标签：水和酒精分子 相关文章
This list is just for illustration; it is incomplete. 这个列表仅仅是一个例子，它是不完整的。 The list on the right is also incomplete. 右边的列表也一样不完整。 It's a list of types of pathology that are age-related, 它们
TED演讲科学篇
Paul Rothemund正在编写一种特殊的「密码」以使DNA能自己排列成星形、笑脸及其他图案。您会为之感到震惊，但您所看到的只是分子自我排列组合的小型表演，它实际上揭示了未来制造出各种东西
TED公开课:头脑游戏
Why does your mouth feel like it's on fire when you eat a spicy pepper? 为什么吃辣椒时嘴里像是着了火一样？ And how do you soothe the burn? 怎样才能缓解这种灼烧感？ Why does wasabi make your eyes water? 为什么芥末酱能
TED演讲教育篇
The Secret of Life in the Pub 克里克和沃森[qh]The names of James Watson and Francis Crick are bound together forever because the scientific discovery they made was truly a joint enterprise，Watson and Crick were the first to describe the struc
走进剑桥大学
And every single part of this mechanism is actually plausible in biology. 实际上，这个机制的每一个步骤在生物领域中都是可行的。 In other words, I've taken off-the-shelf components, and I've made a spectroscope. 换句话讲，我
TED演讲教育篇
As it ages, white paper turns distinctive of yellow, but why? To find out, scientists artificially aged modern paper to rebuild the changes on the molecular level, the researchers in the Journal physical review of letters, for 48 days, 3 unpleached p
Scientific American(四)月
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Understanding all the genes and molecules involved in human disease is quite a challenge. Thats why scientists study model organisms, like flies and worm
Scientific American(三)月
As it ages white paper turns a distinctive yellow. But why? To find out, scientists artificially aged modern paper to reveal the changes on the molecular level. The research is in the Journal Physical Review Letters. For 48 days, three unbleached pap
Scientific American(四)月
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
英语新闻
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
英语新闻
Afghan Taliban commander killed
英语新闻
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英语单词荟萃
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
万物简史
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，
TED演讲教育篇
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
TED演讲教育篇
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
TED演讲教育篇
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
TED演讲教育篇
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
TED演讲教育篇
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
TED演讲教育篇
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
TED演讲教育篇