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High-flying Electrons May Provide New Test Of Quantum Theory
- Par Admin Tifilkout.com
- Publié 05/1/2008
- Articles en Anglais
- Pas noté
Researchers at the National Institute of Standards and Technology (NIST) and Max Planck Institute for Physics in Germany believe they can achieve a significant increase in the accuracy of one of the fundamental constants of nature by boosting an electron to an orbit as far as possible from the atomic nucleus that binds it. The experiment, outlined in a new paper,* would not only mean more accurate identifications of elements in everything from stars to environmental pollutants but also could put the modern theory of the atom to the most stringent tests yet...
Emissions Irrelevant To Future Climate Change?
- Par Admin Tifilkout.com
- Publié 05/1/2008
- Articles en Anglais
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Climate change and the carbon emissions seem inextricably linked. However, new research published in BioMed Central's open access journal Carbon Balance and Management suggests that this may not always hold true, although it may be some time before we reach this saturation point...
Wearable Computing: Special Goggles Analyze Eye Movements To Diagnose Disease
- Par Admin Tifilkout.com
- Publié 05/1/2008
- Articles en Anglais
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Sometimes the diagnosis of episodes of illness in schizophrenia,rotatory vertigo, or reading and writing deficits needs electro-oculography (EOG), performed using a special medical apparatus. Andreas Bulling, a doctoral student at the Wearable Computing Lab of ETH Zurich, has developed spectacles that could in future make this technique portable.Jupiter's Rings Are Shaped By Interplay Of Sunlight And Shadow
- Par Admin Tifilkout.com
- Publié 05/1/2008
- Articles en Anglais
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Jupiter's Rings Are Shaped By Interplay Of Sunlight And ShadowUniversity of Maryland and the Max-Planck Institute for Solar System Research in Germany appear to have solved a long-standing mystery about the cause of anomalies in Jupiter's gossamer rings. a new study published in the May 1 issue of Nature, they report that a faint extension of the outermost ring beyond the orbit of Jupiter's moon Thebe, and other observed deviations from an accepted model of ring formation, result from the interplay of shadow and sunlight on dust particles that make up the rings...Ancient Ecosystems Organized Much Like Our Own
- Par Admin Tifilkout.com
- Publié 05/1/2008
- Articles en Anglais
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Similarities between half-billion-year-old and recent food webs point to deep principles underpinning the structure of ecological relationships, as shown by researchers from the Santa Fe Institute, Microsoft Research Cambridge and elsewhere. Analyses of Chengjiang and Burgess Shale food-web data suggest that most, but not all, aspects of the trophic structure of modern ecosystems were in place over a half-billion years ago. It was an Anomalocaris-eat-trilobite world, filled with species like nothing on today's Earth. But the ecology of Cambrian communities was remarkably modern, say researchers behind the first study to reconstruct detailed food webs for ancient ecosystems. Their paper suggests that networks of feeding relationships among marine species that lived hundreds of millions of years ago are remarkably similar to those of today.How to get into Manga
- Par Admin Tifilkout.com
- Publié 02/23/2008
- Articles en Anglais
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How to Get Into Manga
Translated comics are fun to read and is also an easy way to learn about popular Japanese culture.
Global warming 'cannot be stopped'
- Par Admin Tifilkout.com
- Publié 01/10/2008
- Articles en Anglais
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Global warming 'cannot be stopped'
THE world must be more realistic about the chances of preventing climate change and prepare for the inevitability of global warming, the head of one of Britain’s foremost scientific societies will urge today.
Politicians and environmentalists have failed to understand how difficult it will be to curb global warming and are overlooking the importance of adapting to the hotter world it will bring, according to Frances Cairncross, the President of the British Association for the Advancement of Science.
Number crunch Why phone numbers are changing
- Par Admin Tifilkout.com
- Publié 04/2/1995
- Articles en Anglais
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Number crunch - Why phone numbers are changing
Telephone systems worldwide are running short of something that may not seem like a resource at all, much less a finite one: Telephone numbers.
Within a given scheme of area codes and local phone numbers, only so many combinations are available. The proliferation of fax machines, cellphones, direct-dial business lines, and pagers has forced many states and provinces, and some entire nations, to revamp their telephone-numbering schemes to provide more capacity...