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听力等级

科学研究   

2022-03-19   Video
Proxima Centauri - Our Solar System’s Closest Stellar Neighbour

Keywords:

In the last few decades, astronomers have discovered thousands of new worlds: exoplanets of all shapes and sizes, orbiting distant stars. But it seems that there was an undiscovered planet hidden...

在过去的几十年里, 天文学家发现了数千个新世界: 各种形状和大小的系外行星, 绕着遥远的恒星运行。 但似乎有一个未被发现的星球 一直隐藏在我们的鼻子底下。 它被发现围绕一颗红矮星运行 称为 Proxima Centauri ...


2022-03-17   Intermediate
Technological Approaches to the Technological Threat

Keywords:

Walter: You know there is a famous or infamous quip, you know, that Scott McNeilly who was the founder and is the CEO of Sun Microsystems made a few years ago, and he said, "Privacy is dead, get over ...

Walter:你知道有个着名的或臭名昭着的俏皮话,你知道,Sun Microsystems 的创始人兼首席执行官 Scott McNeilly 几年前说,“隐私已经死了,克服它吧。你知道,隐私已经死了吗? Sweeney:嗯,假设它受了重...


2022-03-17   Video
Human Chromosomes

Keywords:

The millions of bases, which make up the human genome, are organized into structures called chromosomes. These are arranged into 22 matching pairs, plus one pair of sex chromosomes, con...

这 数百万个碱基, 它们构成了人类基因组, 被组织成结构 称为染色体。 这些被排列成 22 匹配对,外加一对 性染色体,包括 女性的两个 X, 男性为 X 和 Y。 所以人类总共有 每个细胞 4...


2022-03-15   Intermediate
Human Vs. Robotic Space Missions

Keywords:

Steve: Hi Professor Bell. How are you doing today? Bell: I am fine Steve. It's great to be here. Steve: Good to talk to you. So first of all, you are the leader of the Pancam Team on the planet Mars...

Steve:您好,Bell 教授。您今天过得怎么样? Bell:我很好,Steve。很高兴来到这里。 Steve:很高兴和你交谈。首先,您现在是火星上 Pancam 团队的领导者。告诉我们这件事,它从您的生活中消失了多长时间,为此工作所...


2022-03-15   Video
Greenland's Vanishing Glaciers

Keywords:

In the early 1930s there was a territorial dispute between Denmark and Norway over who should have the right to East Greenland. Both Denmark and Norway, they made a lot of aerial mapping. They t...

在 1930 年代初期,有一个领土 纠纷 往返丹麦和挪威 关于谁应该拥有东格陵兰岛的权利。 丹麦和挪威, 他们做了很多航拍测绘。 他们从陆地的飞机上拍摄照片 以及冰川 对我们来说,这真的是一座金矿 因为它们显示了冰川状态的...


2022-03-13   Intermediate
The Future of Biomedical Science

Keywords:

First I asked Hood about that football analogy. Hood: You know, I'll give you a much better analogy, if that's okay. I mean, one that anybody can understand is, suppose you were an engineer and you w...

首先,我问了 Hood 关于那个足球类比。 Hood:你知道的,如果没问题的话,我会给你一个更好的类比。我的意思是,任何人都可以理解的是,假设你是一名工程师,你想知道无线电是如何将无线电转换为声波的——你会怎么做?你做的第一件事是你做一个...


2022-03-13   Video
Human Genome Sequencing

Keywords:

As represented by this huge stack of paper, the human genome contains more than 3 billion nucleotides or DNA letters. The first stage of the public human genome project focused on ident...

如此 一大堆纸, 人类基因组包含更多 超过 30 亿个核苷酸 或 DNA 字母。 第一阶段 公共人类基因组计划 专注于识别标记物 序列或唯一标签, 此处以黄色显示 定期 贯穿这本生命册。 ...


2022-03-11   Video
What is The True Nature of Reality

Keywords:

What is the true nature of the universe? To answer this question, humans come up with stories to describe the world. We test our stories and learn what to keep and what to throw away. But the more...

宇宙的真正本质是什么? 要回答这个问题, 人类想出故事来描述世界。 我们测试我们的故事,了解什么该保留,什么该扔掉。 但是我们学得越多, 我们的故事就越复杂和怪异。 他们中的一些人如此之多, 真的很...


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