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American Scientist
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Extra! Extra! Our March–April issue is now online! Filled with content including:
• Communicating with animal pheromones
• Delivering medicine with carbon nanotubes 
• Learning when and when not to lie
• Simulating the Milky Way galaxy by tracing the motions of other celestial objects for over billions of years
• Uncovering connections between climate change and cholera
• Remembering the father of epigenetics
• And many other scientific, engineering and technological content!

Read more: www.americanscientist.org

Want full access to all content both past and present? Subscribe today!: https://ecom.sigmaxi.org/amsci.php?action=new_individual_sub

(Cover photo by Alexander Wild.)

#Science   #magazinecover   #engineering   #SciComm   #Animals   #nanotechnology   #medicinehealth   #children   #lying   #compsci   #climatechange   #BHM   #Blackhistorymonth   #genetics   #Sciart   #bookreviews   #books   #ecology   #art   #Photography   #Astronomy   #Biology
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Dr. John F. Nash, Jr., portrayed in the movie "A Beautiful Mind," jointly received the Abel Prize for his work in mathematics.

As an undergraduate, he started the modern theory of economic bargaining. His graduate thesis created the idea of a Nash equilibrium, which is now regarded as the basic building block of the theory of games. The highs and lows of Nash's life are out of the range of most human experiences.

Read Ken Binmore's book review on "A Beautiful Math: John Nash, Game Theory, and the Modern Quest for a Code of Nature," by Tom Siegfried: bit.ly/1BOr44j

#bookreview   #JohnNash   #games   #mathematics  
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It's Manatee Appreciation Day! The endangered Florida manatee is a gentle, bewhiskered herbivore that can reach 4 meters in length, weigh up to around 2,800 pounds (1,300 kilograms) and live over 60 years!

These marine mammals are routinely injured and sometimes killed by collisions with recreational boats, barges and commercial ships. Could altering some of the technology in boats decrease these collisions?

Read more on how marine researchers are using bioacoustics to determine a technological solution to this issue: http://ow.ly/KMvMJ

#Manatees #Marinescience #Science #Biology
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Marie Curie was a well-known physicist and chemist who did pioneering research on radioactivity. She also won two Nobel Prizes where she was the first woman to win one as well as the first person and only woman to win it twice! Alongside all of her work in research and making strides in the scientific world, she was also a mother. 

How does having children potentially affect a woman's career in science, technology, math and engineering fields? Read one of our most popular articles, "When Scientists Choose Motherhood" by Wendy M. Williams and Stephen J. Ceci: http://www.amsci.org/issues/pub/when-scientists-choose-motherhood

#womenshistorymonth   #womenintech   #Womeninscience   #History   #Science   #motherhood   #children  
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"The shuttle offers broad access to space at significantly lower cost than is possible by existing vehicles. Its versatility will open new avenues of opportunity for space science and the utilization of space that are far beyond our capabilities today"—Dr. Wernher von Braun.

Happy 103rd Birthday to von Braun! Even though he retired from +NASA before the launch of Apollo 17, his influence extended into the era of a vehicle ‘popularly known as the space shuttle.’ 

He discusses the shuttle, which he notes ‘will be the first true 'aerospace' vehicle in that it can fly and maneuver in both space and the atmosphere,' in his 1972 November–December article for American Scientist, ‘The Reusable Space Transport': http://ow.ly/KBslo

#History   #SpaceShuttle   #Space   #Astronomy   #Technology  
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Tomorrow, Captain James Tiberius Kirk, born March 22, 2233, celebrates his -218th birthday. What better excuse to enjoy a science movie marathon? We've put together a list of seven movies we think he'd love, along with two he'd love to hate--or perhaps just hate himself for loving. "'Fascinating, Jim': 9 Movies for a SciFi Icon's Birthday": http://www.americanscientist.org/blog/pub/fascinating-jim-9-movies-for-a-scifi-icons-birthday #startrek #scifi
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Tolerating Antarctica's insane –40° Celsius winter temperatures is merely one reason why Adélie penguins are the ideal animal to study for adaptive evolution in terms of climate change: bit.ly/1EIKee8 
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Re-creating what's happening deep within the Sun on a way smaller scale. Scientists at +Sandia National Labs are investigating the Sun's seismic activity and other properties to find clues to its inner makeup: http://bit.ly/1M4U5Ef
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Hi +Jon Eckberg! This image for this particular article is from NASA. And I can see the familiarity :)!
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Allowing African participants to dive into the discovery of biodiversity in their surrounding environment as well as working with locals to classify species, mainly frogs, are only a couple of reasons why David C. Blackburn believes more biologists need to teach in Africa.

Read his full blog: http://www.amsci.org/blog/pub/why-more-biologists-need-to-teach-in-africa

#STEM   #Biology   #citizenscience   #Africa   #education   #blog   #Science  
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"If we are to find human pheromones, we need to treat ourselves as if we were a newly discovered mammal"—Dr. Tristram Wyatt, senior research associate at the University of Oxford.

His paper on the search for human pheromones was published in "Proceedings B" earlier this month: http://t.co/YSJ17pDXdV

Our most recent cover was also by Dr. Wyatt regarding how all animals communicate via pheromones, and how human behaviors are probably influenced by pheromones as well. Read more: http://www.amsci.org/issues/feature/2015/2/animals-communicate-via-pheromones/1

#Pheromones   #Biology   #Science   #Research  
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It's World Water Day! Today is for celebrating water, making a difference for the global population who suffer from water-related issues, and preparing for future management of water.

Check out some of our science and health content on the topic of water:
• Water Quality Degrades As Development Increases Along Coastlines Worldwide: http://www.amsci.org/issues/pub/2015/2/problem-of-nutrient-runoff-on-coast

• Water News: The Good, The Bad, and The Virtual: http://www.amsci.org/issues/pub/water-news-bad-good-and-virtual/1

• Arsenic, the 'King of Poisons,' is Found in Food and Water: http://www.amsci.org/issues/feature/2015/1/arsenic-the-king-of-poisons-in-food-and-water (Active Sigma Xi members and American Scientist subscribers access)

• A North Dakota lake swells due to climate change and impacts people and property with no easy fix in sight: http://www.amsci.org/issues/pub/runaway-devils-lake

• Impacts of Industrial Animal Production on Rivers and Estuaries: http://www.amsci.org/issues/feature/2000/1/impacts-of-industrial-animal-production-on-rivers-and-estuaries

• Book Review on "Fresh Water from the Ocean": http://www.amsci.org/bookshelf/pub/fresh-water-from-the-ocean-by-cecil-b-ellis-et-al

#WorldWaterDay #Water #Science #Research #Books #Conservation #Health #Environment
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The Casimir effect explains why two parallel objects are attracted to each other even in a vacuum.

Watch this animation that interprets what happens to the electromagnetic field because of quantum effects and virtual photons, to show what results when two plates are brought close together in such an environment: https://youtu.be/x9NBfUXvq_E

The article related to this animation can be viewed by active Sigma Xi members and American Scientist subscribers: http://www.amsci.org/issues/feature/2014/4/engines-powered-by-the-forces-between-atoms

#Physics #Science #Animation
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An authoritative source of science and technology news and features since 1913.
Introduction
American Scientist has been published since 1913 by Sigma Xi, The Scientific Research Society. It entails in-depth articles, book reviews and graphics regarding various scientific fields. In recent years, it has been honored with many awards for editorial, design and illustration quality. Read faithfully by Sigma Xi's membership of distinguished scientists and engineers, the magazine is now available on newsstands around the world, as well as by individual or institutional subscription.