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听力等级

科学研究   常速英语

2023-11-17   Video
The Accelerator Makes a Substance That Has Not Existed in 13 Billion Years

Keywords:

By using one of the most complicated and powerful machines on the planet, scientists have found a way to glimpse back to the very beginning of time itself. This time machine is a particl...

通过使用最复杂的以及地球上强大的机器,科学家们已经找到了一种窥探的方法回到时间本身的最初。这个时间机器是粒子加速器,它让我们一窥我们的汤新生的宇宙。大事件发生后不久砰,我们的宇宙是一个非常不同的地方。它开始时如此之小、密集和炎热,以至于我们...


2023-11-15   Video
Your Aching Back

Keywords:

>> So your back's a real pain. Turns out many back problems are the result of our ancestors' transition from walking on four legs to walking on two. The earliest primates lived in trees...

>>所以你的背很疼。原来很多人都回来了问题就是结果我们祖先的'从步行过渡从四条腿走路到两条腿走路。最早的灵长类动物住在树上,然后搬家四肢着地就像现代猴子一样。但到了320万年前,原始人是严格的两足动物。露西等化石在埃塞俄比亚的偏远地区,这就...


2023-11-13   Video
What If Earth got Kicked Out of the Solar System

Keywords:

The night sky seems peaceful and orderly. But in reality, stars are careening through the galaxy at speeds of hundreds of thousands of kilometers per hour. Not bound by static formations but ...

夜空显得宁静而有序。但在事实上,恒星在银河系中倾斜数十万公里的速度每小时。不受静态构造的约束,但不断变化的社区。幸运的是太空很大,银河系的恒星也是如此不太可能袭击我们。不幸的是,他们不必打任何东西就能逼我们在地球上度过一段非常糟糕的时光。在...


2023-11-11   Video
Squirrel Monkeys and Humans Share a Common Ancestor

Keywords:

[Background Music] >> I mean it's hard not to look at these guys and feel a deep connection. When you look in their eyes, when you see their hands, when you see their little nails, how ...

[背景音乐]>>我的意思是,这很难不看看这些家伙并感受到一种深刻的联系。当你看着他们的眼睛,当你看到他们的手,当你看到他们的小指甲,它们是如何抓的,我的意思是很难不感觉到某种强大的东西连接你。[音乐]但它的力量也是科学的力量在于在解剖学中,...


2023-11-09   Video
How Large Can a Bacteria Get

Keywords:

In and out, in and out. Staying alive is about doing things. This very second, your cells are combusting glucose molecules with oxygen to make energy available, which keeps you alive for anothe...

进和出,进和出。活着就是做事。就在这一秒,你的细胞正在用氧气燃烧葡萄糖分子提供能量,让你保持活力活在另一个珍贵的时刻。为了让氧气进入你正在呼吸的细胞。呼吸是一个非常困难的问题的答案:你如何获得细胞生存所需的资源,从外面到你的牢房里面?每个生...


2023-11-07   Video
The Evolution of Your Teeth

Keywords:

>> So when you eat, I bet you're not thinking about your inner monitor lizard. But teeth like ours do show up in the fossil record from the time when our ancestors kind of looked like rept...

>>所以当你吃饭的时候,我我打赌你没在想关于你内心的巨蜥。但像我们这样的牙齿确实会露出来在化石记录中从我们的祖先看起来有点像爬行动物。每次你咬苹果这是一种非常复杂的行为。我们的牙齿前部门牙咬了那个苹果他们在几乎是一种完美的方式。牙齿咬合一种...


2023-11-05   Video
Where Did All the Gold in the Universe Come From

Keywords:

That ring on your finger made of platinum or gold, contains a secret that has been at the center of a cosmic mystery. Scientists have been combing the galaxy to figure out where t...

你手指上的戒指由铂或金制成,包含秘密这一直是中心一个宇宙之谜。科学家们一直在梳理银河系弄清楚这些所谓重元素来自。较轻的元素,从氦到一切有两个质子每个原子最多铁,每个原子核中有26个质子,更好地理解。其中大部分形成于恒星内部,但我们的知识在铁...


2023-11-03   Video
The Fossil History of the Human Hand

Keywords:

[ Music ] >> From my earliest days in the anatomy lab I've always enjoyed tracing the connection between humans and other members of the animal kingdom and those ties sometimes present ...

[音乐]>>从我最早的时候在解剖实验室里,我一直喜欢追踪这种联系人与他人之间动物王国的成员这些联系有时会出现他们自己在意想不到的地方。>>当我走进解剖实验室首次,我害怕自己是什么样的人我要去看看,我要去什么去感受,但现实是在最初的几周之后这...


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