Friday, March 29, 2013

Cosmic crash 2022: Space probes will smash into asteroid in nine years

Cosmic crash 2022: American and European scientists are planning to crash a spacecraft into a nearby asteroid in 2022 to analyze the interior of the cosmic rock.

By Miriam Kramer,?Space.com / March 25, 2013

This NASA simulation shows asteroid 2012 DA14 approaching Earth from the south on Feb. 15, 2013, when the 150-foot asteroid passed within 17,000 miles of the Earth. In 2022, scientists hope to crash a space probe into asteroid Didymos in order to understand its composition.

JPL-Caltech / NASA / AP

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Scientists in Europe and the United States are moving forward with plans to intentionally smash a spacecraft into a huge nearby asteroid in 2022 to see inside the space rock.

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The ambitious European-led Asteroid Impact and Deflection Assessment mission, or AIDA, is slated to launch in 2019 to send two spacecraft ? one built by scientists in the U.S, and the other by the European Space Agency ? on a three-year voyage to the asteroid Didymos and its companion. Didymos has no chance of impacting the Earth, which makes it a great target for this kind of mission, scientists involved in the mission said in a presentation Tuesday (March 19) here at the 44th annual Lunar and Planetary Science Conference.

Didymos is actually a binary asteroid system consisting of two separate space rocks bound together by gravity. The main asteroid is enormous, measuring 2,625 feet (800 meters) across. It is orbited by a smaller asteroid ?about 490 feet (150 m).

The Didymos asteroid setup is an intriguing target for the AIDA mission because it will give scientists their first close look at a binary space rock system while also yielding new insights into ways to deflect dangerous asteroids that could pose an impact threat to the Earth.?

"Binary systems are quite common," said Andy Rivkin, a scientist at Johns Hopkins' Applied Physics Laboratory in Laurel, Md., working on the U.S. portion of AIDA project. "This will be our first rendezvous with a binary system."

In 2022, the Didymos asteroids will be about 6.8 million miles (11 million km) from the Earth, during a close approach, which is why AIDA scientists have timed their mission for that year.

Rivkin and his colleagues at Johns Hopkins' Applied Physics Laboratory are building DART (short for Double Asteroid Redirection Test), one of the two spacecraft making up the tag team AIDA mission. Like its acronym suggests, the DART probe crash directly into the smaller Didymos asteroid while travelling at 14,000 mph (22,530 km/h), creating a crater during an impact that will hopefully sending the space rock slightly off course, Rivkin said.

The European Space Agency is building the second AIDA spacecraft, which is called the Asteroid Impact Monitor (or AIM). AIM will observe the impact from a safe distance, and the probe's data will be used with other data collected by telescopes on Earth to understand exactly what the impact did to the asteroid.

"AIM is the usual shoebox satellite," ESA researcher Jens Biele, ?who works on the AIM spacecraft, said. "It's nothing very fancy."

AIDA scientists hope their mission will push the smaller Didymos asteroid off course by only a few millimeters. The small space rock orbits the larger, primary Didymos asteroid once every 12 hours.

Source: http://rss.csmonitor.com/~r/feeds/science/~3/c5vac-mjVOI/Cosmic-crash-2022-Space-probes-will-smash-into-asteroid-in-nine-years

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Thursday, March 7, 2013

Stocking Florida bass in Texas reservoirs may alter stream systems connected to stocked reservoirs

Mar. 7, 2013 ? A genetic analysis by Baylor University biologists suggests that the stocking of Florida bass in Texas reservoirs impacts bass populations far beyond the actual stocking location.

The native largemouth bass has a long and nearly continuous stocking history in Texas. However, the Florida bass is widely considered a better sport fish because it grows to a greater size. Subsequently, stocking efforts in Texas reservoirs have transitioned from largemouth bass to Florida bass.

The Baylor researchers analyzed the genetic composition of 69 largemouth bass in nonstocked streams of central Texas. These results were compared to DNA from 27 largemouth bass and Florida bass specimens provided by the Texas Parks and Wildlife Department that represented stock lineages as well as wild fish from outside of the sampling region.

Their analyses found the presence of Florida bass DNA in bass at all sampling locations, including sites more than 50 miles upstream from the closest documented stocking location.

"This presence of Florida bass DNA at the sampling locations indicates that the influence of stocking reaches far beyond managed reservoirs," reported Patrick D. Danley, Ph.D., assistant professor in the department of biology in Baylor's College of Arts and Sciences. "Although the stocking of non-native Florida bass in reservoirs may enhance fishing opportunities, it also has the ability to alter stream systems that are directly connected to stocked reservoirs."

Because of the methods used, the researchers could not determine if Florida bass migrated upstream or if the movement of their DNA was due to hybridization with native populations.

"At this time, we cannot determine whether our samples represent a hybridizing group of largemouth bass and Florida bass or two distinct co-occurring species," Danley said. "Further studies using nuclear markers would be useful for differentiating hybrids from pure lineages of Florida bass and largemouth bass and would shed light on the impacts of Florida bass stocking on native largemouth bass populations in central Texas," he said.

Additional researchers involved in the study include Ryan S. King, Ph.D., associate professor of biology, doctoral student Martin Husemann, and former doctoral student Jesse Ray.

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The above story is reprinted from materials provided by Baylor University.

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Journal Reference:

  1. Jesse W. Ray, Martin Husemann, Ryan S. King, Patrick D. Danley. Genetic Analysis Reveals Dispersal of Florida Bass Haplotypes from Reservoirs to Rivers in Central Texas. Transactions of the American Fisheries Society, 2012; 141 (5): 1269 DOI: 10.1080/00028487.2012.690814

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/~3/fUqGa0AUH4E/130307161629.htm

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A diplomatic natural, Kerry hits ground running

(AP) ? With the smile of a seasoned politician, a flair for languages and a vast repertoire of personal anecdotes, Secretary of State John Kerry schmoozed and cajoled his way through Europe and the Middle East on his first trip abroad as America's top envoy. But as far as diplomatic triumphs go, Dennis Rodman stole the show.

Kerry plunged into his first official overseas voyage by touring the capitals of America's traditional Western European allies, charming his hosts in Britain, France, Germany and Italy with his patrician bearing, fluent French, passable German and smattering of Italian.

He greeted officials with the comfortable blue-blooded bonhomie of a well-heeled man at ease in the grand salons of London, Paris, Berlin and Rome, yet one still deeply affected by his combat experience in Vietnam, something he made clear to German youth in a town hall meeting on the second stop of the trip.

Leaving Europe behind, Kerry immersed himself in the byzantine politics of a volatile Mideast that is struggling with the chaotic aftermath of the Arab Spring, an area in which the Obama administration must toe a delicate line between advocacy and unwanted interference.

In Rome and Cairo, he doled out modest aid packages to the Syrian opposition and to Egypt's foundering Islamist government with an appeal for that country's bickering politicians to save their nation from economic ruin ? at the same time Congress and the Obama administration were bickering about cuts to the United States' budget. In Ankara and Riyadh, he rebuked the Turks over anti-Israel rhetoric and warned Iran about its nuclear program.

The silver-maned, slightly hard-of-hearing, 69-year-old Kerry also announced a significant shift in policy toward the Free Syrian Army, providing nonlethal assistance directly to the armed rebels fighting to oust President Bashar Assad.

However, the biggest diplomatic coup during Kerry's trip sprung from his antithesis: a flamboyant, retired NBA star with multiple body piercings who became the first American to have ever met North Korea's reclusive young leader, Kim Jong-Un.

Thus it was Dennis Keith Rodman, former Chicago Bull, Southeastern Oklahoma State attendee, basketball journeyman and Madonna boy toy, and not Yale-educated John Forbes Kerry, former Massachusetts senator and Democratic presidential nominee, who was the talk of the foreign policy cocktail circuit back home.

Kerry told NBC on Tuesday that Rodman "was a great basketball player, and as a diplomat, he was a great basketball player. That's where we'll leave it."

Still, Kerry soldiered on, conscious of the legacy left by his predecessor, Hillary Rodham Clinton, but determined to make his own mark on U.S. diplomacy as America's 68th secretary of state and clean up some long unfinished business along with way.

At a meeting with U.S. Embassy staff in Abu Dhabi, the ex-chairman of the Senate Foreign Relations Committee described himself as a "recovering politician and budding diplomat" and reprised the biggest laugh line of his speech to the State Department on his first on the job.

"I have big heels to fill," he said to chuckles. "The big test, obviously, as I mentioned, is: Can a man do this job now?"

Kerry was apparently unfazed when nearly half of the Egyptian opposition figures invited to meet him at a roundtable at a luxury Cairo hotel didn't show up. They complained that the United States is siding with President Mohammed Morsi's Muslim Brotherhood. Nonetheless, Kerry gave his message that politicians of all sides have to compromise for the good of the nation.

Kerry dutifully reassured Europeans that the Obama administration's much-publicized pivot to Asia won't leave them bereft of the trans-Atlantic ally that protected them from Cold War Soviet ambitions. He made clear to Gulf Arabs wary of Iran's growing assertiveness that Washington would not allow Tehran to get nukes and run roughshod through the region.

And, in a nod toward hopes for possible progress on the Mideast peace front, he had lunch Monday with Palestinian President Mahmoud Abbas in Saudi Arabia.

The first white man to run the State Department since Warren Christopher stepped down in 1997, Kerry appears to be a throwback to the "pale, male, Yale" era of American diplomacy when the striped-pants Ivy League set ruled the roost in Foggy Bottom and U.S. embassies and consulates abroad.

But despite the wardrobe of custom suits and a rack of pink and teal neckties from a Martha's Vineyard clothier that proudly caters to the preppy crowd, Kerry strove to present an everyman persona, notably to embassy staff.

He recalled his time growing up as a foreign service officer's child in post-World War II Europe. He promised to fight for funding for them even as budget cuts kick in.

"When I was the son of a foreign service officer and went to another country, and changed schools, I didn't really know where I was, and wasn't too sure why," he told employees at the U.S. Embassy in Riyadh, after pulling about two dozen of their offspring onto the dais with him to pose for pictures.

"And, I'll tell you folks, you put up with a lot in that respect," he said. "I know what it means to be in this great endeavor."

After nearly falling off the stage in an embassy reception room in Rome, Kerry regaled those assembled with a story about how he and the current U.S. ambassador to Italy decades ago bought a broken-down London taxi and drove through Europe with post-adolescent gusto.

"I think we left London one night at midnight and went to the ferry and went across to France and went down through France and Spain and then down into Italy and had a great adventure, running with the bulls in Pamplona and all those crazy things you do when you're 18 years old," he recalled.

A little more than a stone's throw from the Vatican on the day Pope Benedict XVI became the first pontiff to retire in 600 years, Kerry ? a practicing Roman Catholic ? joked about a friend who had teased him with this made-up headline: "Kerry Arrives; Pope Goes."

In Paris, where his mother, Rosemary, of the wealthy Forbes clan, was born and later worked as a nurse's aide during World War II before fleeing the city on a bicycle as the Nazis marched into the city in June 1940, Kerry hinted at youthful fun in the City of Light.

"I spent, or misspent, a night or two of my youth here in this city," he said with a roguish grin. "I will not tell you about wandering around Paris all night long just to live it and feel it."

Now, decades later, a man whose entire life appears to have been prologue to being secretary of state is wrapping up a diplomatic dash that has taken him to nine countries in 10 days.

He has his diplomatic passport back and seems ready to use it.

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/cae69a7523db45408eeb2b3a98c0c9c5/Article_2013-03-06-US-Kerry's-Debut/id-55b1de22ed924c8b89d53cbf758d9585

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Rounding Up the Latest NFL Draft Buzz, Rumors and Speculation

According Dan Pompei of the National Football Post, Ezekiel Ansah didn't train for the combine. Instead he simply continued to attend class at BYU.

Pompei also states that, according to Ansah's agent, the 40-yard dash at the combine was the first of his career.?

This story has generated quite a bit of discussion over the past few days, but its possibly the most overblown report of the NFL offseason thus far.?

For starters, there's nothing too unusual about continuing to attend class. Many top prospects drop out of school and enroll in a full-time training facility, but there are plenty who choose a different path.?

The story about Ansah's 40-yard dash would be far more impressive...if there were any truth to it.

Technically, it may be the first time Ansah ran exactly 40 yards in a full sprint, but it's far from the first time he's competed in a similar event.?

Ansah originally enrolled at BYU as a track athlete, so it should come as no surprise that he excelled at the 40-yard dash in Indianapolis.?

Source: http://bleacherreport.com/articles/1554872-rounding-up-the-latest-nfl-draft-buzz-rumors-and-speculation

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Wednesday, March 6, 2013

Video: University sends acceptance letters to the wrong students

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Source: http://www.nbcnews.com/video/nbc-news/51067204/

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Venezuelan President Hugo Chavez Has Died - Yeshiva World News

chavez.jpgPresident Hugo Chavez, the fiery populist who declared a socialist revolution in Venezuela, crusaded against U.S. influence and championed a leftist revival across Latin America, died Tuesday at age 58 after a nearly two-year bout with cancer.

Vice President Nicolas Maduro, surrounded by other government officials, announced the death in a national television broadcast. He said Chavez died at 4:25 p.m. local time.

During more than 14 years in office, Chavez routinely challenged the status quo at home and internationally. He polarized Venezuelans with his confrontational and domineering style, yet was also a masterful communicator and strategist who tapped into Venezuelan nationalism to win broad support, particularly among the poor.

Chavez repeatedly proved himself a political survivor. As an army paratroop commander, he led a failed coup in 1992, then was pardoned and elected president in 1998. He survived a coup against his own presidency in 2002 and won re-election two more times.

The burly president electrified crowds with his booming voice, often wearing the bright red of his United Socialist Party of Venezuela or the fatigues and red beret of his army days. Before his struggle with cancer, he appeared on television almost daily, talking for hours at a time and often breaking into song of philosophical discourse.

Chavez used his country?s vast oil wealth to launch social programs that include state-run food markets, new public housing, free health clinics and education programs. Poverty declined during Chavez?s presidency amid a historic boom in oil earnings, but critics said he failed to use the windfall of hundreds of billions of dollars to develop the country?s economy.

Inflation soared and the homicide rate rose to among the highest in the world.

Chavez underwent surgery in Cuba in June 2011 to remove what he said was a baseball-size tumor from his pelvic region, and the cancer returned repeatedly over the next 18 months despite more surgery, chemotherapy and radiation treatments. He kept secret key details of his illness, including the type of cancer and the precise location of the tumors.

?El Comandante,? as he was known, stayed in touch with the Venezuelan people during his treatment via Twitter and phone calls broadcast on television, but even those messages dropped off as his health deteriorated.

Two months after his last re-election in October, Chavez returned to Cuba again for cancer surgery, blowing a kiss to his country as he boarded the plane. He was never seen again in public.

After a 10-week absence marked by opposition protests over the lack of information about the president?s health and growing unease among the president?s ?Chavista? supporters, the government released photographs of Chavez on Feb. 15 and three days later announced that the president had returned to Venezuela to be treated at a military hospital in Caracas.

Throughout his presidency, Chavez said he hoped to fulfill Bolivar?s unrealized dream of uniting South America.

He was also inspired by Cuban leader Fidel Castro and took on the aging revolutionary?s role as Washington?s chief antagonist in the Western Hemisphere after Castro relinquished the presidency to his brother Raul in 2006.

Supporters saw Chavez as the latest in a colorful line of revolutionary legends, from Castro to Argentine-born Ernesto ?Che? Guevara. Chavez nurtured that cult of personality, and even as he stayed out of sight for long stretches fighting cancer, his out-sized image appeared on buildings and billboard throughout Venezuela. The airwaves boomed with his baritone mantra: ?I am a nation.? Supporters carried posters and wore masks of his eyes, chanting, ?I am Chavez.?

Chavez saw himself as a revolutionary and savior of the poor.

?A revolution has arrived here,? he declared in a 2009 speech. ?No one can stop this revolution.?

Chavez?s social programs won him enduring support: Poverty rates declined from 50 percent at the beginning of his term in 1999 to 32 percent in the second half of 2011. But he also charmed his audience with sheer charisma and a flair for drama that played well for the cameras.

He ordered the sword of South American independence leader Simon Bolivar removed from Argentina?s Central Bank to unsheathe at key moments. On television, he would lambast his opponents as ?oligarchs,? announce expropriations of companies and lecture Venezuelans about the glories of socialism. His performances included renditions of folk songs and impromptu odes to Chinese revolutionary Mao Zedong and 19th century philosopher Friedrich Nietzsche.

Chavez carried his in-your-face style to the world stage as well. In a 2006 speech to the U.N. General Assembly, he called President George W. Bush the devil, saying the podium reeked of sulfur after Bush?s address.

Critics saw Chavez as a typical Latin American caudillo, a strongman who ruled through force of personality and showed disdain for democratic rules. Chavez concentrated power in his hands with allies who dominated the congress and justices who controlled the Supreme Court.

He insisted all the while that Venezuela remained a vibrant democracy and denied trying to restrict free speech. But some opponents faced criminal charges and were driven into exile.

While Chavez trumpeted plans for communes and an egalitarian society, his soaring rhetoric regularly conflicted with reality. Despite government seizures of companies and farmland, the balance between Venezuela?s public and private sectors changed little during his presidency.

And even as the poor saw their incomes rise, those gains were blunted while the country?s currency weakened amid economic controls.

Nonetheless, Chavez maintained a core of supporters who stayed loyal to their ?comandante? until the end.

?Chavez masterfully exploits the disenchantment of people who feel excluded ? and he feeds on controversy whenever he can,? Cristina Marcano and Alberto Barrera Tyszka wrote in their book ?Hugo Chavez: The Definitive Biography of Venezuela?s Controversial President.?

Hugo Rafael Chavez Frias was born on July 28, 1954, in the rural town of Sabaneta in Venezuela?s western plains. He was the son of schoolteacher parents and the second of six brothers.

Chavez was a fine baseball player and hoped he might one day pitch in the U.S. major leagues. When he joined the military at age 17, he aimed to keep honing his baseball skills in the capital.

But the young soldier immersed himself in the history of Bolivar and other Venezuelan heroes who had overthrown Spanish rule, and his political ideas began to take shape.

Chavez burst into public view in 1992 as a paratroop commander leading a military rebellion that brought tanks to the presidential palace. When the coup collapsed, Chavez was allowed to make a televised statement in which he declared that his movement had failed ?for now.? The speech, and those two defiant words, launched his career, searing his image into the memory of Venezuelans.

He and other coup prisoners were released in 1994, and President Rafael Caldera dropped the charges against them.

Chavez then organized a new political party and ran for president four years later, vowing to shatter Venezuela?s traditional two-party system. At age 44, he became the country?s youngest president in four decades of democracy with 56 percent of the vote.

Chavez was re-elected in 2000 in an election called under a new constitution drafted by his allies. His increasingly confrontational style and close ties to Cuba, however, disenchanted many of the middle-class supporters who had voted for him. The next several years saw bold but failed attempts by opponents to dislodge him from power.

In 2002, he survived a short-lived coup, which began after a large anti-Chavez street protest ended in deadly shootings. Dissident military officers detained the president and announced he had resigned. But within two days, he returned to power with the help of military loyalists while his supporters rallied in the streets.

Chavez emerged a stronger president. He defeated a subsequent opposition-led strike that paralyzed the country?s oil industry, and he fired thousands of state oil company employees.

The coup also turned Chavez more decidedly against the U.S. government, which had swiftly recognized the provisional leader who had briefly replaced him. He created political and trade alliances that excluded the U.S., and he cozied up to Iran and Syria in large part, it seemed, due to their shared antagonism toward the U.S. government.

Despite the souring relationship, Chavez sold the bulk of Venezuela?s oil to the United States.

He easily won re-election in 2006, and then said it was his destiny to lead Venezuela until 2021 or even 2031.

?I?m still a subversive,? Chavez said in a 2007 interview with The Associated Press. ?I think the entire world has to be subverted.?

Playing such a larger-than-life public figure ultimately left little time for a personal life.

His second marriage, to journalist Marisabel Rodriguez, deteriorated in the early years of his presidency, and they divorced in 2004. In addition to their one daughter, Rosines, Chavez had three children from his first marriage, which ended before Chavez ran for office.

Chavez acknowledged after he was diagnosed with cancer that he had been recklessly neglecting his health. He had taken to staying up late and drinking as many as 40 cups of coffee a day. He regularly summoned his Cabinet ministers to the presidential palace late at night.

He often said he believed Venezuela was on its way down a long road toward socialism, and that there was no turning back. After winning re-election in 2012, he vowed to deepen his push to transform Venezuela.

His political movement, however, was mostly a one-man show. Only three days before his final surgery, Chavez named Maduro as his chosen successor.

Now, it will be up to Venezuelans to determine whether the Chavismo movement can survive, and how it will evolve, without the leader who inspired it.

(AP)

Source: http://www.theyeshivaworld.com/?p=159646

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