Tapping The Earth For Home Heating And Cooling

The pump room at an apartment building in Fitchburg, Massachusetts.
(Credit: MassInnovation)

From CNET:

Sue Butler decided it was time to cut the cord on fossil fuels. So when her aging gas furnace needed replacing, she turned to the Earth for a solution.

She installed a geothermal system--also called a ground-source heat pump, a water-source heat pump, or geo-exchange system--which recently started heating and cooling her Cambridge, Mass. home. Butler said she was motivated by environmental reasons and concerns over carbon monoxide from burning natural gas.

"It's not that much more expensive and I could manage it. And it means no more combustion and it gets the building off of carbon, which is urgent," she said.

Ground-source heat pumps have been around for decades but every year seem to attract more homeowners and organizations who are looking for alternatives to traditional space heating and cooling. They can hook into existing forced hot air and hot water systems but not steam heat.

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Wikipedia Reconsiders Editing Process

From CBS/CNET Tech News:

The User-Generated Resource Looks At Allowing Only Trusted Users To Immediately Publish Content Changes

(CNET) Just as Encyclopedia Britannica is moving in the direction of user-based entries, Wikipedia might soon be clamping down on theirs.

Wikipedia is apparently considering instituting a new editorial process that would put better safeguards in place and require all updates to be approved by a "reliable" user. The so-called Flagged Revisions process would allow registered, trusted editors to publish changes to the site immediately. All other edits would be sent to a queue and would not be published until they get approved by one of Wikipedia's trusted team of editors.

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How Real Science Works -- A Commentary

At Cern, the Large Hadron Collider could recreate conditions that last prevailed when the universe was less than a trillionth of a second old. Above is one of the collider's massive particle detectors, called the Compact Muon Solenoid. Valerio Mezzanotti for The New York Times

From The American Thinker:

The Large Hadron Collider is the largest collaborative scientific effort in history. It involves more than 2000 scientists from 34 countries as well as hundreds of universities and laboratories. It has taken 14 years to build at a cost of $8 billion and is scheduled to begin serious research work later this year.

And that work is mindboggling. The Collider seeks to accomplish nothing less than giving us a view of what the universe was like about one trillionth of a second after the Big Bang when the 4 fundamental forces in the universe – electromagnetism, the strong and weak nuclear forces, and gravitation – first split apart. By sending particle beams in opposite directions along a 17 mile underground circular track and accelerating them to near light speed while directing the particles with superconducting magnets to points where they are likely to collide, scientists hope to unravel some of the basic mysteries of the universe. Dark matter, extra dimensions, the nature of gravity, perhaps the fate of the universe itself could be revealed by these collisions and the subatomic particles they leave behind.

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How Long Will The World's Uranium Supplies Last?

YELLOWCAKE: There should be enough uranium to fuel the world's current fleet for more than 200 years. Courtesy of Cameco Corporation

From Scientific American:

How long will global uranium deposits fuel the world's nuclear reactors at present consumption rates?

Steve Fetter, dean of the University of Maryland's School of Public Policy, supplies an answer:
If the Nuclear Energy Agency (NEA) has accurately estimated the planet's economically accessible uranium resources, reactors could run more than 200 years at current rates of consumption.

Most of the 2.8 trillion kilowatt-hours of electricity generated worldwide from nuclear power every year is produced in light-water reactors (LWRs) using low-enriched uranium (LEU) fuel. About 10 metric tons of natural uranium go into producing a metric ton of LEU, which can then be used to generate about 400 million kilowatt-hours of electricity, so present-day reactors require about 70,000 metric tons of natural uranium a year.

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Finer Wine

Vintage Vino: Particle accelerators and electronic tongues ensure that
your rare wine is the real thing Grant V. Faint/Getty Images

From Popsci.com:

Spotting fake wine with an atom smasher, and growing perfect grapes

Robot Sommelier

Is your $30,000 bottle of Chateau Petrus Bordeaux truly a rare vintage, or is it just $30 merlot? Counterfeits plague rare-wine auctions, but researchers in Spain have built a handheld "electronic tongue" that detects them instantly. It measures the signature chemicals, acidity and sugar content in a drop of wine (typically one bottle from a case) and runs those against a database of certified vintage wines to catch fakes that might fool human tasters.

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Microsoft Steps Up Browser Battle

From The BBC News:

Microsoft has stepped up the battle to win back users with the latest release of its Internet Explorer browser.

The US software giant says IE 8 is faster, easier to use and more secure than its competitors.

"We have made IE 8 the best browser for the way people really do use the web," said Microsoft's Amy Barzdukas.

"Microsoft needs to say these things because it continues to lose market share to Firefox, Chrome and Safari," said Gartner analyst Neil MacDonald.

Recent figures have shown that Microsoft's dominance in this space has been chipped away by competitors.

At the end of last year, data from Net Applications showed the software giant's market share dropped below 70% for the first time in eight years to 68%.

Meanwhile Mozilla broke the 20% barrier for the first time in its history with 21% of users using its browser Firefox.

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Google's 'Online' GDrive Will Make The PC Redundant

The Google Drive would mean users would no longer have to worry about their hard drives crashing as their data could be accessed from any machine

From The Daily Mail:

The proposed new Google GDrive could kill off the personal computer, experts have warned.

The Google Drive service, which will reportedly launch later this year, allows users to store information online on Google's own servers rather than on the hard drive.

The process has been dubbed 'cloud computing' and is being seen as 'the most anticipated Google product so far'.

The GDrive would mean users would no longer have to worry about their hard drives crashing as their data could be accessed from any internet connection, a move that could effectively make PCs redundant.

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Internet Users Top 1 Billion, Most of Them Asian

From PC Magazine:

Internet metrics company comScore on Friday reported that the number of worldwide Internet users in December topped 1 billion users, the first time that barrier has been breached.

The key metric in the number of users is that most of them are from Asia, predominantly so: 41 percent, compared to 28 percent in North America and 18 percent in Europe. Although a sizeable percentage of Europe speaks English in some capacity (as does Asia), the numbers indicate that most of the world's Internet traffic will most likely be communicated using some non-English language. China, for example, had 179 million users, topping the list of wired countries; the U.S. was second, at 163 million. Japan, Germany, and the United Kingdom rounded out the top five.

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World's Fastest Car Goes Electric

Photo from Automotoportal

From Wired:

The guys at Shelby SuperCars, having taken down the mighty Bugatti Veyron to claim the title of fastest car on the planet, are challenging Tesla Motors for electro-supremacy with an EV it promises will put down 1,000 horsepower.

The boutique automaker caught our attention when it first mentioned the Ultimate Aero EV last summer, and now it's come through with some specs. They're pretty outlandish — zero to 60 in 2.5 seconds? 10-minute recharge time? — but we'll suspend our skepticism long enough to clear some space in the Autopia Fantasy Garage.

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Philadelphia’s Climate In The Early Days

From Watts Up With That?

January, 1790 was a remarkable year in the northeastern US for several reasons. It was less than one year into George Washington’s first term, and it was one of the warmest winter months on record. Fortunately for science, a diligent Philadelphia resident named Charles Pierce kept a detailed record of the monthly weather from 1790 through 1847, and his record is archived by Google Books. Below is his monthly report from that book.

JANUARY 1790 The average or medium temperature of this month was 44 degrees This is the mildest month of January on record. Fogs prevailed very much in the morning but a hot sun soon dispersed them and the mercury often ran up to 70 in the shade at mid day. Boys were often seen swimming in the Delaware and Schuylkill rivers. There were frequent showers as in April some of which were accompanied by thunder and lightning The uncommon mildness of the weather continued until the 7th of February.

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Secrets Of Stradivarius' Unique Violin Sound Revealed, Professor Says

What makes a Stradivarius' violin sound different from other violins?
(Credit: iStockphoto/José Carlos Pires Pereira)

From Science Daily:

ScienceDaily (Jan. 25, 2009) — For centuries, violin makers have tried and failed to reproduce the pristine sound of Stradivarius and Guarneri violins, but after 33 years of work put into the project, a Texas A&M University professor is confident the veil of mystery has now been lifted.

Joseph Nagyvary, a professor emeritus of biochemistry, first theorized in 1976 that chemicals used on the instruments – not merely the wood and the construction – are responsible for the distinctive sound of these violins. His controversial theory has now received definitive experimental support through collaboration with Renald Guillemette, director of the electron microprobe laboratory in the Department of Geology and Geophysics, and Clifford Spiegelman, professor of statistics, both Texas A&M faculty members. Their work has been published in the current issue of the scientific journal Public Library of Science (PloSONE).

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Obesity Caught Like Common Cold

From Live Science:

Yet another claim that a common and contagious virus is linked to some cases of obesity is in the news today.

Studies on humans show that 33 per cent of obese adults had contracted an adenovirus called AD-36 at some point in their lives, according to an article in the UK's Daily Express, whereas only 11 per cent of lean men and women have had the virus.

The research, to be presented in a BBC television special, is not big news to scientists, however. Further, some worry that the portrayal of obesity as something you simply catch could obscure the fact that overeating remains the biggest driver of obesity.

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Google Plans To Make PCs History

From The Guardian:

Industry critics warn of danger in giving internet leader more power

Google is to launch a service that would enable users to access their personal computer from any internet connection, according to industry reports. But campaigners warn that it would give the online behemoth unprecedented control over individuals' personal data.

The Google Drive, or "GDrive", could kill off the desktop computer, which relies on a powerful hard drive. Instead a user's personal files and operating system could be stored on Google's own servers and accessed via the internet.

The long-rumoured GDrive is expected to be launched this year, according to the technology news website TG Daily, which described it as "the most anticipated Google product so far". It is seen as a paradigm shift away from Microsoft's Windows operating system, which runs inside most of the world's computers, in favour of "cloud computing", where the processing and storage is done thousands of miles away in remote data centres.

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The MAC Is 25 Years Old Today

The Mac is twenty-five years old today. It’s arrival on the scene was announced by the above Ridley Scott commercial at the half time in Super Bowl XVIII.

More News On The Mac's 25th Birthday

Bites from the Apple: For the Rest of Us... -- End User

What Do Women Want?

Photo: Ryan McGinley/Team Gallery

From The New York Times:

Meredith Chivers is a creator of bonobo pornography. She is a 36-year-old psychology professor at Queen’s University in the small city of Kingston, Ontario, a highly regarded scientist and a member of the editorial board of the world’s leading journal of sexual research, Archives of Sexual Behavior. The bonobo film was part of a series of related experiments she has carried out over the past several years. She found footage of bonobos, a species of ape, as they mated, and then, because the accompanying sounds were dull — “bonobos don’t seem to make much noise in sex,” she told me, “though the females give a kind of pleasure grin and make chirpy sounds” — she dubbed in some animated chimpanzee hooting and screeching. She showed the short movie to men and women, straight and gay. To the same subjects, she also showed clips of heterosexual sex, male and female homosexual sex, a man masturbating, a woman masturbating, a chiseled man walking naked on a beach and a well-toned woman doing calisthenics in the nude.

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Why Did Humans Migrate To The Americas?

From nps.org

From Live Science:

The Americas were the last (well, second-to-last if you count Antarctica) continents to be inhabited by early humans. Archaeologists estimate that people entered North America by crossing over the Bering Strait, which back then was a wide swath of land, about 15,000 years ago.

In other words, people got here by walking a very long distance.

Our image of this major migration is fanciful. When I teach about the peopling of the Americas, I show a slide of people purposefully trekking in a straight line on a tundra from Siberia to Alaska, as if there was some destination on the other side and the only way to get there was to follow the leader, one behind the other.

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What Happens When Satellites Fall

Artist Interpretation of a GPS satellite.
Source: image courtesy of NASA

From Yahoo News/Space.com:

The recent trials of an out-of-control communications satellite and a defunct, leaky Soviet-era spacecraft toting its own nuclear reactor call up the question: What exactly happens when satellites die in space?

There are actually a few possibilities, some good, and others not so much.

Bury the dead

If mission controllers spot a glitch in time, they can force a still-functioning satellite to fire its engines and reach a so-called "graveyard orbit" a few hundred miles above its initial flight path in order to safeguard its neighboring spacecraft against possible damage.

That's what engineers are trying to do for the telecommunications satellite Astra 5A, which inexplicably failed on Jan. 15 after 12 years of operation. The satellite has since been adrift in space, moving out of its geostationary position about 22,300 miles (35,888 km) above Earth and is moving eastward along its orbital arc.

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The Plot To Kill Google

From Wired:

When Google's lawyers entered the smooth marble hallways of the Department of Justice on the morning of October 17, they had reason to feel confident. Sure, they were about to face the antitrust division—an experience most companies dread—to defend a proposed deal with Yahoo. But they had to like their chances. In the previous seven years, only one of the mergers that had been brought here had been opposed. And Google wasn't even requesting a full merger. It just wanted the go-ahead to pursue a small deal that it was convinced would benefit consumers, the two companies, and the search-advertising market as a whole. Settling around a large oval table in the conference room, the attorneys from Google and Yahoo prepared to make their arguments. Google wanted to serve its ads for certain search terms on Yahoo's pages in exchange for a share of the revenue those ads generated. It already had similar arrangements with AOL, Ask.com, and countless other Web sites. And the deal wasn't exclusive or permanent.

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Ouch! Can You Really Break Your Penis?

BANANA FRACTURE: There is a medical condition called penile fracture, which refers to tearing of tissue inside the penis. Image of banana sign by dlev1979 via flickr

From Scientific American:

The penile condition recently featured on the TV medical drama Grey's Anatomy is real and, sorry guys (and girls), not uncommon.

Ever since heartthrob television doctor Mark Sloan had a sexual mishap on last night's episode of TV hit show Grey's Anatomy, bloggers around the globe have been buzzing about a bizarre and horrifying condition called "broken penis syndrome". For those who didn't catch last night's hot and steamy love scene between Sloan (played by actor Eric Dane) and "intern" Lexie Grey (Chyler Leigh), be advised: it ended painfully—very painfully. At least for Sloan, who suffered a severe injury to his manhood, which prompted a slew of rumors among hospital staff about which woman "broke Sloan's penis," according to ABC's online recap of the episode.

Given that there are no bones in the penis, can it really break? It turns out there is an unfortunate injury termed "penile fracture" that can indeed occur during sexual intercourse. We asked Hunter Wessells, chair of the urology department at the University of Washington School of Medicine in Seattle (also home to the show's Grace Hospital), to describe the condition and how it can happen.

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No More Tourist Space Flights

Russia will stop offering space tourism flights as astronauts from Europe, Canada and Japan are eager to start scientific research on the station (Photo from The Daily Mail)

Dreams Of Cosmic Holidays Dashed As Russia Announces End Of Tourist Flights To Space Station -- The Daily Mail

If you had been saving up £10million to take a trip into space, it appears your dream holiday plans have been dashed.

Russia have announced they won't be sending any more tourists to the International Space Station after 2009 because of plans to double the station's crew to six people.

Roscosmos chief Anatoly Perminov said U.S software designer Charles Simonyi, who has already flown once to the station, will be the last private tourist when he blasts off from the Baikonur cosmodrome in March.

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