This is Scientific American 60 second Science, Im Sophie Bushwick. Got a minute? It was thought that saltwater seas separated Central and South America millions of years ago. But a recent discovery may render that idea all wet. Because archaeologists

发表于:2018-12-24 / 阅读(57) / 评论(0) 分类 Scientific American(三)月

By Lisa McAdams Moscow 12 September 2006 U.S. pop music star Madonna is scheduled to entertain tens of thousands of fans in Moscow, Tuesday night, in her first concert in Russia. The show had been scheduled for September 11 - the fifth anniversary o

发表于:2019-01-07 / 阅读(136) / 评论(0) 分类 2006年VOA标准英语(九月)

Now, what may be the ultimate Internet service, one that helps you clean out the garage? NPR's Ted Robbins explains. Deron Beal is really proud of his home office in Tucson. More to the point he's proud of how he got what's in the office - a compu

发表于:2019-01-08 / 阅读(128) / 评论(0) 分类 2006年NPR美国国家公共电台

Dwindling US Space Budget Worries Scientist It's a trend that troubles astrophysicist Neil deGrasse Tyson, an outspoken advocate for space research and exploration. The director of the American Museum of Natural Historys Rose Center for Earth and Spa

发表于:2019-01-13 / 阅读(56) / 评论(0) 分类 VOA标准英语2012年(四月)