欢迎您登陆
+ 影音搜索
 
 
<2025年4月>
周一周二周三周四周五周六周日
31123456
78910111213
14151617181920
21222324252627
2829301234
567891011
听力等级

  

2023-08-23   Intermediate
Daniel Shechtman's Discovery of Quasicrystals - Ⅰ

Keywords:

Professor Lars Thelander: I will give a brief introduction to the prize and hand over to Professor Lidin for a more detailed description. This year's Nobel Prize in chemistry awards one scient...

拉尔斯·泰兰德教授:我将简要介绍该奖项,并请利丁教授进行更详细的描述。今年的诺贝尔化学奖授予了一位科学家Daniel Shechtman。他对准晶的发现揭示了固体材料中原子和分子堆积的新原理。这导致了化学领域的范式转变。它还激发了对非常特殊...


2023-08-21   Intermediate
The Accelerating Expansion of the Universe - Ⅲ

Keywords:

Karen: And today, what do you think is the reason, what is the mechanism for this? Schmidt: Well, I always looked to Einstein because Einstein didn't, he got a lot right, and so Eins...

凯伦:今天,你认为原因是什么,其机制是什么?施密特:好吧,我一直在寻找爱因斯坦,因为爱因斯坦没有,他做得很对,所以爱因斯坦的想法,从字面上看,本质上是一种能量——空间本身也有能量——这是宇宙加速的最简单原因。因为根据爱因斯坦的广义相对论方程...


2023-08-19   Intermediate
The Accelerating Expansion of the Universe - Ⅱ

Keywords:

Botner: So what was the discovery? Well, by comparing the brightness of distant, faraway supernovae with the brightness of nearby supernovae, the scientists discovered that the faraway supern...

波特纳:那么发现了什么?通过比较遥远超新星和附近超新星的亮度,科学家们发现,遥远的超新星大约有25%太暗了——它们太远了。宇宙并没有像预期的那样减速;它正在加速。是什么让宇宙加速?好吧,实际上我们不知道。这是一个热门的研究课题,最热门的候选...


2023-08-17   Intermediate
The Accelerating Expansion of the Universe - Ⅰ

Keywords:

Johansson: This discovery of the accelerating expansion of the universe is a milestone for cosmology. The expansion history of the universe gives us insights into the evolution of the universe...

约翰逊:宇宙加速膨胀的这一发现是宇宙学的一个里程碑。宇宙的膨胀历史让我们了解了宇宙的演化,也可能了解了宇宙最终的命运。宇宙的膨胀早在20世纪20年代就被发现了。膨胀率取决于能量含量。一个只包含物质的宇宙,最终会因为引力而减速。每个人都期望宇...


2023-08-15   Intermediate
The Battle to Eradicate What's Called Guinea Worm, Part Two

Keywords:

Steve: I would imagine you also get a cascade of positive health benefits by having the sanitary conditions installed. Is there any evidence that they've also improved other conditions ther...

Steve:我想,通过安装卫生条件,您也会获得一连串的积极健康益处。是否有任何证据表明他们也改善了那里的其他条件? Gorman:嗯,是的,有大量证据表明,通过建造厕所,你可以产生其他积极影响。但是很多人不会想到的是,拥有厕所的惊人能力,...


2023-08-13   Intermediate
The Battle to Eradicate What's Called Guinea Worm, Part One

Keywords:

Gorman: Of course, you know, prime stomping grounds for the Carters—the Carter Center is there. And it was very interesting because I hadn't really thought very much about the Carters, well, in a ...

Gorman:当然,你知道,卡特中心就在那里。这非常有趣,因为我已经很久没有真正考虑过卡特夫妇了。我很惊讶,也很惊喜,只是听到他们谈论全球健康问题的方式,这当然是吉米·卡特 (Jimmy Carter) 的重点,罗莎琳·卡特 (Rosaly...


2023-08-11   Intermediate
Out of Our Depth - Sea Level on the Rise

Keywords:

Fischetti: We hear about several different sorts of key numbers, and that's part per million of carbon dioxide or the global forcing, which is in watts per square meter, and give us the basic...

Fischetti:我们听到了几种不同类型的关键数字,这是二氧化碳的百万分之一或全球强迫,单位是瓦特每平方米,给我们一些基本数字,哪些最重要?Rohling:好吧,所以我认为第一个要考虑的数字是工业化前的二氧化碳值,大约是大气中的百万分之2...


2023-08-09   Intermediate
'Planet of Viruses', Carl Zimmer, Part Two

Keywords:

Steve: Right--the rat will get infected because it'll touch the cat droppings. Zimmer: Right. These eggs are just floating around in the dirt; you know, rats are sorta rummaging aro...

史蒂夫:对,老鼠会被感染的,因为它会接触到猫的粪便。齐默:对。这些蛋只是漂浮在泥土里;你知道,老鼠在四处翻找食物,它们捡起鸡蛋,最后进了嘴里,被感染了。所以,是的,弓形虫,你知道,在有很多户外猫的地方,弓形虫应该在任何地方都很常见。史蒂夫:...


使用须知 常见问题  

Copyright© 2015-2025 kuotuo Inc. All rights reserved  

粤ICP备12056166号-3 粤公网安备 44010602002199号

您的IP地址:3.146.176.40