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听力等级

科学研究   

2023-05-27   Video
How to Build a Dyson Sphere

Keywords:

Human history is told by the energy we use. At first we had to use our muscles, then we learned to control fire. We industrialized the world using coal and oil and entered the Atomic Age when we le...

人类的历史是由我们使用的能源来讲述的。起初我们必须使用肌肉,然后我们学会了控制火力。我们利用煤炭和石油实现了世界工业化,并在学会如何分裂原子核后进入了原子时代。在每一步中,我们都将能源收获增加到前所未有的规模,并作为一个物种不断进步。目前,...


2023-05-23   Intermediate
Self-Reflecting Machines - Self-Aware Robots

Keywords:

Choi: The thing that really drew my attention was work from roboticist Hod Lipson over at Cornell University. The title of his talk was "Self-Reflecting Machines" and talking about in...

Choi:真正引起我注意的是康奈尔大学机器人专家 Hod Lipson 的工作。他的演讲题目是“自我反射机器”,谈到了在机器人中安装自我意识,你怎么能不想了解更多呢? Steve:所以我们不是在镜子前谈论的自反光机器;我们谈论的是一台在某...


2023-05-23   Video
COVID Dominated Their Science Lives

Keywords:

The Coronavirus pandemic has changed the world by showing people what a pandemic can do in the 21st century, when we have vaccines antibiotics science--we still can have a very disruptive ...

冠状病毒疫情改变了世界通过向人们展示疫情在21世纪,当我们有疫苗和抗生素时科学——我们仍然可以有一个非常具有破坏性的传染病紧急情况人们认为这是不可能的,因为2009年H1N1流感疫情没有那么严重,但我当你回顾严重急性呼吸系统综合征冠状病毒2...


2023-05-21   Video
Development of the Cerebral Cortex

Keywords:

And to tell you a bit more about how we think that works, I'll tell you a little bit more about how the human brain develops. But if we can show this video, this summarizes how the st...

并告诉 你多了解一下怎么做 我们认为这有效,我会 多告诉你一点 关于人类 大脑发育。 但是,如果我们能证明 这个视频,这个 总结了 大脑中的干细胞 产生大脑皮层。 因此,这表明 通过胎儿的示意...


2023-05-19   Video
Nature Can Help Us Prepare for the Next Pandemic

Keywords:

A dragonfly's wings are just one-tenth the mass of a single raindrop. And they're constantly damaged by wind and collisions. But they stay intact. How. Because if there's a damage in some part o...

蜻蜓的翅膀只有单个雨滴质量的十分之一。 而且它们经常受到风和碰撞的损坏。 但他们仍然完好无损。如何。因为如果网络的某个部分发生损坏,那么从 a 点到 b 点有许多不同的路线、许多不同的方式。 这称为冗余网络。 珊瑚骨...


2023-05-17   Intermediate
The Spewing’s of Titan; Light Pollution

Keywords:

Steve: Icy volcanoes? What are they spewing? Castelvecchi: They are spewing liquid water out of a world of ice. So imagine you have an icy surface, like you have in Antarctica or Greenland,...

Steve:冰火山?他们在喷什么? Castelvecchi:他们正在从冰的世界里喷出液态水。所以想象一下,你有一个冰冷的表面,就像你在南极洲或格陵兰岛一样,有一座火山喷出的不是熔岩,而是喷出液态水。 Steve:地表下发生了什么,你知...


2023-05-15   Intermediate
How You Gonna Keep Flu Down on the Farm

Keywords:

Steve: Let's start with a brief primer on the whole issue of flu and how human beings, pigs and birds are all related in the whole flu business. Branswell: Well, [as] people will kno...

史蒂夫:让我们先简要介绍一下整个流感问题,以及人类、猪和鸟类在整个流感业务中的关系。布兰斯维尔:嗯,人们会知道,有人类流感病毒在我们中间传播,一般来说是在冬季,而且数量很少,但它们在任何时候都是有限的。现在我们有H3N2病毒,我们有2009...


2023-05-15   Video
Where Are All The Alien

Keywords:

Are we the only living things in the entire universe? The observable universe is about 90 billion light-years in diameter. There are at least 100 billion galaxies each with 100 to 1000 billion stars. ...

我们是整个宇宙中唯一的生物吗?可观测宇宙的直径约为 900 亿光年。至少有 1000 亿个星系,每个星系有 100 到 10000 亿颗恒星。最近,我们了解到行星也很常见——宇宙中可能有数万亿个宜居行星,这意味着生命应该有很多发展和存在的机...


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