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听力等级

科学研究   

2024-09-04   Video
How to Photograph a Total Solar Eclipse with Any Camera

Keywords:

Hi, I'm Lucy. I am a night sky photographer and an eclipse chaser. On April 8th there's going to be a total solar eclipse crossing over North America. The path of totality is going to start s...

大家好,我是 Lucy。我是一名夜空摄影师,并且 日食追逐者。4 月 8 日将举行 穿越北美的日全食。 整体性的道路将从某个地方开始 在墨西哥上空,在新斯科舍省结束。所以 我今天在这里讨论如何捕获 日食的精彩照片和视...


2024-08-31   Intermediate
The Real Killer Of The Dinosaurs, Part Two

Keywords:

But now the grand finale was about to begin. About 50,000 years before impact, the true apocalypse came. Like a cosmic horror breaking out of its prison, the Deccan Traps roared and scre...

但现在大结局即将到来 开始。撞击前约 50,000 年, 真正的启示录来了。像宇宙一样 恐怖地冲出监狱, 德干陷阱咆哮着,尖叫着, 开始喷出数十万亿的 数吨的岩浆和更致命的气体 在持续数年的猛攻中 千年。滚动...


2024-08-31   Video
What Would Happen If Extinct Animals Could Be Brought Back to Life

Keywords:

What do saber-toothed tigers, woolly mammoths and the dodo all have in common? They're all extinct. And some theorize humans played a large part in this. What if we could apologize for our wrong...

剑齿虎、长毛猛犸象和渡渡鸟有什么共同点? 他们都灭绝了。一些理论认为人类在其中发挥了很大作用。 如果我们能为我们作为一个物种的错误行为道歉,并把这些生物重新养回来呢?这在科学上可能吗?人类会一直处于食物链的顶端吗? 这就是...


2024-08-29   Intermediate
The Real Killer Of The Dinosaurs, Part One

Keywords:

A ruthless murder was committed! Someone killed the dinosaurs and we have the murderer! Witnesses say that an Everest-sized asteroid hit Earth, devastated the planet and caused a mass ex...

一场无情的谋杀!有人被杀 恐龙和凶手!证人 说珠穆朗玛峰大小的小行星撞击 地球,摧毁了地球并导致 一场大规模灭绝。一个简单而迷人的 和令人信服的解释。或。。。是吗? 在过去的几年里,新的证据 重振了指向 对第...


2024-08-27   Intermediate
An Indirect Way to Tame Cancer, Part Three

Keywords:

Rakesh Jain: We said – we asked the questions what molecules in our body control the production of collagen, and the growth factor that is the master regulator of collagen is known as TGF beta, transf...

Rakesh Jain:我们说——我们问了我们体内的哪些分子控制胶原蛋白的产生,而作为胶原蛋白主要调节因子的生长因子被称为 TGF β,即转化生长因子 β。因此,我们开始在文献中寻找 FDA 批准的药物可以阻断 TGF β 的活性,事实上,...


2024-08-27   Video
What Would Happen If We Terraformed the Sahara Desert

Keywords:

In an effort to fight climate change, the Sahara Desert could be going green... literally. Plans are being made to terraform the entire Sahara desert; changing it from a dry, barren land...

为了应对气候变化, 撒哈拉沙漠可以 走向绿色......按照字面。 正在制定 terraform 计划 整个撒哈拉沙漠; 把它从干燥、贫瘠的 景观到郁郁葱葱的绿色空间。 如果成功,则 转换可以删除 每年...


2024-08-25   Intermediate
An Indirect Way to Tame Cancer, Part Two

Keywords:

Rakesh Jain: But in addition, even if the drugs get into the hypoxic region, somehow you could do that, they stop functioning there, because a lot of the drugs, for them to function they require oxyge...

Rakesh Jain:但除此之外,即使药物进入了缺氧区域,不知何故,它们也会在那里停止运作,因为很多药物需要氧气才能发挥作用。 辐射也是如此;放射疗法是最常见的癌症治疗方法,需要氧气。因为辐射的作用是将氧转化为所谓的氧自由基,这就是导致...


2024-08-25   Video
What Would Happen If Earth Was Inside of a Nebula

Keywords:

If you could teleport the Earth to any place in the Universe, what would you want to look at in the night sky? The bright explosion of a supernova? A black hole passing over your house?...

如果你能传送地球 到宇宙中的任何一个地方, 你想看什么 在夜空中? 超新星的明亮爆炸? 一个黑洞从你的房子上经过? 星云怎么样? 这朵华丽的气体云近距离看什么? 如果地球在里面,地球会如何变化? ...


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