Friday, April 12, 2013

North Korea threatens to use nuclear weapons



>>> nerves are on a hair trigger again tonight over north korea . the u.s., south korea , japan, all anxiously awaiting that nation's expected launch of a missile trajectory unknown, u.s. defense secretary chuck hagel said today the situation is combustible, our chief foreign correspondent richard engel joins us once again tonight live from seoul, south korea . richard, good evening.

>> reporter: good evening, brian. the launch window is now open but what's happening here as implications far greater than that. north korea is showing that because of its weapons, it can't be contained. at the dmz this morning, tensions are peaking. south korean troops guard buildings used for negotiations with pyongyang, now empty. north korean soldier is seen just yards away, until he sees us filming. the entire region is on edge. in japan, the defense minister inspected missile defenses around tokyo. jumpy officials in yokohama had to apologize after accidentally tweeting that north korea had launched a missile. north korea itself seems to be living on another planet. people dancing in the streets, a state-sponsored mass waltz, even as the government said the situation is inching toward thermonuclear war.

>> north korea has been with its belicose rhetoric, its skating toward a dangerous line.

>> reporter: analysts say north korea may be trying to deliberately drag this out. this is its moment the time to show the world it's armed and dangerous , more than a small dictatorship locked away with sanctions and ignored. north korea has hijacked the world's attention but why does it matter if they test a missile or not? because they have nuclear weapons , and they're threatening to use them. the u.s. has been forced to react, canceling a missile test of its own, moving warships to the region but still unable to deter pyongyang. other states with nuclear programs, particularly iran, are taking note.

>> what north korea teaches us is that once a rogue regime has a nuclear weapon we have not figured out how to reliably contain it, how to protect americans, or how to protect our allies.

>> reporter: north korea threatening to use its trump card , bluffing a superpower, perhaps proving nuclear threats work. for years, the u.s. has been trying to convince states, including iran, that they're safer without nuclear weapons . north korea is trying to prove us wrong. brian?

>> richard engel remains in seoul,

Source: http://feeds.nbcnews.com/c/35002/f/653387/s/2a939ee8/l/0Lvideo0Bmsnbc0Bmsn0N0Cid0C51498851/story01.htm

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Discovery of a blue supergiant star born in the wild

Apr. 10, 2013 ? A duo of astronomers, Dr. Youichi Ohyama (Institute of Astronomy and Astrophysics, Academia Sinica or ASIAA, Taiwan) and Dr. Ananda Hota (UM-DAE Centre for Excellence in the Basic Sciences or CBS, India), has discovered a blue supergiant star located far beyond our Milky Way Galaxy in the constellation Virgo.

Over 55 million years ago, the star emerged in an extremely wild environment, surrounded by intensely hot plasma (a million degrees centigrade) and amidst raging cyclone winds blowing at four million kilometers per hour. Research using the Subaru Telescope, the Canada-France-Hawaii-Telescope (CFHT) and the National Aeronautics and Space Administration's (NASA) Galaxy Evolution Explorer (GALEX) revealed unprecedented views of the star formation process in this intergalactic context and showed the promise of future investigations of a possibly new mode of star formation, unlike that within our Milky Way.

About one thousand galaxies reside in a cluster filled with million-degree hot plasma and dark matter. The Virgo cluster, the nearest cluster of galaxies located about 55 million light years from Earth in the constellation Virgo, is an ideal laboratory to study the fate of gas stripped from the main body of galaxies falling into the intra-cluster medium. Does star formation take place in the clouds of stripped gas? If so, how? Dr. Ohyama and Dr. Hota focused on the trail of IC 3418 to explore a potentially new mode of star formation. Dr. Hota has been collecting data from multiple telescopes since 2006 to understand this galaxy, which he first spotted in the GALEX data during his Ph.D. research.

IC 3418 is a small galaxy falling into the Virgo cluster of galaxies at such a high speed (a thousand kilometers per second) that its blanket of cool gas strips off. As it passed through the cluster, its stripped-off cool gas formed a 55,500 light-years-long trail that looks very much like the water vapour condensation trail from a supersonic jet's path. Hot plasma surrounds the trail of IC 3418, and it has not been clear whether the clouds of cool gas would vaporize like water sprinkled on a hot frying pan or condense further to form new young massive stars. The GALEX ultraviolet image shows that new massive stars do form in the trail. How did the stripped gas condense to form new stars without getting vaporized by the hot plasma? This process does not conform to star formation in our Milky Way Galaxy where massive stars develop in groups inside of stellar nurseries sheltered within giant cold molecular gas clouds.

Dr. Ohyama suspected that a tiny dot of light emission in the trail of IC 3418 might be different from other blobs of ultraviolet light emissions in the trail. Spectroscopy of the little dot from Subaru Telescope's Faint Object Camera and Spectrograph (FOCAS) revealed something stunning. Dr. Ohyama recalls, "When I first saw the spectrum, I was so puzzled, since it did not look like anything I had known of in extra-galactic astronomy." Unlike typical star-forming regions, the telltale signs of stellar nurseries were missing.

Intense UV-radiation usually ionizes/heats-up the surrounding gas when a star is born. Instead of any sign of heated gas, the observation showed fast winds blowing out of the stellar atmosphere at a speed of about 160 kilometers per second. Comparison with emissions from nearby stars made it clear that this massive, hot (O-type) star had passed its youth and was now aging; it was at a stage known as Blue Supergiant star and would soon face its explosive death as a supernova.

Dr. Ohyama commented on the significance of the research: "If our interpretations are correct, this is probably the farthest star ever discovered with spectroscopic observation. Since we only observed for a fraction of the night with the 8.2 m Subaru Telescope, there is huge potential for stellar spectroscopy with extremely large telescopes, e.g., the Thirty Meter Telescope, being planned for the future. We look forward to that exciting time."

Dr. Hota emphasized how important it is for astronomers to pay attention to this exotic system: "Precisely because the thermal and dynamic contrast of star formation that our research shows cannot be observed within our Milky Way, the details revealed by the Subaru Telescope's spectroscopy and the deep, sharp imaging of CFHT are opening up a new avenue for investigating the baffling fundamentals of star formation." Future in-depth investigations of this cocktail of hot plasma and turbulent, cold gas may reveal very different characteristics of stars, which may remain wild, exotic objects, challenging current theories of star formation.

This research was partially supported by the following:

  • National Science Council of Taiwan (grant to Dr. Ohyama)
  • National Centre for Radio Astrophysics of Tata Institute of Fundamental Research (NCRA-TIFR) and Inter-University Centre for Astronomy and Astrophysics (IUCAA), both in India (for Visiting Astronomer position to Dr. Hota).

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Story Source:

The above story is reprinted from materials provided by Subaru Telescope, National Astronomical Observatory of Japan.

Note: Materials may be edited for content and length. For further information, please contact the source cited above.


Journal Reference:

  1. Youichi Ohyama, Ananda Hota. Discovery of a Possibly Single Blue Supergiant Star in the Intra-cluster Region of Virgo Cluster of Galaxies. The Astrophysical Journal, 2013; 767 (2): L29 DOI: 10.1088/2041-8205/767/2/L29

Note: If no author is given, the source is cited instead.

Disclaimer: Views expressed in this article do not necessarily reflect those of ScienceDaily or its staff.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/top_news/top_technology/~3/3UKjZOosQyI/130410194227.htm

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General Motors gives Facebook another try

After a very messy breakup last year, GM has announced that it will test-run ads on Facebook once again.?The company broke away from the social-networking giant last May, just 10 days before Facebook's IPO.

By Aimee Ortiz / April 10, 2013

The Facebook logo as it is displayed on an iPad.

Matt Rourke/AP

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"If you love something, set it free; and if it comes back, then it?s yours." That proverb seems to ring true for General Motors and Facebook. GM has announced that it will test-run advertising with Facebook after their very public break-up last May, just before Facebook?s initial public offering.

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It was very bad timing for Facebook -- a major company pulling out $10 million just before its IPO. But now, less than a year from the split, GM and Facebook have reunited to advertise Chevrolet?s subcompact car, the Sonic. The Sonic is being marketed toward young people.

GM pulled its paid advertisement at the behest of its former Chief Marketing Officer Joel Ewanick. Mr. Ewanick stopped paid ads with Facebook under the claim that there was no proof that such ads were more successful than the free GM brands pages.

However, many things have changed with Facebook since then. In January, reports were published that Facebook has become the most used mobile application in the United States. Close to a quarter of the time that Americans spend using mobile apps is taken up just on Facebook.?It comes as no surprise, then, that GM will run its advertisements solely through Facebook's mobile site.

?It?s almost inevitable that they would be back," says Brennan White, directing manager of Pandemic Labs in Boston. ?Facebook is the dominant mobile application. We?re seeing a huge increase in Facebook advertising dollars and Facebook mobile advertising.?

Mr. White explains that Facebook has put considerable effort into ?cracking the mobile nut, so to speak.?? Big companies like GM can better target potential customers if they pair up with Facebook, he says.

So, what else caught GM?s attention?

Facebook?s latest additions proved attractive to the automobile maker,?according?to valuewalk.com.

?Another key feature is the introduction of FBX ad-exchange, which inserts highly targeted promos into the users? timeline. It increased the likelihood of users seeing and clicking more ads,? writes Vikas Shukla of valuewalk. ?

As was mentioned before, it was GM's Mr. Ewanick that decided against paid ads on Facebook. Ewanick was forced to leave GM last July after not giving full disclosure with regards to Chevy?s sponsorship of the soccer team Manchester United.

GM replaced him with Alan Batey, who has reversed many of Ewanick?s decisions.

In addition to returning to Facebook, Mr. Batey has also reversed Ewanick?s decision to split Chevrolet advertising between Goodby Silverstein and McCann Worldgroup, consolidating it under McCann and changed the ?Chevy runs deep? campaign to ?Find new roads.?

Mobile ads are becoming a big part of Facebook?s revenue. The recent unveiling of Facebook?s Home app could further cement its seat in the app-universe. The social-network giant estimates that 23 percent of its ad revenue in the fourth quarter came from mobile ad, according to CNN.

Will Facebook and GM stay together this time? Nothing is certain; the ads are, after all, a test-run. However, with the ad market turning digital, Facebook could play a much bigger part in many companies's ad plans.

For more tech news follow Aimee on?Twitter,?@aimee_ortiz

Source: http://rss.csmonitor.com/~r/feeds/csm/~3/DNik7_Bfa6Y/General-Motors-gives-Facebook-another-try

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Thursday, April 11, 2013

Calm in Guam as islanders doubt North Korean missile aim

The US territory's crisis-ready inhabitants are trusting God, Uncle Sam, common sense, and poor aim to keep them safe from a ballistic assault by North Korea.

By Jeffrey Tomas Marchesseault,?Contributor / April 10, 2013

Members of the 374th Airlift Wing of US Air Force work on a C-130 aircraft during the Cope North military exercises at Andersen US Air Force Base in Guam, in February. North Korea is threatening to attack the US territory.

Koji Ueda/AP/File

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Doomsday missives aside, the beat goes on in Guam.

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Yes, North Korea is threatening to attack the island. And, yes, this 30-mile stretch of?terra firma?at the south end of the Marianas archipelago may be well within missile range. But the American territory's crisis-ready inhabitants are trusting God, Uncle Sam, common sense, and poor aim to keep them safe from a ballistic assault.

This isn't the first time the repressive, isolated regime has flaunted the notion that Guam is within striking distance. Nor is it probably the last time Guamanians will hear that North Korea lacks the technology to make a direct hit. Islanders don't treat the current round of vitriol lightly, but aren't paralyzed by it either.

?When I became a reporter, the North Korean threat was one that I was deeply interested in,? says Clynt Ridgell, a local TV news anchor. ?Over the years, however, I've begun to see that these threats are usually empty. Every couple of years it seems that the DPRK [the Democratic Republic of Korea] will ramp up the rhetoric ... usually because they want some sort of aid or they just want the US and the world to take notice,? Mr. Ridgell says, referring to the official name of North Korea. ?Then things will calm down, everything goes back to normal and we all seem to forget that North Korea even exists.?

You might say Guam has lived through worse.

On Dec. 8, 1941, Japan bombed US Guam. It happened within hours of the Imperial attack on Pearl Harbor that drew the United States into World War II, and soon drove the nation to retake Guam by force. By 1941, the island had already been a US possession for two generations as a spoil of the Spanish-American War, after which Spain had ceded the Philippines, Puerto Rico, and Guam to America. Spain conquered Guam during the Age of Exploration and ruled it from the Renaissance until 1899. Since then, the island has often been described as a political pawn in a world ruled by superpowers and has weathered tropical storms, floods, and earthquakes along the way.

On the 61st anniversary of the Japanese invasion of Guam, Super Typhoon Pongsona ripped through the island, knocking out utilities and causing nearly a billion dollars in damage. An 8.1 magnitude earthquake rocked the territory in 1993, compromising the island's typhoon-ready concrete superstructure and forcing the demolition of a destabilized hotel months later. More recently, the tsunami that devastated northern Japan in March 2011 kept Guam on red alert for several hours.

Guam's hard-won battle scars may be a bit too calloused to feel the sting of amped up rhetoric streaming out of the Democratic People's Republic over the past two weeks. So far, the beat of war drums hasn't been frightening enough to keep locals from living their everyday lives. Over the past weekend, residents enjoyed sunny days paddle-boarding on the beach, barbecuing, and catching up on errands.

Visitors, too, are still keeping their itineraries. The island hosted the Guam International Marathon on Sunday, welcoming many residents and several Asian distance runners, including top finishers from South Korea and Japan. And Wednesday morning local media outlets were reporting Guam's highest visitor arrivals in 50 years, bucking the perception of an island in the crosshairs.

Tourism is one of Guam's economic twin engines. The other is the federal government, which maintains Naval Base Guam in the south and Andersen Air Force Base in the north. Andersen in particular has featured prominently on the DPRK's recent purported kill list.

Remote as the chance of attack may be, the faithful remain vigilant. Archbishop Anthony Apuron welcomed congregants to the Dulce Nombre de Maria Cathedral Basilica in the capital city of Hag?t?a in a mass for world peace on Sunday morning and asked parishes across the island to pray along.

"I was a little surprised ... when the priest started off his Homily talking about the situation in Korea,? says John Ryan, a local business consultant who attended church service in Yigo, near Andersen. ?The priest pointed [out] how strong faith can overcome fear. ?I think many people in this predominantly Catholic island relate well to that perspective as they think about what is happening on the Korean peninsula,? he says.

"While I have heard people talk about the damage and loss of life that a missile strike could cause to our small island, I do not know anyone who has changed their daily routine,? Mr. Ryan said after an active weekend with friends. ?Of course we are paying close attention to what is happening in Korea, but I think people here are just as concerned for the safety and well being of the people of South Korea. If I had to guess, I'd say for most Guamanians our thoughts and prayers are with the people of Korea first, if for no other reason than our faith and trust in the US and its allies to diffuse the crisis, or to respond appropriately if diplomacy fails."

Source: http://rss.csmonitor.com/~r/feeds/csm/~3/kqtVRR9KgNI/Calm-in-Guam-as-islanders-doubt-North-Korean-missile-aim

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Wednesday, April 10, 2013

Want to work at Engadget? We're hiring news writers and review editors!

Want to work at Engadget We're hiring news writers and review editors!

We know you're out there, dear future Engadget writer, but we need you here with us -- where we can touch you, teach you and pay you to write about all those gadgets you love so much. Professional writing experience is necessary, and preference will be given to those with experience in the technology space. If you're familiar with what we do, you'll know that we also require an ability to write about gadgets with wit, concision, accuracy and authority. And being obsessed with Engadget is good, too. Here's what we're after:

  • Late-night news writers: This position will require availability between 5PM ET and 3AM ET. Applicants can be located anywhere in the world (time zone converter here), but these hours will not change. To clarify, this is an Engadget US position, but location matters not. Primary tasks will include writing multiple news stories per day and assisting our staff in managing news.
  • NYC-based reviews editor: This position will require daily availability at our headquarters in Manhattan. The ideal candidate will work alongside our NYC-based reviews team, and will be expected to deliver in-depth, insightful and thorough reviews of smartphones, software, laptops, tablets and the occasional arcade dock. Experience writing consumer technology reviews is a must.

Want to apply? Read on!

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Source: http://www.engadget.com/2013/04/10/engadget-hiring-news-writers-reviews-editor/

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ThermoShield protects your phone in unbearable heat and bone-rattling cold

ThermoShield protects your phone in extreme heat and cold

Rugged phone cases are bountiful. But, while they may offer some additional thermal protection, they're not built for true extremes. For that, you'd need either piles of insulation (too bulky) or some way to control the temperature inside the case. ThermoShield, one of over a dozen student-run companies vying for attention at Northeastern University's Husky Startup Challenge, went the latter route by slipping a Peltier element inside a slim plastic shell. The current prototype was built on a 3D printer and clearly created for an iPhone, but plans for the initial model should be simple enough to port to any handset. A standard watch battery powers the small plate and by controlling the voltage across it you generate either small amounts of heat or produce a slight cooling effect. A simple switch or slider would be used to manually control the flow of electrons. Trekking through the arctic tundra? Simply crank up the heat to keep your phone from freezing to death. Meandering through the Sahara? Take advantage of the Peltier's thermoelectric cooling properties to keep the Gorilla Glass from melting.

According to one of the creators, Hannah Bialic, it wouldn't be terribly difficult to add automatic temperature control. Though, development costs could significantly drive up the price of the ThermoShield. The hardware could all be baked directly into the case itself or an app could be created that would automate everything. Obviously, though, relying on software would limit the case to working with a single device (and let's be realistic, it won't be your beloved Nexus 4). There's no telling when or if you'll actually be able to pick up one of these variable temperature shells, but you can add your name to the mailing list at the more coverage link.

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Source: http://feeds.engadget.com/~r/weblogsinc/engadget/~3/Kmxo-F1UHMM/

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Google Play cleans out nasty apps, updates its look

Google Play, the app store for Android phones and tablets, is not only rolling out a cleaner look, it's cleaning house, so far removing a reported 60,000 apps that were of questionable quality.

"The largest category of apps they cracked down was the MP3s and ringtones, which were heavily abused by slightly dodgy apps," Chester Wisniewski, Sophos senior security advisor, told NBC News Tuesday.

The apps "weren't technically illegal" as to violate Google Play rules, but were "heavily intrusive marketing vehicles that barely delivered on their promise," he said.

Google Play has 675,000 apps, and unlike "Uncle Apple," Wisniewski said, Google does "not prescreen apps using humans, there's an automated system" for apps to be allowed into the store.

The purging of the apps, he said, was done in February. "The fact that Google got rid of tens of thousands of apps that were duping people, upsetting users, is great. What we don't know is how have they changed their processes to make sure those apps don't come back in a week."

Problems with questionable ? and sometimes dangerous ? apps were becoming such an issue that in February 2012, Google introduced "Bouncer," a scanning service designed to identify malicious apps in Google Play.

NBC News has contacted Google for comment about the recent purge, and will update this post when we hear back.

When Bouncer was introduced, a Google Android engineering exec noted on the company's blog:

While it?s not possible to prevent bad people from building malware, the most important measurement is whether those bad applications are being installed from Android Market - and we know the rate is declining significantly.

Wisniewski said to be safe, Android users and buyers should make sure they have the latest version of Android that they can get on their devices. Phones and tablets with Android 4.0 and higher "have a whole ton of safety and security improvements on them," he said.

"There's still a whole bunch of cheaper ones out there running older OS's that are more vulnerable ? Android 2.2, or 2.1 ? really, really old versions of Android that are more vulnerable."

In the meantime, Google Play group product manager Michael Siliski shared news of the app store redesign, writing on a blog that the new look "focuses on bigger images that jump off the page. Similarly themed content is grouped together so you can hone in on a magazine to read or an app to try."

Google has also "simplified purchasing so you can breeze through checkout," he wrote.

The new look starts rolling out immediately for Android phones and tablets that use Android 2.2. and higher, and will be available around the world "in the next few weeks."

Check out Technology, GadgetBox, TODAYTech and InGame on Facebook, and on Twitter, follow Suzanne Choney.

Source: http://feeds.nbcnews.com/c/35002/f/653377/s/2a85c562/l/0L0Snbcnews0N0Ctechnology0Ctechnolog0Cgoogle0Eplay0Ecleans0Eout0Enasty0Eapps0Eupdates0Eits0Elook0E1C9279171/story01.htm

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