Science & Technology
"This is the first time anyone has looked at the odor-tracking behavior of individual birds in the wild using remote techniques," said Gabrielle Nevitt, professor of neurobiology, physiology and behavior at UC Davis and an author on the study with UC Davis graduate student Marcel Losekoot of the Bodega Marine Laboratory and Henri Weimerskirch of the Centre National de la Recherche Scientifique, France.
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| ©Unknown |
Evidence of pagan rituals involving swans and other birds in the Cornish countryside in the 17th century has been uncovered by archaeologists.
Since 2003, 35 pits at the site in a valley near Truro have been excavated containing swan pelts, dead magpies, unhatched eggs, quartz pebbles, human hair, fingernails and part of an iron cauldron.
The software crunches a mass of calculations on the geometry and symmetry of the face, including so-called "golden ratios" of proportions between the eyes, nose, ears and lips singled out in previous research into the mystery of beauty.
The team put the program through its paces in tests on 18 male and 18 female volunteers aged 19 to 61. The human guinea pigs were shown pictures of 420 people drawn from the general population, equally divided among men and women, and were asked to rate the faces for attractiveness on a scale of one to 10.
The rediscovery of this book is of much more than scholarly or antiquarian interest, for it has been suggested that its chess puzzle diagrams were not only designed by Leonardo da Vinci, but also drawn by him and, the most tantalising prospect of all, perhaps even composed by him.
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| ©Unknown |
The Sun's core is about 6000 degrees C, but its outer layer, the Corona, which is filled with a strong magnetic field, is 200 to 300 times hotter.
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| ©NASA |
| Typical image of the solar corona clearly revealing the complex tangle of heated magnetic loops from TRACE. |
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| ©Jan Curtis of the Geophysical Institute at the University of Alaska |
| This photograph of an aurora was taken in Alaska. |
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| ©Greg Kuebler/JILA |
| NIST quantum logic clock |











