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Scientists: Spiders Use Electric Fields to Move through Air Scientists have long wondered how spiders can use the webbing they make to fly. The 19th century English naturalist Charles Darwin commented on their behavior when very small spiders landed
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99 吸收金属原料的植物有助于抗癌药品的研制 AGRICULTURE REPORT September 25, 2001: Plants that Absorb MetalsBy George Grow （Start at 1'00
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Graphene: The Material of the 21st Century 21世纪的新材料石墨烯 Graphene is a type of graphite mineral. Experts often call it 'The Material of the 21st Century' because of its special properties. Some U.S. companies are already using graphen
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Study Shows Vitamin E Increases Prostate Cancer Risk A number of medical studies over the years suggested that vitamin E, taken as a dietary supplement, might help prevent prostate cancer. But new research finds not only that the earlier studies were
VOA标准英语2011年(十月)
It started with a simple experiment: take some graphite - the black stuff in the middle of a pencil - and put a piece of tape over it. When the scientists at the University of Manchester did that, they found that they could develop a material that co
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Scientists Suggest Adding Selenium to Diets in Malawi The study, which was published in the journal Scientific Reports, found that most Malawi soils do not have an adequate amount of selenium required for human nutrition. In the report, researchers a
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