above Earth in a maneuver analysts say will likely boost Beijing's anti-satellite weapons program.

Read more ....

More News On China's Space Program

Two Chinese Satellites Have Close Encounter in Orbit -- Discovery News
Close Encounters of the Worrisome Kind? Chinese Satellites Meet in Space -- Discover Magazine
China’s Secret Satellite Rendezvous ‘Suggestive of a Military Program’ -- The Danger Room
Satellite pulls new manoeuvre in space -- Toronto Sun
Two Chinese Satellites Rendezvous in Orbit -- Universe Today
Chinese On-orbit Rendezvous Analyzed [The Space Review] -- Space News
Two Chinese satellites rendezvous in orbit -- New Scientist