A Uranium Shortage Could Derail Plans To Go Nuclear To Cut Carbon Emissions

From The Economist:

THERE is an awesome amount of energy tied up in an atom of uranium. Because of that, projections of the price of nuclear power tend to focus on the cost of building the plant rather than that of fuelling it. But proponents of nuclear energy—who argue, correctly, that such plants emit little carbon dioxide—would do well to remember that, like coal and oil, uranium is a finite resource.

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What Happens When An Enormous Star Blows Up?

Kepler's supernova remnant. The explosion of a star is a catastrophic event. The blast rips the star apart and unleashes a roughly spherical shock wave that expands outward at more than 35 million kilometers per hour (22 million mph) like an interstellar tsunami. What might happen when a really gargantuan star -- one hundreds of times bigger than our sun -- blows up? (Credit: NASA)

From Science Daily:

Science Daily (Dec. 4, 2009) — What happens when a really gargantuan star -- one hundreds of times bigger than our sun -- blows up? Although a theory developed years ago describes what the explosion of such an enormous star should look like, no one had actually observed one -- until now.

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Ancient Volcano's Devastating Effects Confirmed

This satellite image shows smoldering underground fires that took place at Toba in 1997. A devastating volcanic eruption occurred at the site roughly 73,000 years ago. Credit: NASA

From Live Science:

A massive volcanic eruption that occurred in the distant past killed off much of central India's forests and may have pushed humans to the brink of extinction, according to a new study that adds evidence to a controversial topic.

The Toba eruption, which took place on the island of Sumatra in Indonesia about 73,000 years ago, released an estimated 800 cubic kilometers of ash into the atmosphere that blanketed the skies and blocked out sunlight for six years. In the aftermath, global temperatures dropped by as much as 16 degrees centigrade (28 degrees Fahrenheit) and life on Earth plunged deeper into an ice age that lasted around 1,800 years.

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Richard Branson Joins The Space Race

An artist's impression of Virgin Galactic's SpaceShipTwo transported by WhiteKnightTwo.

From The Guardian:

For $200,000, you too could soon be blasting out of the Earth's atmosphere thanks to Richard Branson. But is this really a revolution in space travel?

The Mojave desert, 160km north of Los Angeles, is best known for its unforgiving weather and ancient, almost alien, landscape. On Monday, however, it will play host to a very modern spectacle when Sir Richard Branson unveils the latest stage of his scheme to transform space travel into a cheap, commercial proposition.

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Both Of NASA's Mars Orbiters Are Down For The Count

Engineers are working to restore NASA's two Mars orbiters, Mars Odyssey (shown) and Mars Reconnaissance Orbiter, to normal operation (Illustration: NASA/JPL)

From New Scientist:

The Red Planet is experiencing a partial radio blackout this week, as both of NASA's Mars orbiters have been felled by technical glitches. Until one of the probes can be brought back online later this week, the outages will delay operation of the twin Mars rovers, which use the orbiters to efficiently relay data back to Earth.

The main blow to rover operations comes from NASA's Mars Odyssey, which reached the Red Planet in 2001 and has been the prime communications relay for the rovers Spirit and Opportunity since they landed in 2004.

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Intel Shows 48-Core Processor For Research

From Gadget Lab:

Intel’s six- and eight-core processors are the fastest chips that consumers can get their hands on. But if you are among the research elite, the company has a new experimental chip that can offer nearly 20 times the computing power.

Intel showed an 48-core processor nicknamed the “single-chip cloud computer” that consumes about the same power as desktop processors available currently. The fully programmable 48 processing cores are the most Intel has ever had on a single silicon chip, says the company.

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New Technique To "Revolutionise" Astronomy

Credit: iStockphoto

From Cosmos:

SYDNEY: There is a frustrating amount of light pollution in the night sky. But a new invention could "revolutionise" the way astronomers see the stars, said an Australian-German collaboration last night.

"Once up and running it will exceed the power of the James Webb telescope [which will be the successor to Hubble]," said project leader, astronomer Joss Bland-Hawthorn from the University of Sydney in Australia.

Space telescopes are able to view the stars without the interference of the Earth's atmosphere. On Earth, however, interference from the atmosphere can hinder astronomical 'seeing'.

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World’s Tallest Building, Burj Dubai Tower, Opens As A Golden Era Closes

From Christian Science Monitor:

Dubai Tower opens next month. But will this crowning jewel also be the city's high watermark?

Burj Dubai Tower, the world’s tallest building, is a spire of superlatives.

The 160-story skyscraper will open on January 4, the fourth anniversary of Sheikh Mohammed bin Rashed al-Maktoum’s rule in Dubai.

Under the Sheikh, Dubai has seen a boom in record breakers, impressive firsts, and baffling spectacles. For example, the city is or will be home to the world’s first refrigerated beach, a twirling tower, the world’s largest arch-supported bridge, and artificial islands in the shape of the world map.

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Human Genetic Revelations Coming In 2010

From Future Pundit:

Writing in The Economist Geoffrey Miller says in 2010 human genetic research results will show some politically incorrect beliefs about human nature are correct. Looking ahead to 2010 and beyond I am reminded of Dr. Elisabeth Kubler-Ross's 5 stages of death. I think these apply to beliefs as well.

Human geneticists have reached a private crisis of conscience, and it will become public knowledge in 2010. The crisis has depressing health implications and alarming political ones. In a nutshell: the new genetics will reveal much less than hoped about how to cure disease, and much more than feared about human evolution and inequality, including genetic differences between classes, ethnicities and races.

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Forensics Machine To Boost Hunt For Bomb Fragments

Millimetre-sized fragments are examined in fume cabinets.

From BBC News:

The guidance for visitors informs us that we will receive a warning prior to the detonation of an explosive device.

It urges us not to be alarmed and to "be prepared for a bang".

The advice is welcome, if not entirely unexpected. It's a reminder of the vital and hazardous work carried out here at the UK's Forensic Explosives Laboratory (FEL).

Situated in Kent's leafy North Downs, FEL is the world's oldest forensic science laboratory, established 130 years ago.

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Bad Teeth Tormented Ancient Egyptians

Photo: The mummy of Seqenenre Tao II, shown here, was among 3,000 specimens analyzed for cause of death. The mask shows the marks from the axe blow and the two spear thrusts that brought about his death. Getty Images

From Discover News:

A systematic review of more than 3,000 mummy analyses reveal ancient Egyptians suffered from periodontal diseases, abscesses and cavities.

Worn teeth, periodontal diseases, abscesses and cavities tormented the ancient Egyptians, according to the first systematic review of all studies performed on Egyptian mummies in the past 30 years.

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Synthetic Magnetic Fields 'Trick' Neutral Atoms Into Acting As If Electrically Charged

A pair of laser beams (red arrows) impinges upon an ultracold gas cloud of rubidum atoms (green oval) to create synthetic magnetic fields (labeled Beff). (Inset) The beams, combined with an external magnetic field (not shown) cause the atoms to "feel" a rotational force; the swirling atoms create vortices in the gas. (Credit: JQI)

From Science Daily:

Science Daily (Dec. 3, 2009) — Achieving an important new capability in ultracold atomic gases, researchers at the Joint Quantum Institute, a collaboration of the National Institute of Standards and Technology (NIST) and the University of Maryland, have created "synthetic" magnetic fields for ultracold gas atoms, in effect "tricking" neutral atoms into acting as if they are electrically charged particles subjected to a real magnetic field.

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Are Large Dams Altering Extreme Weather Patterns?

Hoover Dam

From Live Science:

Large dams may cause shifting regional weather extremes.

This finding is causing scientists to wonder if aging dams around the world can withstand the extreme weather events they may inadvertently generate.

It was nearly 75 years ago that scientists first speculated that large dams could vastly transform local climate. Weather results from the interaction of warm and cool air, and dams can hold vast reservoirs of water that can influence the heat and moisture of the air above them. Dams also can radically alter irrigation patterns in the surrounding land, impacting their climate patterns as well.

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Antarctica Was Climate Refuge During Great Extinction

From New Scientist:

The cool climate of Antarctica was a refuge for animals fleeing climate change during the biggest mass extinction in Earth's history, suggests a new fossil study. The discovery may have implications for how modern animals will adapt to global warming.

Around 250 million years ago, at the end of the Permian period, about 90 per cent of land species were wiped out as global temperatures soared. A cat-sized distant relative of mammals, Kombuisia antarctica, seems to have survived the extinction by fleeing south to Antarctica.

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For 2010, IDC Predicts An Apple iPad And Battles In The Cloud

From CNET:

Apple brings out an iPad digital tablet. Netbooks move upscale. And IBM buys Juniper Networks.

Those predictions for next year, and others, are being presented on Thursday by the technology research firm IDC.

DC's entry in the year-end forecasting sweepstakes doesn't lack for detail. There will be 300,000 iPhone applications by the end of next year, nearly triple the current number, according to IDC. There will be 50,000 to 75,000 Google Android applications, up from about 10,000.

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The Nuclear Football

The nuclear football being carried by a Coast Guard officer at the United Nations, 2009.
Photo from Wikipedia

From Wikipedia:

The Nuclear Football (also called the Atomic Football, President's Emergency Satchel, The Button, The Red Button, The Black Box, or just The Football) is a black briefcase meant to be used by the President of the United States of America to authorize a nuclear attack while away from fixed command centers, such as the White House Situation Room. It functions as a mobile hub in the strategic defense system of the United States.

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My Comment: A friend of mine emailed me this .... it is quite interesting.

Space Exploration Takes Too Long For Democracies?

From Future Pundit:

Will China's lack of democracy give it a leg up in the next wave of human space exploration? Michael Hanlon argues the next big step in space exploration takes too much time for a democracy to fund it.

It may simply be that space exploration is incompatible with US democracy. A Mars shot would take four presidential terms at least. No president will ask taxpayers to fund something he won't be around to take credit for.

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Can Saharan Solar Power Save Europe?

Is it a mirage? Some experts think so, others say it will become a reality. AP

From Spiegel Online:

Some say it's a foolish fantasy, others believe it has the potential to save the world from the effects of climate change. The German-led Desertec initiative to build a massive solar thermal power plant in the Sahara Desert has both advocates and critics. SPIEGEL ONLINE looks at the current state of play.

For years, the idea of generating solar power for Europe in the Sahara was dismissed as pure fantasy. But then all of sudden it was happening, and Desertec was making headlines worldwide.

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Cool Find In Hunt For Exoplanets

Image: The planet, called GJ758B, may well have a sister, GJ758C

From The BBC:

Astronomers have published an image of the coolest planet outside our solar system that has been pictured directly.

The new find is more similar to our own Solar System than prior pictured exoplanets, in terms of the parent star's type and the planet's size.

However, the surface temperature is a scorching 280-370C, and could still prove to be a brown dwarf star.

The results, published in Astrophysical Journal, were obtained by a new camera on the Subaru telescope in Hawaii.

Among more than 400 known exoplanets, only 10 have been imaged directly, rather than detecting them via measurements of their parent stars' light or movement.

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The Sun: Falling Into An Even Deeper Funk

From Watts Up With That?

With Climategate sucking all the oxygen out of the blogosphere, we’ve neglected some of our regular reporting duties here at WUWT.

Thanks to Paul Stanko, who has been tracking sunspots for WUWT for awhile now who writes in with this update. It looks like we’ll soon surpass 2008 for the number of spotless days. – Anthony

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