Studies that will be released today show that fish, birds and mammals in New England have significant amounts of mercury in their bodies. The studies find the toxic metal in some unexpected habitats and they suggest that power plants in the Midwest a

发表于:2018-12-17 / 阅读(133) / 评论(0) 分类 2009年NPR美国国家公共电台7月

The Mercury Mess By Samantha Levine / 2004, as first appeared in U.S. News nbsp; What are the dangers of mercury in fish? Can the mercury mess be cleaned up? 1 Are these fish safe to eat?” It’s a

发表于:2018-12-19 / 阅读(48) / 评论(0) 分类 彭蒙惠英语

This is Scientific American's 60-second Science, I'm Steve Mirsky. Got a minute? Back on January 15th, US Airways Flight 1549 made that amazing water landing in the Hudson after both engines were taken out by Canada geese, which can weigh eight pound

发表于:2019-01-08 / 阅读(63) / 评论(0) 分类 Scientific American(六)月

VOICE ONE: Im Steve Ember. VOICE TWO: And Im Faith Lapidus with EXPLORATIONS in VOA Special English. This week, we tell about a growing threat to airplanes around the world. And we hear about objects in space that are threatening satellites and the

发表于:2019-01-11 / 阅读(59) / 评论(0) 分类 VOA慢速英语2009年(四)月

SCIENCE IN THE NEWS - Mercury in Fish / Life on Land / The Goldman Environmental Prize By Broadcast: Tuesday, May 11, 2004 (THEME) VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English. I'm B

发表于:2019-01-30 / 阅读(189) / 评论(0) 分类 科技之光

By Paul Sisco Washington, DC 15 February 2008 Scientists have started analyzing data and images acquired when the Messenger space probe passed within 200 kilometers of the planet Mercury last month. It was the first flyby of the solar system's inner-

发表于:2019-02-06 / 阅读(78) / 评论(0) 分类 VOA常速英语2008年(二月)