Haiti Earthquake May Have Released 250 Years of Seismic Stress | 80beats

Haiti_Quake_MapAs Haiti reels from yesterday’s massive earthquake and its continued aftershocks, and nations rush to put rescue efforts together, scientists analyzing the seismic event say this disaster may have been a long time coming.

The earthquake in Haiti had a preliminary magnitude of 7.0 and it appeared to have occurred along a strike-slip fault, where one side of a vertical fault slips horizontally past the other, scientists say [AP]. This fault, called the Enriquillo-Plantain Garden fault, may have been slowly building up pressure since the major 1760 earthquake that struck Haiti.

“It’s been locked solid for about the last 250 years,” said Dr Roger Musson from the British Geological Survey (BGS). “It’s been gathering stress all that time as the plates move past each other, and it was really just a matter of time before it released all that energy” [BBC News]. Chillingly, scientists led by Paul Mann warned just two years ago that such a massive quake could strike Hispaniola, the island Haiti shares with the Dominican Republic. But there wasn’t much the impoverished Caribbean nation could do with that information, Mann said: “The problem with these kinds of strikes is that they can remain quiescent — dormant — for hundreds of years,” he said Tuesday evening. “So it’s hard to predict when they’ll occur” [CNN].

The BBC reports that the fault system of which Enriquillo-Plantain is a part normally moves less than an inch per year as the North American and Caribbean tectonic plates slide by each other, but this earthquake may have caused the earth’s surface along the fault line to offset by as much as three feet.

The fact that the Enriquillo-Plantain appears to have released all its fury at once raises further worry for people living near strike-slip fault zones—California’s San Andres fault also falls under this category. However, Caribbean geology expert Grenville Draper says that the Hispaniola fault system doesn’t behave exactly like California’s. The movement along the Hispaniola fault is relatively small compared with plates moving underground in California, Draper said. The effect would be less-frequent earthquakes, but relatively large ones when they do occur [Miami Herald].

Related Content:
80beats: Science Via Twitter: Post-Earthquake Tweets Can Provide Seismic Data
80beats: Major Earthquakes Can Weaken Faults Around the Globe
80beats: A Major Quake Could Release Plutonium from Los Alamos Lab
The Intersection: Ways to Support the Relief Effort in Haiti

Image: Wikimedia Commons / The Weatherman


Libertarian Party of Indiana to Staff Booth at Indy 1500 Gun and Knife Show

The Libertarian Party of Indiana will have a large presence at the State's largest gun and knife show, the Indy 1500 Gun and Knife Show at the Indiana State Fairgrounds. Paul Morrell (Rush County Temporary Chair), Jerry Titus (Howard County Chair), and Tim Maguire (Marion County Chair) have collaborated to organize party members to promote the libertarian message of upholding the full Bill of Rights to the thousands in attendance.

Visit the Indy 1500 Gun and Knife Show's website at http://www.indy1500.com/.

When:

January 15th-16th-17th

Friday 2:00 PM to 8:00 PM

Saturday 8:00 AM to 6:00 PM

Sunday 9:00 AM to 4:00 PM.

Where:

The Indiana State Fairgrounds

1202 East 38th Street

Indianapolis, Indiana 46205

Google to China: No More Internet Censorship, or We Leave | 80beats

googlechinaAre the world’s most popular search engine and the world’s most populous country headed for a breakup? That’s the word reverberating around the Internet today after Google said it would no longer put up with the Chinese government’s demands to censor the Internet and the rampant hacking attempts against it, which could result in the company ending its Chinese operations.

The announcement came as a stunning reversal for Google, which had capitulated to the government’s wishes to gain access to China’s fast-growing population of Internet users. Since arriving in 2006 under an arrangement with the government that purged its Chinese search results of banned topics, Google has come under fire for abetting a system that increasingly restricts what can be read online [The New York Times].

The standoff comes as no surprise to China watchers, however. “The idea that Google would be allowed to run an uncensored search engine would be inconsistent with everything the Chinese government has done and every single statement it has made over the past year” about the need for controls on the internet, says Rebecca MacKinnon, an expert on new media in China [Christian Science Monitor]. In fact, the news of this fight over censorship remains itself censored in China, The New York Times reports. Early reports in the Chinese news media mentioned terms like “free speech,” but those quickly disappeared.

The details of Google’s other grievance—China-based hacks against it—haven’t all come to light yet. But these sophisticated attacks against more than 30 firms, mostly Silicon Valley-based, appear to have targeted the Gmail accounts of Chinese humans right activists. Perhaps that was the last straw for Google; an anonymous source told Wired.com that the company already deals with the Chinese government harassing its own people over there. “[Google is] really concerned about their safety and feels that there is a very real possibility that they will be interrogated,” the source said. “They have been [interrogated] numerous times before, and this time they could be arrested and imprisoned” [Wired.com].

What happens if Google actually breaks with Beijing? Baidu, China’s number one search engine, will benefit, but it won’t be the only one. “With the easing of competition from Google, it’s actually going to benefit everybody. The small operators now see an opportunity to gain some market share,” said Elinor Leung, an analyst at CLSA. [Wall Street Journal]. But what’s good for the market share of Chinese search engines may not be good for Chinese Internet users. Google’s pullout could hamper the fight for Web freedom there and elsewhere, leaving governments with even more power to set the rules about how much of the Internet people within their borders can see.

That’s if Google follows through on its threat and ends its Chinese operations. As the Wall Street Journal reports, an Irish betting site is already taking wagers whether the company will do it by 2012, and the odds aren’t good—the bookies seem to think China is too tempting a market to surrender.

Related Content:
80beats: Is Google the Guardian Angel of Rainforests?
80beats: Googlefest Can’t Stop, Won’t Stop: 3 New Ways Google Will Take Over Your Life
80beats: China Bans Electroshock Therapy for “Internet Addiction”
80beats: China’s Internet Users Force Government to Back Down on Censorship

Image: Wikimedia Commons / M. Weitzel


Scientists Versus Mountaintop Removal Mining–A Communications Coup | The Intersection

My latest Science Progress blog post looks at the case of a recent Science paper that has had a dramatic impact on the debate over so-called “MTR”–an extremely destructive and invasive form of mining that literally takes the caps off of mountain peaks to access the coal inside them. In essence, it’s the story of scientists being willing to stand up and say what they think about policy, and having a real influence as a result–a case study in how to make scientific information have its maximal impact. An excerpt:

To me, the most intriguing question is this: How did the 12 environmental scientists on the Science paper managed to achieve such an impact? Did they plan for it, or was it just fortuitous?

So I called up Margaret Palmer of the University of Maryland Center for Environmental Science, the article’s lead author. I was something like her 30th media interview on the topic, but unlike other journalists, I didn’t want to ask about either the policy or the science of MTR. Rather, I inquired about the communication strategy that had been employed to disseminate news about her paper. And thus unfolded a striking story of a group of scientists, with extremely important research on their hands, doing everything pretty much right to ensure its maximal impact.

As Palmer explained, the project out started as pure science. Her team of researchers began by synthesizing a wide array of data from different scientific fields on the consequences of MTR, in a more thorough way than had ever been done before—a process that consumed many months in the peer review process. But as the truly alarming results started to manifest, members of the scientists’ group soon coalesced around a strong, unanimous position about what they were finding. “Rather than just reporting the science,” says Palmer, “we all agreed that the consequences were so huge, we were very comfortable saying, ‘This just has to stop.’”

Resolved upon its message, the team then sought to disseminate it….

To hear more of the story, you can read the full post here.


California Beach Tradition Threatened

It’s a time-honored tradition. After sunset, Californians gather at the beach and build a bonfire in one of the concrete fire pits that dot the beaches all up and down the coast. Whether the focus of a beach party, a night of star-gazing, or an impromptu hot dog and marshmallow roast, the pits are a cultural phenomenon in California.

Now that tradition is in danger of disappearing forever. Last week, the ranks of State-maintained fire pits were reduced when the following seven were removed due to budget shortfalls

  • Bolsa Chica State Beach, Huntington Beach
  • Crystal Cove State Park, Newport Beach
  • Doheny State Beach, Dana Point
  • Huntington State Beach, Huntington Beach
  • San Onofre State Beach, near San Clemente
  • Silver Strand State Beach, on San Diego’s Coronado Island
  • South Carlsbad State Beach, Carlsbad

California cities are following suit. San Diego recently ordered the removal of 186 concrete fire pits from its beaches and shoreline parks, including those located in Mission bay and on the beaches of La Jolla, Mission Beach, Pacific Beach, and Ocean Beach.

Those in favor of the money saving measures insist the removal of fire pits is a good idea, since they are regularly used to burn trash that ends up littering the beach, and bonfire parties can often get out of control. Opponents say the move will forever alter the essence of the city. City and State officials, who seem generally pleased to be rid of the onerous task of maintaining the pits, point out that people are still welcome to build fires in their personal barbeque grills.

Video Credit: TVman1981

Article by Barbara Weibel at Hole In The Donut Travels

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Live Coverage of Suborbital Scientist-Astronaut Training Course – Day Two

Photo: Alan Stern (center, green flight jacket) Twittering from the altitude chamber on Tuesday. More photos from Tuesday's activities are posted here. An embedded viewer will appear when we stream live centrifuge runs today around 11 am EST. This link points to the webcast location.

Environmental Tectonics Corporations The NASTAR(R) Center Commences Space Training for Prospective Scientist-Astronauts

"The Suborbital Scientist-Astronaut Training Course [Tuesday/Wednesday, 12-13 Jan] has been developed by The NASTAR Center and is organized by Dr. Alan Stern and Dr. Dan Durda of the Southwest Research Institute (SwRI). "

Keith's note: You can follow events at the workshop at OnOrbit.com/suborbital or at The pre-flight of a sub-orbital scientist (Joe Hill)

On Twitter you can follow @thenastarcenter, NASAWatch or track all Tweets via #suborbital

You can also check the Suborbital Science page at Facebook and TheNASTARCenter on YouTube

- ETC's The NASTAR(R) Center Announces Winner of Student Patch Design Contest Outreach Effort, earlier post- NASA Solicitation: Commercial Reusable Suborbital Research Program - CRuSR - Request for Information, earlier post
- List of Speakers Announced for the Next-Generation Suborbital Researchers Conference, earlier post

VFD Behavior When Motor Stops

Dear Friends,

I am facing a problem when i stop AC Drive. Actually, i reduced the deaccelaration time upto 3sec. When i give stop command to motor, motor stop abnormally with trip indication. But when i increases the decceleration tme upto 10sec it behaves normally when stop. what do u think

NCBI ROFL: Asparagus, urine, farts, and Benjamin Franklin (Part I) | Discoblog

A polymorphism of the ability to smell urinary metabolites of asparagus.

“The urinary excretion of (an) odorous substance(s) after eating asparagus is not an inborn error of metabolism as has been supposed. The detection of the odour constitutes a specific smell hypersensitivity. Those who could smell the odour in their own urine could all smell it in the urine of anyone who had eaten asparagus, whether or not that person was able to smell it himself. Thresholds for detecting the odour appeared to be bimodal in distribution, with 10% of 307 subjects tested able to smell it at high dilutions, suggesting a genetically determined specific hypersensitivity.”

asparagus_pee

Face it: your pee smells after you eat asparagus. (And if you think yours doesn’t, it’s because you can’t smell it.) This phenomenon (which is caused by various malodorous sulfur-containing compounds) has tickled the fancies of many researchers, as well as such luminaries as Proust, who wrote of asparagus: “exquisite creatures who had been pleased to assume vegetable form, and whose precious essence when, all night long after a dinner at which I had partaken of them, they played (lyrical and coarse in their jesting like a fairy-play by Shakespeare) at transforming my chamber pot into a vase of aromatic perfume (translated from Du côté de chez Swann, Gallimard, 1988, I, 119; I, 131).

But our favorite allusion to the asparagus-pee phenomenon has to be from Benjamin Franklin, who, in 1871 1781, wrote a letter asking researchers to come up with a solution to fart smells (the letter is definitely worth reading in full: To the Royal Academy of Farting):

“Certain it is also that we have the Power of changing by slight Means the Smell of another Discharge, that of our Water. A few Stems of Asparagus eaten, shall give our Urine a disagreable Odour; and a Pill of Turpentine no bigger than a Pea, shall bestow on it the pleasing Smell of Violets. And why should it be thought more impossible in Nature, to find Means of making a Perfume of our Wind than of our Water?”

So, now that we understand why our pee stinks when we eat asparagus, can we address Benjamin’s larger concern? Check back tomorrow for some cutting-edge research on fart-smell-reduction!