EXPLORATIONS - Erie Canal By Jerilyn Watson Broadcast: Wednesday, November 10, 2004 (MUSIC) VOICE ONE: I'm Shirley Griffith. VOICE TWO: A picture of the Erie Canal. (Picture - DOT) And I'm Steve Ember

发表于:2018-12-15 / 阅读(66) / 评论(0) 分类 Explorations

This is Scientific Americans' 60-Second Science. I am Karen Hopkin, this will just take a minute. Most school kids know that snakes can see with their noses, Vipers in particular have these organs on their noggins that allow them to see heat which he

发表于:2018-12-24 / 阅读(47) / 评论(0) 分类 Scientific American(一)月

Ever get a ringing in your ears after a loud blast of music on your iPod? Thats one example of the usually temporary condition called tinnitus, the sensation of sound even when no sound is being produced. But a new inventioncreated by high school stu

发表于:2018-12-24 / 阅读(87) / 评论(0) 分类 Scientific American(九)月

axis, ['ksis] n 轴(虚构之线,如地轴,坐标轴) 【记】i象虚线-虚轴

发表于:2018-12-30 / 阅读(55) / 评论(0) 分类 不择手段背单词

THIS IS AMERICA - Inside the Complex Worlds of Deafness and Deaf Culture in America Hearing technology offers more hope than ever. Yet the devices are not always welcomed. Also, how one young woman is learning to accept herself for who she is. Trans

发表于:2019-01-11 / 阅读(48) / 评论(0) 分类 VOA慢速英语2008年(五)月

Teen Inventors Fight Tinnitus Irish teenagers Eimear OCarroll and Rhona Togher developed a treatment they hope will help people with tinnitus, an unpleasant ringing in the ears. Cynthia Graber reports Ever get a ringing in your ears after a loud blas

发表于:2019-01-30 / 阅读(91) / 评论(0) 分类 60秒科学