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SSS 2011-07-04

This is Scientific American's 60-Second Science. I'm Steve Mirsky at the Lindau Nobel Laureate Meeting in Lindau Germany.This will just take a little more time than our usual minute. Why do I talk so much on money, when I'm a professor public health?

发表于:2019-01-08 / 阅读(88) / 评论(0) 分类 Scientific American(七)月

AP 2011-05-10

1. The Pentagon has released five silent videos it says it seized from Osama Bin Laden's compound. Most show him giving statements into a camera, but another shows him sitting on the floor watching TV, flipping to different channels that were showing

发表于:2019-01-11 / 阅读(135) / 评论(0) 分类 美联社新闻一分钟2011(五月)

AP 2011-10-22

1. Police in Maryland have found remains that they believe are those of a missing 11-year-old boy. William McQuain's mother was found beaten and stabbed to death last week. Her estranged husband was arrested in North Carolina the day after her body w

发表于:2019-01-11 / 阅读(125) / 评论(0) 分类 美联社新闻一分钟2011(十月)

VOA慢速英语 2007 0305a

This is the VOA Special English Development Report. Nanotechnology uses matter at the level of molecules and atoms. Researchers are finding different uses for particles with a length of one nanometer, or one-billionth of a meter. These include things

发表于:2019-01-11 / 阅读(60) / 评论(0) 分类 VOA慢速英语2007年（三）月

中英双语新闻——Facing the invasion of the superbugs

A killer bug spreading across the globe like wildfire sounds like something out of a bad sci- fi film. But while this is still the stuff of fantasy, microbiologists are concerned about the news of an enzyme with the potential to convert all bacteria

发表于:2019-01-19 / 阅读(64) / 评论(0) 分类 中英双语新闻

经济学人87:是否有种疫苗能对付毒品滥用？

Science and Technology Combating addiction 科技 打击吸毒 Can a vaccine stop drug abuse? 是否有种疫苗能对付毒品滥用？ It may be possible to vaccinate people against addictive drugs 向吸毒者接种疫苗防止毒瘾将成为可能

发表于:2019-01-26 / 阅读(83) / 评论(0) 分类 经济学人科技系列

万物简史 第143期:基本物质(15)

Because chemists for so long worked in isolation, conventions were slow to emerge. Until well into the second half of the century, the formula H2O2 might mean water to one chemist but hydrogen peroxide to another. C2H4 could signify ethylene or marsh

发表于:2019-01-29 / 阅读(73) / 评论(0) 分类 万物简史

Electric motor made in single molecule

BEIJING, Sept. 6 (Xinhuanet) -- Scientists from Tufts University of the U.S. have created the world's smallest electrical motor in a single molecule. The finding was published in the journal Nature Nanotechnology on Monday. In the research, scientist

发表于:2019-01-30 / 阅读(103) / 评论(0) 分类 英语新闻

外太空最黑暗的真空中是否有生命

We generally imagine aliens on a vaguelyEarth-like planet circling a distant star. We do not normally think of themliving out in space itself. 我们通常想象外星人住在绕着遥远的恒星运行,隐约像地球的行星上. 我们一般不会认

发表于:2019-02-05 / 阅读(82) / 评论(0) 分类 英语新闻

美德三人荣获2014诺贝尔化学奖

Hell, of the Max Planck Institute for Biophysical Chemistry, G?ttingen, and German Cancer Research Center, Heidelberg, both in Germany, developed a way to use two laser beams to make individual molecules glow on and off. 斯特凡W赫尔，作为哥廷

发表于:2019-02-07 / 阅读(71) / 评论(0) 分类 英语新闻

Afghan Taliban commander killed

Afghan Taliban commander killed

发表于:2019-02-08 / 阅读(96) / 评论(0) 分类 英语新闻

单词超市第133期 in tatters

Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文，请发贴到 听力原文收集区 ，您将会获得10到30积分的奖励! Thank you！

发表于:2019-02-16 / 阅读(53) / 评论(0) 分类 英语单词荟萃

万物简史 第409期:生命的起源(3)

There are actually twenty-two naturally occurring amino acids known on Earth, 实际上，地救上有22种天然存在的氨基酸， and more may await discovery, but only twenty of them are necessary to produce us and most other living things. 更多

发表于:2019-02-17 / 阅读(59) / 评论(0) 分类 万物简史

TED演讲：细菌是怎样交流的(5)

But then if you think about it, the squid has this terrible problem 但是如果你再深入地想一下，这乌贼会有一个可怕的问题， because it's got this dying, thick culture of bacteria and it can't sustain that. 因为在它的体内，

发表于:2019-03-04 / 阅读(112) / 评论(0) 分类 TED演讲教育篇

TED演讲：细菌是怎样交流的(12)

And the final thing is, again just to reiterate that there's this practical part, 最后，只是再一次重申，这个研究的实际应用方面， and so we've made these anti-quorum sensing molecules that are being developed as new kinds of the

发表于:2019-03-04 / 阅读(134) / 评论(0) 分类 TED演讲教育篇

TED演讲：细菌是怎样交流的(11)

And what I would hope that I could further argue to you is that this is the invention of multicellularity. 我希望能进一步地说服你们的是，这就是多细胞生物的起源。 Bacteria have been on the Earth for billions of years; humans

发表于:2019-03-04 / 阅读(98) / 评论(0) 分类 TED演讲教育篇

TED演讲：细菌是怎样交流的(10)

To finish I'll just show you the strategy. 最后，我只跟你们说一下战略。 And this one I'm just using the interspecies molecule, but the logic is exactly the same. 在这里，我们只是使用跨菌种分子，但是思维逻辑是一模一

发表于:2019-03-04 / 阅读(114) / 评论(0) 分类 TED演讲教育篇

TED演讲：细菌是怎样交流的(8)

So we went back to molecular biology and started studying different bacteria, 所以我们回到分子生物学的方法，开始研究不同的细菌， and what we've found now is that in fact, bacteria are multilingual. 我们现在已经发现，事

发表于:2019-03-04 / 阅读(95) / 评论(0) 分类 TED演讲教育篇

TED演讲：细菌是怎样交流的(7)

We also then went to look at what are these molecules -- these were the red triangles on my slides before. 我们同时也研究了这些小分子，这些就是我刚才幻灯上的小红三角形。 And so this is the Vibrio fischeri molecule. This

发表于:2019-03-04 / 阅读(140) / 评论(0) 分类 TED演讲教育篇

TED演讲：细菌是怎样交流的(3)

What was actually interesting to us was not that the bacteria made light, but when the bacteria made light. 事实上，我们感兴趣的部分并不是细菌会不会发光，而是细菌何时发光。 What we noticed is when the bacteria were alo

发表于:2019-03-04 / 阅读(128) / 评论(0) 分类 TED演讲教育篇
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