Scientists Will Test New Drugs on Artificial Micro-Organs 科学家将在人工微型器官上测验新药物 Testing new drugs on lab animals is not the same as testing them on the species they are intended for. But in early stages of research, test

发表于:2018-12-08 / 阅读(88) / 评论(0) 分类 VOA标准英语2014年(四月)

Scientists To Study Chocolate's Health Benefits 科学家将研究巧克力的健康益处 WASHINGTON Dark chocolate is known to help prevent heart disease, but eating too much of it may be not so good for your body weight. But never fear! Scientists

发表于:2018-12-08 / 阅读(68) / 评论(0) 分类 VOA标准英语2014年(三月)

你喜欢吃炸薯条吗?你在面谱网上给过它们赞吗?看看这个视频,你会惊奇地发现面谱网(以及其他网站)怎样从你随手的赞和分享中预测与你相关的信息。计算机科学家詹尼弗高尔拜克解释

发表于:2018-12-18 / 阅读(81) / 评论(0) 分类 TED演讲集:2014创意的一年

its time again for the A Moment of Science mailbag. A listener writes: Dear A Moment of Science, Ive always been fascinated by volcanoes. So I was wondering: How well can scientists predict when and where a volcano will erupt? Intersting question. Th

发表于:2018-12-31 / 阅读(56) / 评论(0) 分类 英语听力文摘 English Digest

Fear Smells Like Sugar Scientists have suspected for many years that fish might give off a chemical signal to warn other fish about the presence of predators. When a fish in a school is injured, for example, the rest of the school will panic and swim

发表于:2018-12-31 / 阅读(63) / 评论(0) 分类 英语听力文摘 English Digest

Scientists Seek Better Understanding of Threats Faced by Sharks 科学家寻找更好的途径解决鲨鱼面临的威胁 COCONUT ISLAND, HAWAII With many shark species endangered or threatened as a result of pollution and other problems, scientists

发表于:2019-01-14 / 阅读(52) / 评论(0) 分类 VOA标准英语2015年(二月)

NASA Scientists Testing New Aircraft Designs NASA的科学家测试新飞机的设计 The U.S Aeronautics and Space Administration, NASA, is commonly associated with space exploration, but aeronautics is still a big part of the agencys research. Engi

发表于:2019-01-14 / 阅读(67) / 评论(0) 分类 VOA标准英语2014年(四月)

Intel Awards Top Prizes to Young Scientists 英特尔奖最高奖项颁给青年科学家 The United States may not be at the top of the worlds rankings when it comes to test results for high school students, but that does not mean they are without t

发表于:2019-01-14 / 阅读(78) / 评论(0) 分类 VOA标准英语2014年(三月)

Flies Help Understand How Human Brains Work 苍蝇帮助理解人类大脑的工作方式 A human brain contains more than 100 billion neurons while the fly's brain has just 100,000. 人类的大脑包含超过1000亿个神经元而苍蝇的大脑却只

发表于:2019-01-14 / 阅读(62) / 评论(0) 分类 VOA标准英语2014年(三月)

E. T. Phoned. Now What? 外星人来电 Suppose one day scientists pick up a transmission they think is generated by alien s . Now what? Do we build a landing strip and break out the welcome wagon? Well heres the thing about picking up alien broadcas

发表于:2019-02-24 / 阅读(93) / 评论(0) 分类 英语听力文摘 English Digest