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Earth more sensitive to carbon dioxide than previously thought
Published on Sunday, 6 December 2009 06:00 from ScienceDaily
In the long term, the Earth's temperature may be 30-50 percent more sensitive to atmospheric carbon dioxide than has previously been estimated, reports a new study. The results show that components of the Earth's climate system that vary over long timescales -- such as land-ice and vegetation -- have an important effect on this temperature sensitivity, but these factors are often neglected in current climate models.
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Genetic studies reveal new causes of severe obesity in childhood
Published on Sunday, 6 December 2009 06:00 from ScienceDaily
Scientists have discovered that the loss of a key segment of DNA can lead to severe childhood obesity. This is the first study to show that this kind of genetic alteration can cause obesity.
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New optical sensors enabling lightning-fast trace gas detectors
Published on Sunday, 6 December 2009 06:00 from ScienceDaily
A new generation of optical sensors is enabling the development of robust, long-lasting, lightning-fast trace gas detectors for use in a wide range of industrial, security and domestic applications.
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Brain waves can 'write' on a computer in early tests, researchers show
Published on Sunday, 6 December 2009 06:00 from ScienceDaily
Neuroscientists have demonstrated how brain waves can be used to type alphanumerical characters on a computer screen. By merely focusing on the "q" in a matrix of letters, for example, that "q" appears on the monitor.
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Superbright supernova is first of its kind
Published on Saturday, 5 December 2009 23:00 from ScienceDaily
A superbright supernova found in a dwarf galaxy by a robotic search is the first confirmed example of a pair-instability supernova, the result of the partial core collapse and thermonuclear detonation of an enormously massive star, like the earliest stars in the universe.
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Marine life collected to inventory DNA sequence of all Pacific island's living...
Published on Saturday, 5 December 2009 23:00 from ScienceDaily
Researchers are collecting marine invertebrates on the French Polynesian island of Moorea as part of a massive effort to inventory the DNA sequence of every living species there.
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