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  • El cisne negro. Nueva edición ampliada y revisada - Nassim Nicholas Taleb December 12, 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 December 12, 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 December 12, 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 December 12, 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 December 12, 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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  • Sobre la teoría de la relatividad especial y general - Albert Einstein December 12, 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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  • Breve historia de mi vida - Stephen Hawking December 12, 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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  • EnCambio - Estanislao Bachrach December 12, 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 December 12, 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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  • Una mochila para el universo - Elsa Punset December 12, 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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What are Diablo Winds?

The winds fanning the historically dreadful California fires are borne from a complicated mash-up of meteorology, physics, geography, and topography. […]

The Monster Surge That Wasn’t: Why Irma Caused Less Flooding Than Expected

The surge also caused flooding in the enclaves of Coral Gables and Palmetto Bay. As Irma, now a tropical storm, traveled further north Monday, its eastern winds continued to push water up into the coasts of eastern Florida and Georgia, with parts of the region facing seven feet of storm surge. In Jacksonville, coastal surges and heavy rains have swamped the central business district and swelled the nearby St. Johns River. Sea-level rise caused by climate change also worsened the storm surge that did occur in many areas. In Miami, sea levels have risen roughly 10 to 12 inches in the past century. “That may not sound like a big deal, but when combined with a four foot surge, it can mean the inundation of thousands of more buildings,” said Dr. Needham. Still, the damage could have been far worse […]

How Hurricane Irma Became So Huge and Destructive

PhotoHurricane Irma as it moved toward Florida on Friday.Credit National Oceanic and Atmospheric AdministrationWASHINGTON — As Hurricane Irma barrels dangerously toward Florida, scientists say that a perfect mix of meteorological conditions has conspired over the past week to make the storm unusually large and powerful.“You need just the right ingredients for a hurricane of this magnitude to last for so long,” said Phil Klotzbach, an atmospheric scientist at Colorado State University. “And Irma has had them all.”Weather forecasters had already expected this summer to be an active hurricane season in the Atlantic Ocean because of warmer-than-average ocean surface temperatures, which provide fuel for hurricanes, as well as weaker-than-average wind shear, which can help to dissipate storms.But even in that context, Irma was special.Irma initially developed near Cape Verde off Africa’s coast on August 30, and a ridge of high pressure kept the storm from wandering off harmlessly into the cooler northern ocean. Instead, it was pushed inexorably westward, with plenty of time to intensify over the warm Atlantic waters.On its journey west, Irma underwent at least six cycles called “eyewall replacement,” when the eye of the hurricane naturally contracts. While storms can weaken during this process, they also can quickly intensify and expand in size once the cycle is complete. And Irma did not weaken — it just grew and grew.GraphicA ‘500-Year Flood’ Could Happen Again Sooner Than You Think. […]

Harvey Live Updates: Death Toll Rises in Texas

• Flooding remained severe in eastern Texas and western Louisiana, but the storm is starting to lose its tropical characteristics as it moves toward the Ohio Valley, according to the National Weather Service.• Anxiety about another hurricane is growing as Irma builds strength on the open Atlantic. Forecasters warned that it was still far too early to know whether its path would lead it toward the United States.• The electricity provider Entergy said about 61,000 customers without power in eastern Texas on Friday morning, down from a peak of 84,000. About 9,500 customers in western Louisiana were also without electricity.• There were about 136,000 flooded structures just in Harris County, the state’s most populous, the county Flood Control District estimated on Thursday night.• Nationally, the average price of a gallon of regular gasoline continues to hit new highs for the year, reaching $2.52 on Friday morning, up from $2.45 on Thursday, according to the AAA motor club.• About 42,000 people were housed overnight at Red Cross and partner shelters in Texas, Suzy DeFrancis, a spokeswoman for the American Red Cross told CNN Friday, an increase since the day before. She said that the organization would probably be in an emergency relief mode until at least Thanksgiving.• In Beaumont, the Neches River was expected to crest on Friday more than seven feet higher than the previous record, and to remain above the old record for several days, the National Weather Service reported. […]

Harvey Live Updates: Storm’s Wrath Shifts After Second Landfall

As the sun emerged and water began to recede in parts of flood-ravaged Houston, Tropical Storm Harvey shifted its wrath to the Beaumont-Port Arthur area of Texas, hitting the region Tuesday and Wednesday with record-breaking rainfall and devastating floods.“Our whole city is underwater right now but we are coming!” Port Arthur’s mayor, Derrick Freeman, said in a Facebook message overnight, as desperate residents sent out calls for help on social media.Water filled homes and submerged roads, evacuees crowded shelters, local officials urged people who needed rescue to hang sheets or towels from windows, forecasters warned that the storm could spawn tornadoes, and the Louisiana State Police closed Interstate 10 heading toward Beaumont, just a few miles from the state line. The rain was expected to continue until Friday.In Houston, Mayor Sylvester Turner said at a midday news conference that he was pressing for the city to return to normal as quickly as possible. He said the city’s George Bush and William P. Hobby airports will re-open at 4 p.m. local time with limited service, and that school will start Sept. 5.Here is the latest:• Local officials have reported at least 31 deaths that were related or suspected to be related to the storm. The victims include a police officer who died on his way to work; a mother who was swept into a canal while her child survived by clinging to her; a woman who died when a tree fell on her mobile home; and a family that is believed to have drowned while trying to escape floodwaters in a van.• More than 32,000 people were in shelters in Texas, and 30,000 shelter beds were available, Gov. Greg Abbott of Texas said at a news conference on Wednesday. Federal Emergency Management Agency officials said 230 shelters were operating in the state, and that 1,800 people had been moved from shelters to hotels and motels.• FEMA has supplied five million meals so far to evacuees, and 210,000 people have registered with the agency for assistance, the governor said.• The National Guard has conducted 8,500 rescues since the storm began, Governor Abbott said, and the police and firefighters in the Houston area have done a similar number […]

A Reporter’s Tale in Houston: When a Story Becomes Your Own Disaster

I live in a compact, two-story, four-bedroom brick house in a leafy community called Bellaire which is full of medical personnel who work nearby at the Houston Medical Center and other professionals. It’s an area of lovely parks where people typically have young children and dogs, and dog walking is the social glue that keeps people talking and knowing each other […]

For Houston’s Homeless, a Terrifying Night Under Siege by Hurricane Harvey

Emergency responders completed more than 1,000 high-water rescues during the night. “Travel across the area is severely hampered, if not impossible,” said an announcement from the Weather Service.City officials urged flooded residents to head to their roofs, not their attics.“We need help it’s like 12 adults and 10 toddlers….can you please call me,” one man wrote to Harris County Sheriff Ed Gonzalez on Twitter.PhotoCars sit abandoned at a flooded gas station after Hurricane Harvey made landfall in Houston.Credit Nick Oxford/Reuters“Many neighbors are screaming for help,” wrote another.“Where?” the sheriff responded. “Keep calling 911.”For the city’s homeless, many of whom did not seek cover ahead of the storm in shelters, it was a terrifying night. Many, like Mr […]