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  • El cisne negro. Nueva edición ampliada y revisada - Nassim Nicholas Taleb November 24, 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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  • La teoría del todo - Stephen W. Hawking November 24, 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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  • La física del futuro - Michio Kaku November 24, 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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  • Física General Esencial - Agustín Vázquez Sánchez November 24, 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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  • Ágilmente - Estanislao Bachrach November 24, 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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  • Tricks Any Dog Can Do! - Susan Day November 24, 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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  • Sobre la teoría de la relatividad especial y general - Albert Einstein November 24, 2017
    Entre el Electromagnetismo y la Mecánica newtoniana existe una fórmula de bisagra: la teoría de la relatividad especial y general. La importancia del nuevo marco planteado por Albert Einstein se entiende por lo siguiente: la percepción del tiempo y el espacio es relativa al observador. ¿Qué significa esto? Si usted viaja a una velocidad mayor que la de la lu […]
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  • EnCambio - Estanislao Bachrach November 24, 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 November 24, 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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  • Introducción a la Ciencia - Isaac Asimov November 24, 2017
    Introducción a la ciencia es un libro publicado en dos volúmenes donde Asimov hace un extenso relato de los descubrimientos científicos en todos los campos de la ciencia.La lectura de él es fácil y los temas son relatados brillantemente comenzando desde los primeros conocimientos sobre el tema (generalmente desde los griegos o antes, o en algunos casos en lo […]
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Clinton Responds to Recent Attacks

By THE ASSOCIATED PRESS | Sep. 19, 2016 | 2:05Hillary Clinton said at a news conference in White Plains that she planned to deal with “the bad guys,” jihadists and violent extremists, rather than an entire religion.Related: article: After Bombings, Hillary Clinton and Donald Trump Clash Over Terrorism […]

Trump Outlines Threat of Terrorism

By THE ASSOCIATED PRESS | Aug. 15, 2016 | 1:16Donald J. Trump, the Republican presidential nominee, discussed the rise of global terrorism and the Islamic State and the necessity of combating it.Related: article: Donald Trump’s Terrorism Plan Mixes Cold War Concepts and Limits on Immigrants […]

Indian state aims to plant record-breaking 50 million trees in one day

Uttar Pradesh is going to be looking a lot greener after a marathon 24-hour tree-planting frenzy. […]

Indian state aims to plant record 50 million trees in one day

Uttar Pradesh is going to be looking a lot greener after a marathon 24-hour tree-planting frenzy. […]

Study: No Increase In Prevalence Of Marijuana Use Disorders

By Paul Armentano, NORML Deputy Director A report published last fall claiming that an estimated three in ten consumers of cannabis suffer from a ‘use disorder’ has been dismissed in a new study published in JAMA Psychiatry. Investigators at the Washington School of Medicine in St. Louis assessed trends in marijuana use and the prevalence […]

This is what a volcano combined with a lightning storm looks like (video)

Streaks of lavender lightning make a cameo appearance during the eruption of Japan’s Mount Sakurajima. […]

German Tensions Over Migrants Rise After Paris Attacks

(BERLIN) — As a local lawmaker in the east German city of Magdeburg who regularly speaks out against the far right, Soeren Herbst has endured years of animosity. But the sight that greeted him outside his home last week made the Green Party politician realize that the abuse had reached a new level. Someone had sprayed a gallows on the front of his house, along with Herbst’s name and the word “Volksverraeter” — traitor to the German people. “Now we indeed have a new situation,” Herbst said in a telephone interview the day after the incident. “You start worrying about your safety and that of your family.” The incident reflects a growing public tension in Germany, where far-right groups were quick to seize on the Paris terror attack as evidence of a need to curb immigration. While it’s the extremists on the far right who are grabbing most of the headlines, mainstream Germans are increasingly being drawn into inflammatory rhetoric — and at times anti-foreigner sentiment. The country’s normally staid — some might say dull — political debates have in particular become inflamed with vitriol amid the influx of hundreds of thousands of asylum seekers in recent months. Nazi comparisons, once considered beyond the pale of polite political discussion in a country still grappling with its genocidal past, have become a common slur. The co-founder of anti-Islam group PEGIDA, Lutz Bachmann, last week likened Germany’s justice minister to Nazi demagogue Joseph Goebbels; in response, a senior official in Justice Minister Heiko Maas’ party labeled Bachmann a “crazy fascist.” “The situation that we have at the moment is leading to a split in society where people are drifting apart,” said Joachim Trebbe, a communications researcher at Berlin’s Free University. Just a few months ago newspapers were full of reports about refugees being warmly received at German train stations, he noted. Now the tone has changed to one where migrants are automatically linked to the word “crisis” as authorities struggle to cope with tens of thousands of arrivals each month. Social media and the immediacy of modern communications have become an easy vent for popular anger. And this week, police raided 10 buildings in Berlin as part of a crackdown on far-right hate speech in social media networks. “Nowadays everybody has the opportunity to directly criticize politicians without having to write a letter to the newspaper, which might not get printed,” said Trebbe. Authorities have already begun working with Facebook to crack down on the most extreme hate speech, which is illegal in Germany but doesn’t fall afoul of the social networking site’s community rules. Commentators have coined a term to describe the often middle-aged, middle-class Germans venting their anger in online forums and at PEGIDA protests: “Wutbuerger” — literally “angry citizens.” Some of those attending PEGIDA rallies have told The Associated Press that they aren’t xenophobes, but rather ordinary people who simply feel frustrated that the government isn’t listening to their concerns. Sensitive to the growing misgivings among many Germans about how their country is meant to cope with the sheer number of immigrants, the government has agreed on measures intended to quickly process those who stand little chance of getting asylum, vetting more people at the border, and distributing migrants across Europe. Mock gallows and chants of “lying press” at anti-immigrant rallies aren’t the only results of the wave of fury sweeping Germany. The steep rise in attacks on refugee shelters, including arson, has garnered the greatest attention abroad. But security officials warn that there appears to be a general willingness emerging in Germany to use violence for political reasons. Last month, a writer for Berlin’s Tagesspiegel newspaper who had criticized the far right in a column was struck from behind in the leafy Charlottenburg district by someone shouting “you dirty leftist pig.” A few days later, a TV crew was attacked while covering a far-right protest in the north of Berlin. “We can’t rule out that these were politically motivated attacks,” Jens Berger, a spokesman for Berlin police, told The Associated Press. In the most serious physical attack, Cologne mayoral candidate Henriette Reker was stabbed in the neck while campaigning in mid-October, the day before the election, by a man who said he wanted to take a stand against refugees. Reker, who won the election, had been in charge of housing migrants in the western city. The suspect, who has been charged with attempted murder, is a 44-year-old man who authorities say has past links to the area’s neo-Nazi scene. But last month, Germany’s top security official warned that two-thirds of suspects linked to attacks on refugees and asylum homes were previously unknown to the police. Thomas de Maiziere, the country’s interior minister, expressed particular concern about the way rumors spread rapidly on social networking sites even after proven false. The gallows on Herbst’s house in Magdeburg appeared two days after the politician had written about an apparently racist attack in the city. Three migrants were attacked by up to 30 men wielding baseball bats. The alleged assailants had coordinated their attack on publicly accessible social media websites, said Herbst. Officials at the state intelligence agency in Saxony-Anhalt, where Magdeburg is located, recently expressed concern about where the growing radicalization might lead. Previously, educated Germans had been able to tell the difference between neo-Nazi groups and mainstream political opinion. “These boundaries are increasingly dissolving though,” said Jochen Hollmann, the head of the section dealing with far-right extremists, in comments to the Mitteldeutsche Zeitung. Markus Feldenkirchen, a journalist with the respected weekly Der Spiegel, recently likened the mood in Germany to that of a barroom brawl. Recalling how Germany’s Weimar Republic descended into fascism, Feldenkirchen said Germans could rightfully be proud of their peaceful post-war democracy but “nobody can be certain that this achievement will be safe forever.” Hours after the attacks in Paris, in which more than 120 people were killed, online commentators accused the German government of wilfully allowing such assaults to take place. “Merkel should be locked up, she’s equally responsible for this terror attack,” one commentator by the name Katharina Rutkowski wrote on a Facebook page called Aufwachen Deutschland — Wake up Germany. Frustrated at the flood of online hate speech, some activists are trying a new approach: They respond to anti-migrant comments posted on Facebook by saying that one euro ($1.10) will be donated to projects helping refugees or people trying to leave the far-right scene. The more anti-migrant comments, the more donations those projects get. The website, called “Hate Helps,” has so far collected more than 2,300 euros in donations. […]