2014年8月22日 星期五

2014-08-23 U.S. Spotlight

  National Geographic   
Scientists Find Remnants of One of Universe's Oldest Stars—And It's Huge  National Geographic
Star SDSS J0018-0939 is a small, second-generation star bearing the chemical imprint of one of the universe's first stars. Seen as white here, the star would appear orange to human eyes. Photograph by SDSS/NAOJ. Nadia Drake. For National Geographic.

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  New York Times   
Study Finds That Brains With Autism Fail to Trim Synapses as They Develop  New York Times
David Sulzer, a neurobiologist at Columbia, led a study that may help explain symptoms of autism like oversensitivity to noise, as well as why many people with autism also have epilepsy. Credit Ruth Fremson/The New York Times. Continue reading the main ...


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  PBS NewsHour   
Adult females oust teenage boys as largest gaming demographic  PBS NewsHour
Women are playing more video games — on both consoles like Nintendo's Wii and mobile devices. Photo by Flickr user Clemson. Adult female gamers have unseated boys under the age of 18 as the largest video game-playing demographic in the U.S., ...


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The Surprising Reason Hummingbirds Love Sweets  Discovery News
The first comprehensive map of hummingbirds' 22-million-year-old family tree has just been reconstructed. Published in the latest issue of Current Biology, the family tree was based on careful analysis of 284 of the world's 338 known hummingbird species.

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The Fate of Feminism in Pakistan  New York Times
KARACHI, Pakistan — On Feb. 12, 1983, 200 women — activists and lawyers — marched to the Lahore High Court to petition against a law that would have made a man's testimony in court worth that of two women. The Pakistani dictator Gen. Muhammad Zia ...


   

  PBS NewsHour   
Why social impact investing is going mainstream  PBS NewsHour
Social impact investing is taking off, says Pax World CEO Joseph Keefe, not simply because investors care about diversity and sustainability, but because companies focusing on those issues deliver strong long-term results. Photo by Flickr user le temps de ...


   


Genetic 'Recipe' Found for Lizard Tail Regrowth  Discovery News
Hugging trees feels good and can even be healthy for many animals, according to a study in the latest issue of Biology Letters . There are several perks to being a tree hugger, but a surprising one is that trees help to regulate the hugger's body temperature.

   

  National Geographic   
How the Current Mass Extinction of Animals Threatens Humans  National Geographic
We seem indifferent to the mass extinction we're causing, yet we lose a part of ourselves when another animal dies out. A photo of a whooping crane in Texas. A whooping crane (Grus americana) stands in the shallows of a pond in the Aransas National ...


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How will ALS Ice Bucket Challenge money be spent?  PBS NewsHour
From George W. Bush to Kermit the Frog, scores of celebrities and thousands of others have posted videos of ice water being dumped over their heads. It's all to raise money to battle ALS, a disease that destroys nerve cells in the brain and spinal cord, ...


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'Swarmie' Space Robots Forage Like Ants  Discovery News
Each robot has basic hardware and follows a simple set of rules. When it finds something interesting, it calls over all its Swarmie friends. Dmitri Gerondidakis/NASA. Gallery. Top10SpaceRobot'Selfies':Photos. View Caption +. 'Selfies' are all the rage these ...


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