This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. If you spent any time in your car this summer you probably sat in some traffic. Maybe youre in a jam right now. If so, a study in an upcoming issue of Ph

发表于:2019-01-08 / 阅读(77) / 评论(0) 分类 Scientific American(九)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Batteries of the future need to deliver more energy, and they need to be smaller. Researchers at MIT think they have developed a technology that can, a

发表于:2019-01-08 / 阅读(78) / 评论(0) 分类 Scientific American(四)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Common batteries are electrochemical cells. And they may get better thanks to living cells: the multicellular organism called brown algae. Lithium ion

发表于:2019-01-08 / 阅读(81) / 评论(0) 分类 Scientific American(九)月

Suspension bridges such as the Golden Gate Bridge and the Brooklyn Bridge are some of the most amazing structures on earth. These aesthetic and technological wonders span rivers, and other obstacles with enough strength to support endless streams of

发表于:2019-01-22 / 阅读(50) / 评论(0) 分类 英语时差8,16

今天我们要学的词是collapse。 Collapse, 坍塌。 The main building of the factory collapsed because of the fire, 大火造成工厂主楼的坍塌。 Nearly a foot and a half of snow fell in Minneapolis last Saturday, causing the roof of Vi

发表于:2019-02-16 / 阅读(25) / 评论(0) 分类 英语每日一词

今天我们要学的词是collapse。 Collapse, 坍塌。 The main building of the factory collapsed because of the fire, 大火造成工厂主楼的坍塌。 Nearly a foot and a half of snow fell in Minneapolis last Saturday, causing the roof of Vi

发表于:2019-02-17 / 阅读(29) / 评论(0) 分类 英语单词荟萃