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听力等级

科学研究   

2022-02-25   Intermediate
Lying in Weight

Keywords:

Hi Trisha. How are you? Gura: Hi Steve. Steve: Good to see you. Tell me—first of all, the book is called Lying in Weight, w-e-i-g-h-t. Gura: That's correct. Steve: What does the title mean? Gura:...

嗨,Trisha。你好吗? Gura:嗨,史蒂夫。 Steve:很高兴见到你。首先,这本书叫做《沉重的躺着》(Lying in Weight, w-e-i-g-h-t)。 Gura:是的。 Steve:标题是什么意思? Gura:...


2022-02-25   Video
Why Beautiful Things Make Us Happy

Keywords:

A lot of things can be beautiful. Landscapes, faces, fine art, or epic architecture; stars in the sky. Or simply the reflection of the sun on an empty bottle. Beauty is nothing tangible, it only ex...

很多东西都可以很美。 风景、面孔、美术或史诗般的建筑;天空中的星星。 或者只是太阳在空瓶子上的反射。 美不是有形的,它只作为一种愉快的感觉存在于我们的脑海中。 如果我们必须定义它,我们会认为某物的颜色、形状、形式或比...


2022-02-23   Intermediate
The Encyclopedia of Life

Keywords:

Wilson: Let me say about this morning, this—in my long career—this is the one morning when I think I took part in making history. That sounds like poor belief, but I am going to justify that in a mome...

Wilson:让我说一下今天早上,在我漫长的职业生涯中,这是我认为我参与创造历史的那个早晨。这听起来像是糟糕的信念,但我稍后会证明这一点。我们在全国新闻俱乐部(National Press Club)开会,发表了一份新闻稿,宣布推出《生命百...


2022-02-23   Video
DNA Replication (Schematic)

Keywords:

The structure of DNA that Watson and Crick discovered suggests how genetic information is passed on. Before a cell divides the double helix unwinds and the two strands of the DNA molecule in the nucle...

Watson 和 Crick 发现的 DNA 结构表明了遗传信息是如何传递的。 在细胞分裂之前,双螺旋解开,细胞核中 DNA 分子的两条链分离。 然后将每条链用作构建新 DNA 分子的模板。 DNA 的复制在理论上很简单,但在现实中要复杂得...


2022-02-21   Intermediate
Beer Science

Keywords:

Professor Bamforth—great to talk to you. Bamforth: It's nice to talk to you. Steve: What is beer? Bamforth: Beer is a fermented beverage based on malted cereals and spiced with hops and fermentatio...

Bamforth 教授——很高兴与您交谈。 Bamforth:很高兴能和你交谈。 Steve:什么是啤酒? Bamforth:啤酒是一种以麦芽为基础的发酵饮料,用啤酒花调味,并经过酵母发酵,涉及酵母(酿造酵母),所以它实际上是一种酒精...


2022-02-21   Video
10 Years of DNA Origami

Keywords:

We know that DNA makes people and plants and puppies. So why not robots? Could it be possible to make tiny robots out of DNA? In 2006 Paul Rothemund found a way to make all sorts of tiny shapes ...

我们知道 DNA 造就人 和植物 和小狗。 那么为什么不是机器人呢? 有没有可能用 DNA 制造出微型机器人? 2006 年,Paul Rothemund 找到了一种方法 用 DNA 制作各种微小的形状, 甚至是微型笑脸。 ...


2022-02-19   Intermediate
Peer Review of Peer Review

Keywords:

Hi John—how are you? Rennie: Hi Steve—just fine. Steve: You were at this conference and you were on a panel discussing peer review. Rennie: That's right! Steve: Let's talk about what peer review i...

嗨,John,您好吗? Rennie:嗨,Steve——很好。 Steve:您参加了这次会议,并且参加了一个讨论同行评审的小组。 Rennie: 没错! Steve:我们先谈谈什么是同行评议。 Rennie:这实际上是我们在这个小...


2022-02-17   Video
DNA Replication (Advanced Detail)

Keywords:

During DNA replication, both strands of the double helix act as templates for the formation of new DNA molecules. Copying occurs at a localized region called the replication fork, which is a Y shaped ...

在 DNA 复制过程中,双螺旋的两条链充当形成新 DNA 分子的模板。 复制发生在称为复制叉的局部区域,该区域是一个 Y 形结构,新的 DNA 链由多酶复合物合成。 在这里,要复制的 DNA 从左侧进入复合物。 一条新发条离开框架顶部,另一...


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