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Global population is aging as we hit 7 billion
Population experts believe 2011 is the year that Earth will come to have 7 billion human inhabitants. As population grows in this century, experts expect a greater percentage of older people than ever before.
January 19, 2011
Watch Jeopardy pit humans vs. artificial intelligence
Watch this video to see a Jeopardy practice match with humans vs. IBM's Watson program.
January 18, 2011
Ancient Greek coin might recall Jupiter occultation
Professor Robert Weir believes an ancient Greek coin was minted to commemorate an event in which the moon blotted Jupiter from view temporarily.
January 18, 2011
Analysis of tweet-speak reveals regional dialects
What your 140-character tweet reveals about your geography, from scientists at Carnegie-Mellon. Plus how to tweet the word "cool" in both northern and southern California-eeze.
January 17, 2011
Science without soul: Warning from MLK Jr.
In accepting the Nobel Peace Prize in 1964, Dr. King said, "Our problem today is that we have allowed the internal to become lost in the external. We have allowed the means by which we live to outdistance the ends for which we live ... "
January 17, 2011
How cell membranes shape our life
Photosynthesis depends on cell membranes, and human beings can't hear without a membrane: the eardrum. Is another membrane needed to rescue us from climate catastrophe?
January 15, 2011
Why do fatty foods taste so good?
Why do we like fatty foods so much? It seems we might be naturally attracted to their taste and feel.
January 14, 2011
Listening to music releases same brain chemicals as food, drugs, sex
Why do we love music so? A new study suggests it is because listening to music releases dopamine, the same brain chemical associated with food, drugs, and sex.
January 14, 2011
How much does human waste contribute to climate change?
A 2010 U.N. report suggests that it takes a tremendous amount of energy to process human waste around the globe. Find out ways to reduce this energy cost.
January 14, 2011
Good at video games? Illinois researchers could have predicted that, by imaging your brain
Illinois researchers studied 34 people who - after having their brains imaged - each spent 20 hours learning to play a video game called Space Fortress.
January 13, 2011
