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  • El cisne negro. Nueva edición ampliada y revisada - Nassim Nicholas Taleb October 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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  • La teoría del todo - Stephen W. Hawking October 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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  • Ágilmente - Estanislao Bachrach October 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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  • Una mochila para el universo - Elsa Punset October 18, 2017
    ¿Cuánto debe durar un abrazo? ¿De qué sirve llorar? ¿Qué podemos hacer para cambiar nuestra suerte? ¿Tiene algún propósito el enamoramiento? ¿Y por qué es tan inevitable el desamor? ¿Cómo aprendemosa tener miedo? ¿A partir de qué edad empezamos a mentir? ¿Por qué sentimos envidia? ¿Cuántos amigos necesitamos para ser felices? ¿Podemos evitar estresarnos sin […]
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  • Breve historia de mi vida - Stephen Hawking October 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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  • La física del futuro - Michio Kaku October 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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  • ¿Cómo pensar como Sherlock Holmes? - Maria Konnikova October 18, 2017
    Ningún personaje de ficción es más conocido por sus poderes de intuición y observación que Sherlock Holmes. Pero, ¿es su inteligencia extraordinaria una invención de la ficción o podemos aprender a desarrollar estas habilidades, para mejorar nuestras vidas en el trabajo y en casa? A través de ¿ Cómo pensar como Sherlock Holmes? , la periodista y psicóloga Ma […]
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  • EnCambio - Estanislao Bachrach October 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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  • Tricks Any Dog Can Do! - Susan Day October 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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  • Sobre la teoría de la relatividad especial y general - Albert Einstein October 18, 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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Opinion: Who Invented ‘Zero’?

NYT

Original post: Opinion: Who Invented ‘Zero’?

Hurricane Maria Live Updates: Structural Damage at Guajataca Dam Prompts Evacuations in Puerto Rico

“Its been hard to see infrastructure deteriorate in Puerto Rico,” he said, “but it has been harder to meet citizens who have lost it all.”Continue reading the main storyAccording to the United States Army Corps of Engineers, Guajataca Dam is an earthen structure, 120 feet high and nearly 1,000 feet long. It was built in the mid-1920s by the Army Corps of Engineers, but is now owned by the power authority.It lies across the Guajataca River, forming a reservoir that can hold about 11 billion gallons of water that is used for drinking, irrigation and power generation.Sign up for the Morning Briefing for hurricane news and a daily look at what you need to know to begin your day. See how the storm traveled across Puerto Rico, and here is a guide on how to help victims.Aid is being sent to Puerto Rico.Officials in Puerto Rico were corralling incoming aid as rescue and recovery efforts continued after the storm, Mr. Rosselló said on MSNBC on Friday.“There’s still some rain and, of course, the soils are saturated, so it’s still not safe to go outside,” he said. “We’re still on emergency protocol and our main objective right now is making sure people are safe.”PhotoResidents lined up on Friday, seeking water from a spring in an area hit by Hurricane Maria in Cayey, P.R.Credit Carlos Garcia Rawlins/ReutersMr. Rosselló said that the island was getting generators, mattresses, food and water from the Federal Emergency Management Agency, and from others in the private sector.Officials have established a logistics center, which will receive all incoming aid and then distribute it to 12 zones throughout the island, he said.“The people of Puerto Rico are really being tremendous under these circumstances,” he said.Some elderly residents had been found in rural areas without food and necessary medication, Carmen Yulín Cruz, the mayor of San Juan, said on CNN on Friday.Newsletter Sign UpContinue reading the main storyThank you for subscribing.An error has occurred. Please try again later.You are already subscribed to this email.View all New York Times newsletters.“My biggest fear is that we don’t get to those that need it,” she said. […]

Hurricane Maria Strikes and Puerto Rico Goes Dark

Such was the sentiment across the island as the barrage of howling gusts and pounding rain did not cease from the early morning until evening.Francisco Ramirez, 23, weathered the storm inside the convenience store of a gas station in Guaynabo. […]

Eager to Create Blue-Collar Jobs, a Small Business Struggles

‘We Take the Crumbs’On a piece of plastic no bigger than a cigarette lighter rested great hopes.It was a Friday in late spring, and Ms. Quillen was about to join a conference call with one of the world’s largest parts suppliers. In the automotive food chain, big suppliers like Delphi and Johnson Controls constitute Tier One. They sell directly to the carmakers. D.E.P., which primarily sells to other suppliers, is in Tier Two.Continue reading the main story“Tier Ones are eating whole peanuts,” Ms. Quillen says mordantly. […]

As Houston Looks to Recover, Small Towns Now Bear the Brunt

PhotoEvacuees after a rescue in Port Arthur, Tex.Credit Joe Raedle/Getty ImagesNEWTON, Tex. — For the streets of Newton, a small town on the Texas side of the Louisiana state line, to become impassable, “the flood would have to be biblical,” Kristen Rogers was told when she peeked into the sheriff’s office looking for guidance.“That’s what they said about Houston,” replied Ms. Rogers, who was looking for a dry way out of rural Texas on her way to Florida.But as Houston, the urban behemoth that has so far been the focal point in the unfolding drama of Hurricane Harvey, began gingerly to assess the devastation, the storm marched on to conquer a vast new swath speckled with small towns that are home to millions of people who were shocked anew by Harvey’s tenaciously destructive power. Officials faced a population in dire need, but far more difficult to reach.Flooding and rain, topping 47 inches in some areas, pounded 50 counties in southeast and lower central Texas with a combined population of roughly 11 million people […]

Charlottesville and Trump’s Response Reshape Virginia Gubernatorial Race

Mr. Northam said in an interview that “an awakening” had taken place in Virginia after the Charlottesville violence that left one woman dead, many more wounded and a liberal college town convulsing.“We have to be sensitive to all people’s feelings and represent all Virginians,” he said, criticizing his Republican opponent, Ed Gillespie, for not “denouncing the president” by name after Mr. Trump asserted that there were good people marching alongside Nazi sympathizers and Klansmen last weekend.Yet Mr. Northam has little appetite to make Virginia’s counties and cities uproot their memorials to the Confederacy and says the decision should remain up to the localities.Mr. Gillespie also believes local communities should make that decision. He argues that the statues should remain in place, but include added context clarifying that the lost cause they represent would have perpetuated slavery, not just the euphemistic “states’ rights” preferred by some traditionalists.“Rather than glorifying their objects, the statues should be instructional,” Mr. Gillespie said in a lengthy written statement earlier in the week.In an illustration of this state’s complicated politics, and the expectations of each party’s base, it is Mr. […]

Thousands of Yemeni Forces Target Qaeda Stronghold

Yemen, one of the poorest countries in the Arab world, has been convulsed by civil strife for more than two years. In the west, Houthi rebels ousted the government of President Abdu Rabbu Mansour Hadi, the United States’ main counterterrorism partner in the country, and have been fighting a Saudi-led coalition of mostly Sunni Arab countries that back Mr. Hadi.In the country’s central and southern regions, the United States, with help from the United Arab Emirates and allied Yemeni tribesmen, has been waging a shadow war against more than 3,000 members of the Qaeda affiliate and their tribal fighters.Since Feb. 28, the United States has conducted about 80 airstrikes against Qaeda militants in Yemen, Capt. Jeff Davis, a Pentagon spokesman, told reporters in Washington on Friday. […]