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  • El cisne negro. Nueva edición ampliada y revisada - Nassim Nicholas Taleb December 18, 2017
    ¿Qué es un cisne negro? Para empezar, es un suceso improbable, sus consecuencias son importantes y todas las explicaciones que se puedan ofrecer a posteriori no tienen en cuenta el azar y sólo buscan encajar lo imprevisible en un modelo perfecto. El éxito de Google y You Tube, y hasta ell 11-S, son “cisnes negros”. Para Nassim Nicholas Taleb, los cisnes negr […]
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  • Astrophysics For People In A Hurry By Neil deGrasse Tyson (Book Summary) - PDF Summaries December 18, 2017
    Get The Book That Gives Everyone, Of All Ages, A Summary Of The Book By Neil deGrasse Tyson. This is a summary of the best selling book Astrophysics for People in a Hurry. It is intended to be a condensed summary of this New York Times Best Seller. However, that book is over 200 pages. It is definitely not considered as a quick read. But here you will find t […]
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  • La teoría del todo - Stephen W. Hawking December 18, 2017
    Una manera clara y amena de acercarse a los misterios del universo. En esta esclarecedora obra, el gran físico británico Stephen Hawking nos ofrece una historia del universo, del big bang a los agujeros negros. En siete pasos, Hawking logra explicar la historia del universo, desde las primeras teorías del mundo griego y de la época medieval hasta las más com […]
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  • Física General Esencial - Agustín Vázquez Sánchez December 18, 2017
    La nueva edición del ebook contiene ahora ocho temas completos de física y una sección de prácticas para realizar en casa. Se han corregido errores y agregado más ejemplos y ejercicios además de recursos multimedia en todos los capítulos.  Los ejemplos resueltos se presentan paso a paso a través de una solución algebraica con lo cual se evitan errores n […]
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  • La física del futuro - Michio Kaku December 18, 2017
    Un recorrido asombroso a través de los próximos cien años de revolución científica. El futuro ya se está inventando en los laboratorios de los científicos más punteros de todo el mundo. Con toda probabilidad, en 2100 controlaremos los ordenadores a través de diminutos sensores cerebrales y podremos mover objetos con el poder de nuestras mentes, la inteligenc […]
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  • Tricks Any Dog Can Do! - Susan Day December 18, 2017
    This great book comes with advice and guidance as to the best way to teach these tricks. It offers more than one method which the reader can choose depending upon their own situation. There is also advice to using treats and shows you how to not end up with a treat junkie! This books is from the desk of Susan Day, a canine behaviourist. Susan teaches obedien […]
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  • Ágilmente - Estanislao Bachrach December 18, 2017
    Bachrach es Doctor en biología molecular y explica el funcionamiento del cerebro. A través de ello, da consejos y herramientas para ser más creativos y felices en el trabajo y en la vida. La neurociencia es clara: el cerebro aprende hasta el último día de vida. La creatividad puede expandirse. Tu mente, mediante la aplicación de las técnicas correctas, puede […]
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  • EnCambio - Estanislao Bachrach December 18, 2017
    EnCambio te va a permitir alumbrar los procesos por los cuales te comportás de determinada manera con el fin de dejar atrás aquellos hábitos y conductas que ya no te sirven. El objetivo es que aprendas del potencial que tiene tu cerebro para cambiar y la capacidad que tenés vos para modificarlo. Este año cambio de trabajo, empiezo el gimnasio, bajo esos kili […]
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  • Breve historia de mi vida - Stephen Hawking December 18, 2017
    La mente maravillosa de Stephen Hawking ha deslumbrado al mundo entero revelando los misterios del universo. Ahora, por primera vez, el cosmólogo más brillante de nuestra era explora, con una mirada reveladora, su propia vida y evolución intelectual. Breve historia de mi vida cuenta el sorprendente viaje de Stephen Hawking desde su niñez […]
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  • Este libro le hará más inteligente - John Brockman December 18, 2017
    En estas páginas se dan cita autores y textos de Daniel Kahneman , Richard Dawkins , Martin Seligman , Nicholas Carr , Steven Pinker , Daniel C. Dennett , Daniel Goleman y V. S. Ramachandran , entre otros. Sus respuestas a los retos más desafiantes de la ciencia se sitúan en los límites de la psicología, la filosofía, la economía, la física y la sociología, […]
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North Korea Rouses Neighbors to Reconsider Nuclear Weapons

Prime Minister Shinzo Abe has campaigned for a military buildup against the threat from the North, and Japan sits on a stockpile of nuclear material that could power an arsenal of 6,000 weapons. Last Sunday, he won a commanding majority in parliamentary elections, fueling his hopes of revising the nation’s pacifist Constitution.This brutal calculus over how to respond to North Korea is taking place in a region where several nations have the material, the technology, the expertise and the money to produce nuclear weapons.Beyond South Korea and Japan, there is already talk in Australia, Myanmar, Taiwan and Vietnam about whether it makes sense to remain nuclear-free if others arm themselves — heightening fears that North Korea could set off a chain reaction in which one nation after another feels threatened and builds the bomb.In a recent interview, Henry A. Kissinger, one of the few nuclear strategists from the early days of the Cold War still living, said he had little doubt where things were headed.“If they continue to have nuclear weapons,” he said of North Korea, “nuclear weapons must spread in the rest of Asia.”“It cannot be that North Korea is the only Korean country in the world that has nuclear weapons, without the South Koreans trying to match it. Nor can it be that Japan will sit there,” he added. “So therefore we’re talking about nuclear proliferation.”PhotoThe launch of a Hwasong-12 missile by North Korea in September.Credit Korean Central News AgencySuch fears have been raised before, in Asia and elsewhere, without materializing, and the global consensus against the spread of nuclear weapons is arguably stronger than ever.Continue reading the main storyBut North Korea is testing America’s nuclear umbrella — its commitment to defend its allies with nuclear weapons if necessary — in a way no nation has in decades. Similar fears of abandonment in the face of the Soviet Union’s growing arsenal helped lead Britain and France to go nuclear in the 1950s.President Trump, who leaves Nov. 3 for a visit to Asia, has intensified these insecurities in the region. […]

The World Once Laughed at North Korean Cyberpower. No More.

And just as Western analysts once scoffed at the potential of the North’s nuclear program, so did experts dismiss its cyberpotential — only to now acknowledge that hacking is an almost perfect weapon for a Pyongyang that is isolated and has little to lose.The country’s primitive infrastructure is far less vulnerable to cyberretaliation, and North Korean hackers operate outside the country, anyway. Sanctions offer no useful response, since a raft of sanctions are already imposed. And Mr. Kim’s advisers are betting that no one will respond to a cyberattack with a military attack, for fear of a catastrophic escalation between North and South Korea.PhotoPortraits of the former North Korean leaders, Kim Il-sung and Kim Jong-il, on a building in Pyongyang.Credit Ed Jones/Agence France-Presse — Getty Images“Cyber is a tailor-made instrument of power for them,” said Chris Inglis, a former deputy director of the National Security Agency, who now directs cyberstudies at the United States Naval Academy. […]

Prospect of Atmospheric Nuclear Test by North Korea Raises Specter of Danger

“It is not clear North Korea has that capability yet,’’ said Siegfried S. Hecker, the former director of Los Alamos National Laboratory and the nuclear weapons expert the North Koreans let in to see their uranium enrichment plants years ago, when they wanted to make clear to the Obama administration that their atomic weapons program was moving ahead, unimpeded by sanctions.“Besides,” said Dr. Hecker, now a professor at Stanford University, “a live missile test — one loaded with an H-bomb — poses enormous risk.” He recalled that when the United States performed such tests in the early days of the Cold War, “one blew up on the launchpad and one had to be destroyed right after launch, creating significant radioactive contamination.”The North Koreans have studied this history, too, according to current and former American intelligence officials. But the appeal of an atmospheric test is obvious: It would create a sense of fear that an explosion deep inside a tunnel in North Korea does not. The underground tests are detected on a Richter scale; an atmospheric test, like the kind the United States conducted at Bikini Atoll starting in 1948, creates a terrifying mushroom cloud.Continue reading the main storyThe largest of those, a 1954 test code-named Castle Bravo, turned out to be roughly three times larger than American bomb designers anticipated […]

White House Weighs Response to North Korea’s Threats

“When does rhetorical bombast turn into a real bomb?” Senator Benjamin Cardin of Maryland, the top Democrat on the Senate Foreign Relations Committee, said in an essay for Foreign Policy magazine. “The president’s inflammatory and irresponsible threat does not keep America or our Asian allies safe.’’Other presidents have responded viscerally to North Korean leaders but not so publicly. Mr […]

Kim’s Rejoinder to Trump’s Rocket Man: ‘Mentally Deranged U.S. Dotard’

Mr. Kim’s foreign minister, Ri Yong-ho, who arrived in New York on Wednesday to attend the General Assembly, also called Mr. Trump “a dog barking.”Asked by reporters in New York what Mr. Kim might have meant by the “highest level of hard-line countermeasure,” Mr […]

Trump’s U.N. Speech Targets North Korea, Iran and Venezuela

By THE ASSOCIATED PRESS | Sep. 19, 2017 | 2:19President Trump threatened to “totally destroy” North Korea, and said that Iran masked a corrupt dictatorship under “the false guise of a democracy.”Related: article: At U.N., Trump Singles Out ‘Rogue’ Nations North Korea and Iran […]

Trump Vows to ‘Totally Destroy’ North Korea if It Threatens U.S.

“No nation on Earth has an interest in seeing this band of criminals arm itself with nuclear weapons and missiles,” Mr. Trump said. “The United States has great strength and patience, but if it is forced to defend itself or its allies, we will have no choice but to totally destroy North Korea. Rocket Man is on a suicide mission for himself and for his regime.”Without mentioning it by name, Mr. Trump also chastised China for continuing to deal with its rogue neighbor. “It is an outrage that some nations would not only trade with such a regime, but would arm, supply and financially support a country that imperils the world with nuclear conflict,” the president said.He went on to assail the Iran agreement, which was negotiated by President Barack Obama and leaders of five other powers and ratified by the United Nations Security Council to curb Tehran’s nuclear program for a decade in exchange for lifting international sanctions. […]