The premier online source for science news since 1996. A service of the American Association for the Advancement of Science. http://www.eurekalert.org en-us Copyright 2009 by the American Association for the Advancement of Science Sun, 22 Nov 2009 12:16:00 EST EurekAlert! http://www.eurekalert.org/images/logo.gif http://www.eurekalert.org The premier online source for science news since 1996. A service of the American Association for the Advancement of Science. 1440 webmaster@eurekalert.org (EurekAlert!) The ocean is a potentially vast source of electric power, yet as engineers test new technologies for capturing it, the devices are plagued by battering storms, limited efficiency and the need to be tethered to the seafloor. http://www.eurekalert.org/pub_releases/2009-11/nsf-otc111909.php Thu, 19 Nov 2009 00:00:00 EST http://www.eurekalert.org/pub_releases/2009-11/nsf-otc111909.php Researchers Matthew Salzer and Malcolm Hughes of the University of Arizona's Laboratory of Tree-Ring Research and their colleagues have analyzed tree-rings from bristlecone pine trees at the highest elevations, looking for the reasons behind an extraordinary surge in growth over the past 50 years. Their findings appear in the Nov. 16 early online edition of Proceedings of the National Academy of Sciences. http://www.eurekalert.org/pub_releases/2009-11/nsf-gsi111309.php Mon, 16 Nov 2009 00:00:00 EST http://www.eurekalert.org/pub_releases/2009-11/nsf-gsi111309.php Spurred by a warming climate, daily record high temperatures occurred twice as often as record lows over the last decade across the continental United States, new research shows. http://www.eurekalert.org/pub_releases/2009-11/nsf-rhf111209.php Thu, 12 Nov 2009 00:00:00 EST http://www.eurekalert.org/pub_releases/2009-11/nsf-rhf111209.php A new National Science Foundation report shows an increase in the number of academic degrees awarded to minority students since 2004, the last time such data were published. http://www.eurekalert.org/pub_releases/2009-11/nsf-mse110409.php Wed, 04 Nov 2009 00:00:00 EST http://www.eurekalert.org/pub_releases/2009-11/nsf-mse110409.php A new study reveals the important role inherited wealth plays in sustaining economic inequality in small scale societies. A team of 26 anthropologists, statisticians and economists based at the Santa Fe Institute in New Mexico amassed an unprecedented data set allowing 43 estimates of a family's wealth inheritance and found that financial inequality among populations largely depends on the "technologies" that produce a people's livelihood. http://www.eurekalert.org/pub_releases/2009-10/nsf-pl103009.php Fri, 30 Oct 2009 00:00:00 EDT http://www.eurekalert.org/pub_releases/2009-10/nsf-pl103009.php A team of Harvard chemists led by X. Sunney Xie has developed a new microscopic technique for seeing, in color, molecules with undetectable fluorescence. The room-temperature technique allows researchers to identify previously unseen molecules in living organisms and offers broad applications in biomedical imaging and research. http://www.eurekalert.org/pub_releases/2009-10/nsf-spi102309.php Fri, 23 Oct 2009 00:00:00 EDT http://www.eurekalert.org/pub_releases/2009-10/nsf-spi102309.php