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  • Tricks Any Dog Can Do! - Susan Day September 20, 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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  • La teoría del todo - Stephen W. Hawking September 20, 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 September 20, 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 September 20, 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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  • El gran diseño - Stephen Hawking & Leonard Mlodinow September 20, 2017
    Aun antes de aparecer, este libro ha venido precedido, en todos los medios de comunicación, de una extraordinaria polémica sobre  sus conclusiones: que tanto nuestro universo como los otros muchos universos posibles surgieron de la nada, porque su creación no requiere de la intervención de ningún Dios o ser sobrenatural, sino que todos los universos pro […]
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  • ¿Cómo pensar como Sherlock Holmes? - Maria Konnikova September 20, 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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  • Ágilmente - Estanislao Bachrach September 20, 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 September 20, 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 September 20, 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 September 20, 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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Americans used less energy in 2015 than in previous year, solar use makes a big leap

There were a lot of factors that led to the dip in energy use, but hopefully it’s a continuing trend. […]

A thermal bridge too far: As much as 30% of heat loss can be caused by bad design

Architect Elrond Burrell explains the importance of understanding thermal bridges […]

We’re basically putting the cast of Finding Nemo in a blender

blending nemo

We’re basically putting the cast of Finding Nemo in a blender

By on 4 Sep 2015commentsShare

First, there was Finding Nemo. Then, there was Finding Dory. And now, coming to a warm and acidified ocean near you, there’s Finding Squirt’s Thermal Niche, a coming-of-age story about a young sea turtle who fights his way poleward in search of cooler temperatures. Along the way, he learns the true meaning of survival as he goes head to head with other species either on the move or defending their native waters from climate change refugees like Squirt.

You’re welcome, Pixar. I’ll take my payment in survival gear.

Unfortunately, this isn’t a movie plot. It’s real life. Climate change refugees (human or otherwise) are already a growing concern on land, but thanks to rising ocean temperatures, they’re a problem under the sea, too. Here’s more from the New York Times:

According to a 2013 study, marine species are pushing their range boundaries poleward, away from the Equator, at an average speed of 4.5 miles a year. That’s 10 times as faster as the speed at which species on land are moving.

… Global warming is going to reshuffle ocean ecosystems on a scale not seen for millions of years. Marine biologists can’t yet say what these new habitats are going to be like.

“If you put a bunch of species in a blender, you’re not entirely sure what’s going to come out,” said Malin L. Pinsky, a marine biologist at Rutgers University.

Actually, if you put a bunch of sea creatures in a blender, you’d probably get something akin to Soylent, except not as gross.

How all that reshuffling happens will have big ramifications for fish and fishermen alike. In a study published earlier this week in Nature Climate Change, scientists looked at the habitat ranges of more than 13,000 sea creatures to figure out whether and where Squirt et. al. will have to migrate to over the course of this century. From the New York Times:

The researchers noted the warmest and coldest temperatures in which each species has been observed. If the future plays out like the past, the scientists reasoned, each species will probably move in order to stay in its “thermal niche.”

The journey will be easier for some animals than others, the study found. Some will be able to swim through open ocean to escape overheated waters. Others may find their paths blocked by landmasses or shallow seas.

The scientists also compared the projected biodiversity of each region of the ocean in 2100 with that seen today. The tropics will lose a substantial fraction of their species, the researchers found. And there won’t be any new species immigrating into the tropics to take their place.

OK — so maybe Finding Squirt’s Thermal Niche would work better as a dystopian young adult film, rather than a feel-g00d Pixar movie. Picture it: Squirt is now an angsty 18-year-old on bad terms with his father, Crush. The two get separated during the migration, and Squirt falls in with a group of low-life sharks that prey on scared refugees. When the gang comes across Dory — now a homeless drug addict — Squirt has to choose between risking his life to save an old friend and turning his back on everything he once was. Which way will he swim? Will he ever reunite with Crush? Can he find Squiggle, the turtle he’s loved for years but never had the shell to ask out? Or will he just starve to death halfway through the movie?

Spoiler alert: It’s probably that last one.

Source:

Warming Oceans Putting Marine Life ‘In a Blender’

, New York Times.

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[…]

Can robots push down the price of solar electricity?

Utility-scale solar farms often stretch across hundreds of acres—massive projects that rely on crews of workers to install, and later keep clean, row after row of panels.

One California-based startup is betting its robots—dubbed Rover and Spot—can speed up the installation and maintenance of large-scale solar farms enough to bring the price of solar electricity in line with natural gas.

Alion Energy’s two machines—Rover takes care of installation and Spot cleans the panels—will be used in three projects in the next few months in California, China and Saudia Arabia, the New York Times reported.

Alion Energy says Rover and Spot, which were unveiled in June 2013, can build utility-scale plants two times faster than the conventional installation with 50 percent less labor required.

Alion Energy uses extruded concrete rails to replace metal posts, racks and cable trenches. Rover works with the concrete rail system to carry and mount panels, an installation process that eliminates low-skilled tasks such as bolt-tightening, ditch-digging and hauling heavy glass over uneven ground, the company says.

Alion Energy, along with other several other companies, are finally tackling an area within large-scale solar projects that has so-far received little attention: installation and maintenance. While module and solar cell prices have dropped, labor, engineering and permitting has risen.

QBotix has developed a robot that controls tracking operations to maximize output from solar panels, while Serbot makes robots that can clean solar arrays, the NYT reported.

The U.S. Department of Energy’s National Renewable Energy Laboratory has developed its own solution for concentrating solar power plants by combining GPS, an infrared camera and some fancy software, and then loading it all onto the back of a pickup truck. The so-called Thermal Scout can identify and analyze bad receiver tubes, which typically number in the thousands, as fast as a truck can drive between the rows of mirrors at a CSP plant.

Photo: Alion Energy

[…]

World’s smallest wireless LED lamp casts a big shadow

Billed as the world’s smallest wirelessLED lamp, the MR16 delivers quality light, energy savings, and eliminates the need for a light switch. […]