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如何切割纳米管
10-12-20 A pipefitter knows how to make an exact cut on a metal rod. But it's far harder to imagine getting a precise cut on a carbon nanotube, with a diameter 1/50,000th the thickness of a human hair. In a paper published this month in the British journal P...
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“帕客”怎么说
10-12-16 The Chinese term pa ke(handkerchief advocator) became popular after one of China's online messaging service providers launched a handkerchief design campaign last year to encourage the use of handkerchiefs to protect the environment. The winner will...
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墨西哥总统呼吁用实际行动减少碳排放
10-12-10 CANCUN, Mexico, Dec. 9 (Xinhua) -- Mexico's President Felipe Calderon called for nations at the 16th Conference of the Parties (COP16) to focus on mechanisms（机制，机构） that will reduce emissions and halt the rise in average world temperatures at...
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天文学家发现首颗富含碳元素的行星
10-12-09 A peculiar（特殊的，奇怪的） gas-giant planet orbiting a sun-like star 1200 light-years away is the first carbon-rich world ever observed. The implications are big for planetary（行星的） chemistry, because without much oxygen, common rocks througho...
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全球气温可能会继续上升
10-11-23 Current state-of-the-art global climate models predict substantial（大量的，实质的） warming in response to increases in greenhouse gases such as carbon dioxide. The models, though, disagree widely in the magnitude of the warming we can expect. The...
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2010年全球二氧化碳排放可能达新高
10-11-22 Global carbon dioxide (CO2) emissions the main contributor to global warming show no sign of abating（减少，缓和） and may reach record levels in 2010, according to a study led by the University of Exeter (UK). The study, which also involved the Uni...
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C4型植物进化的新认识
10-11-16 A new analysis of fossilized（石化的） grass-pollen grains deposited on ancient European lake and sea bottoms 16-35 million years ago reveals that C4 grasses evolved earlier than previously thought. This new evidence casts doubt on the widely-held b...
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研究人员从糖中成功提取石墨烯
10-11-12 Future computers may run a little sweeter, thanks to a refinement（精制，提纯） in the manufacture of graphene（石墨烯） at Rice University. Rice researchers have learned to make pristine（原始的） sheets of graphene, the one-atom-thick form of carb...
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古代全球变暖环境下热带雨林经历过繁荣
10-11-12 The steamiest places on the planet are getting warmer. Conservative（保守的） estimates suggest that tropical areas can expect temperature increases of 3 degrees Celsius by the end of this century. Does global warming spell（意味着，招致） doom for...
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德国邮政发动出行者顺路投递包裹
10-10-23 德国邮政近期宣布了一系列提升服务又环保的举措，具体做法是发动城市中普通的出行者们顺路投递包裹，希望由此可以减轻市中心的交通压力并且减少二氧化碳排放。 Germany's postal service has announced plans to explore improved service and help protect the enviro...
