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1. visibility /ˌvɪzəˈbɪləti/ -- degree of clearness of the atmosphere, with reference to the distance at which objects can be clearly seen With the fog rolling in and visibility approaching zero, it was virtually impossible for planes to land. 在
By Kane Farabaugh Kangerlussuak, Greenland 24 July 2007 Greenland's glaciersshow evidence of global warming Periods of global warming and cooling have caused the terrain of Greenland to change over time -- part of the natural process of the Earth's e
By Al Pessin Pentagon 18 June 2008 A group of American doctors that promotes human rights says it has examined 11 former detainees who were held by the U.S. military, and determined they were systematically tortured with the complicity of medical pe
Acupuncture by Untrained Providers Poses Risks for Kids In the hands of trained practitioners, acupuncture is a safe medical treatment, even for children. But a new study finds when acupuncture is performed by untrained providers, it can pose a serio
By Caroline Sawyer Nairobi 17 August 2007 A United Nations agency report says 600,000 people in southern Somalia, including people in and around the capital Mogadishu, are suffering from severe malnutrition and nearly 300,000 of those require immedia
SCIENCE IN THE NEWS - November 12, 2002: Oldest Evidence of Jesus? / Mapping Genes that Cause Disease / 2002 World Health Report VOICE ONE: This is Steve Ember. VOICE TWO: And this is Bob Doughty with