Scientific American y el Eyjafjallajökull

Les recomiendo ampliamente esta publicación en línea gratuita de la revista Scientific American. Es muy profesional, tiene información muy actualizada sobre investigaciones o descubrimientos recientes en el mundo de las ciencias y las matemáticas, muy interesantes. También publica podcasts, para lo que les guste escuchar las noticias y practicar su inglés🙂 ¡Tienen más de 100 años publicando continuamente! Además, esta última edición trae una buena nota sobre el, todavía en erupción, volcán Eyjafjallajokull en Islandia. FFM.

From: Scientific American Newsletters <newsletters>

Date: 2010/4/20
Subject: Weekly Review: How Long Will Iceland’s Volcano Keep Planes Grounded?

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iceland-volcano-airspace_1.jpgASK THE EXPERTS
How Long Will Iceland’s Volcano Keep Planes Grounded?

As the volcano in Iceland continues to erupt, travelers in Europe are left to wonder how long local airspace will remain closed. A volcanologist from the Smithsonian explains why this eruption could cause long-term disruption

> Related: How do volcanoes affect world climate?

ScientificAmerican.com is 1 of 5 nominees for this year’s Webby Awards in the Science category. A heartfelt thanks to all our readers for being continually supportive of the magazine and web site. If you could spare a moment, we would greatly appreciate a vote in our favor: http://webby.aol.com/society/science

Established in 1996, the Webby Awards is the leading international award honoring excellence on the Internet.

60SEarth_75x75.gif60-SECOND EARTH PODCAST
What’s the Most Recycled Product in the U.S.?

It’s not paper, plastic or even aluminum. David Biello reports

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blog-obs_75.jpgOBSERVATIONS
Mat of microbes the size of Greece discovered on seafloor

Microbes constitute 50 to 90 percent of the oceans’ total biomass

guestblog_75.jpgGUEST BLOG
DMT is in your head…

…but it may be too weird for the psychedelic renaissance

60SS75x75.gif60-SECOND SCIENCE PODCAST
Engineered Virus Harnesses Light to Split Water
Scientific American‘s 2006 researcher of the year, M.I.T.’s Angela Belcher, has engineered a virus so that it captures light energy and uses it to catalyze the splitting of water, a first step in a possible new way to generate hydrogen for fuel cells. Cynthia Graber reports

blog-extinct_75.jpgEXTINCTION COUNTDOWN
Don’t eat that

Endangered quolls may benefit from aversion therapy

SCIENTIFIC AMERICAN MIND
What Is the Memory Capacity of the Human Brain?

Paul Reber, professor of psychology at Northwestern University, replies

60SPsych_75x75.gif60-SECOND PSYCH PODCAST
Making a Decision? Take Your Time

A recent study shows that when faced with a decision, it’s best to take some time–relax and cool off–so logical thinking can guide us to the best choice. Christie Nicholson reports

quantum-random-numbers_1_thumb.jpgNEWS
Quantum Effects Exploited to Generate Random Numbers

Measuring the internal states of entangled ions yields binary digits that demonstrably stem from the indeterminacy of quantum mechanics, but the process is laborious

south-african-hominin-fossil_1_thumb.jpgNEWS
Spectacular South African Skeletons Reveal New Species from Murky Period of Human Evolution

The discoverers argue that the nearly two-million-year-old fossils could be ancestral to us–but other scientists are not so sure

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Health insurers make big bucks from Big Macs

Health and life insurance companies are out to make a buck, and one way they augment their income is by investing in other industries, including the top five publicly traded fast food chains

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