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This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Just when you thought youd heard everything, scientists have found that the reason you can hear everythingincluding things that are very quietis because
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AGRICULTURE REPORT - Fish Farming By Mario Ritter Broadcast: Tuesday, June 15, 2004 This is Steve Ember with the VOA Special English Agriculture Report. Fish is an important food for many people. In s
农业与发展
The 2009 Nobel Prize in Chemistry goes to Venkatraman Ramakrishnan of the MRC Laboratory of Molecular Biology in England, Yale Universitys Thomas Steitz, and Ada Yonath of the Weizmann Institute of Science in Israel for their studies of the ribosome.
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This is the VOA Special English Development Report. Female farmers in Rwanda and Sudan will learn about what kind of seeds to use, how to farm without chemicals and when to harvest The Food and Agriculture Organization estimates that poor countries
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More Land Being Used for Organic Farming More land around the world is being dedicated to organic farming. The Worldwatch Institute says since 1999 theres been a more than three-fold increase to 37 million hectares. Organic farming is farming without
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AGRICULTURE REPORT - No-Till Farming Gains Ground Around the World By Mario Ritter Broadcast: Tuesday, April 05, 2005 I'm Gwen Outen with the VOA Special English Agriculture Report. Since ancient time
农业与发展