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LAUREN FRAYER, HOST: It's 1992. Your hair is gelled up, you're sporting high-tops, maybe still listening to Run-DMC on cassette, and that's the setting for a new coming-of-age novel that's also a look at race in America. The book, titled Green, follo
It was woman against machine at an arm-wrestling competition yesterday in San Diego. And as soon as we say, go, go ahead. In one corner, 17-year-old Panna Felsen, a high school studentand amateur robot builder, 5 feet 7 inches tall and 120 pounds, an
Cassini just a few months ago also flew through the plume, and it measured silicate particles. 卡西尼太空船几个月前又从这些飞溅的水流中穿过,它检测到了硅酸盐颗粒。 Where does the silica come from? 这些硅从哪来的
Science and Technology Plastics There and back again 科技 塑料 旧法新用 An old idea may help solve the problem of plastic waste 一个老方法也许可以帮助解决塑料垃圾的问题 PLASTICS were once regarded as wonder-materials. They
manganese n. 锰(元素符号为Mn) mantle composition 覆盖物的成分 Mercury n. 水星 molten v. 溶化;adj. 熔铸的 monitor n. 监视器,监控 mudflow n.[地] 泥流 Neptune n. [天]海王
BEIJING, Nov. 7 (Xinhuanet) -- A huge asteroid will pass closer to Earth than the moon on Tuesday, but experts say there is no cause for alarm. Asteroid 2005 YU 55 will pass about 300-thousand kilometers from the earth. The giant space rock is about