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  • Hey there, welcome to Life Noggin!

    嗨,大家好,歡迎來到 Life Noggin!

  • After hearing how Alan Eustace jumped out of a balloon 42 km up and survived,

    在聽到 Alan Eustace 成功從 42 公里高的氣球上跳下來後,

  • I started to wonder about what would happen if he had been even higher.

    我開始好奇,如果從更高的的方跳下來會發生什麼事?

  • How would his body have handled the extreme conditions of the atmosphere?

    他的身體要如何處理大氣層的極端條件?

  • What if you fell from space to Earth?

    如果你從外太空掉到地球會怎樣?

  • Let's go way up to the Karman line, where space technically begins, 100 km above Earth's surface.

    我們一起到卡門線看看,外太空嚴格來說,是從地球表面上 100 公里處開始算起。

  • We're going to jump out of this rocket and find out what happens.

    我們馬上要從火箭上跳下來,看看會發生什麼事。

  • As you can see, we are immediately knocked unconscious.

    如你所見,我們馬上就不省人事了。

  • Brain cells need a constant flow of oxygen, which there's not very much of up here.

    腦細胞需要有固定的氧氣流量,而這裡並沒有太多的氧氣。

  • So when they don't get that, the brain goes into a state of hypoxia and kinda just shuts down.

    因此,當他們沒有氧氣,大腦會進入缺氧狀態,可以說是停止運作。

  • In serious cases, this can lead to seizures, coma, and even brain death.

    嚴重的話,這可能導致癲癇發作、昏迷,甚至是腦死。

  • Also, up here in the thermosphere, we're being exposed to some very intense X-Rays and UV rays from the sun.

    此外,在增溫層中,我們暴露在一些非常強烈的 X 射線和來自太陽的紫外線。

  • If this alone doesn't kill us, we'll likely start vomiting due to radiation poisoning.

    如果這樣還殺不死我們,我們可能會因輻射中毒而開始嘔吐

  • When we get to the mesosphere, which reaches from 85 km above Earth down to 50 km, things don't get much better.

    當我們到達地球上空 50 至 85 公里的中氣層時,事情並沒有好轉。

  • We're met with extremely cold temperatures here, almost negative 100 degrees celsius, giving us some serious frostbite!

    我們這裡會遇到非常冷的溫度,幾乎是 -100°C,會讓我們嚴重凍傷!

  • But on top of that, the friction of falling this fast from this high up is literally burning through our skin!

    但最重要的是,從這高處快速下降的摩擦力,確實會讓我們的皮膚燒起來!

  • This is also the layer of the atmosphere where meteors disintegrate.

    大氣層也是讓流星分解的那層。

  • They leave trails of dust and light behind them, which is what makes them look like shooting stars.

    他們留下灰塵和光線的痕跡,讓他們看起來像流星。

  • If you were to fall through the atmosphere, it would kind of be like you're a human version of a shooting star,

    如果你掉到大氣層中,會讓你像是人體流星,

  • which doesn't sound fun when you actually think about what's happening.

    當你真的想到這事時,這聽起來並不有趣。

  • Next, we'll enter the stratosphere, which is between 50km to about 15 km above the Earth's surface.

    接下來,我們將進入平流層,位於地球表面上約 15 至 50 公里間。

  • There's a point in the stratosphere above which, your blood starts to boil, around 23 km up.

    在平流層上方有一個重點,大約在 23 公里處,你的血液會開始沸騰。

  • At this level of atmospheric pressure, liquids boil at much lower temperatures

    在這大氣壓力程度下,液體可以在極低的溫度下沸騰,

  • because the change in pressure of the liquid allows molecules to move more freely between liquid and gas states.

    因為液體壓力的變化,讓分子在液態和氣態間更自由移動。

  • The lower the pressure, the quicker it boils.

    壓力越低,沸騰速度越快。

  • So with low pressure levels at this height and above, your blood boils.

    因此,在這高度及以上的低壓程度下,你的血液會沸騰。

  • It could also happen with other bodily fluids like stomach acid and urine too!

    它也可能發生在其他體液,如:胃酸和尿液!

  • The troposphere would likely be the least excruciatingly painful of the atmospheric levels.

    對流層可能是大氣層中最不痛苦的一層。

  • In this layer that stretches about 15 km above the Earth's surface, the atmosphere becomes a lot more rich in oxygen and we can finally regain consciousness.

    在距離地球表面約 15 公里的這一層中,大氣變得富含氧氣,我們終於可以恢復意識。

  • But what next?

    但,接下來呢?

  • No one has ever fallen from 100 km up, but people have survived some pretty impressive falls.

    沒有人從 100 公里以上掉下來過,但有人在一些令人印象深刻的墜落中活下來。

  • Like WWII pilot Alan Magee who survived a fall of 6 km after crashing through a glass roof which absorbed some of the impact.

    就像第二次世界大戰的飛行員艾倫.馬吉一樣,在撞到玻璃屋頂後,吸收了一些衝擊力,從 6 公里的墜落中活下來。

  • Or Vesna Vulovic whose plane exploded 10 km up.

    或是維斯娜.烏洛維奇,她的飛機在 10 公里高的地方爆炸。

  • She fell to the ground inside a piece of the plane and survived!

    她在飛機的一塊殘骸中墜落下來並且生還!

  • And it goes without saying, but obviously do not attempt this yourself.

    不用多說,但顯然你不要自己嘗試。

  • I want you to be safe.

    我希望你安全。

  • So, have you ever been skydiving? Would you want to go skydiving?

    那麼,你有沒有跳過傘? 你想去跳傘嗎?

  • Let me know in the comment section below, or tell us, what should we talk about next?

    在下方留言告訴我,或是告訴我們下次該聊什麼?

  • I know a lot of you watch our videos toKeep on Thinking,” and want to build the skill sets for doing so,

    我知道你們很多人都在看我們「Keep on Thinking」的影片,也想要建立這樣做的技能組,

  • and that's why I'm so excited to team up with our sponsor Brilliant dot org.

    這是為什麼我很高興與我們的讚助商 Brilliant dot org 合作。

  • Brilliant offers you engaging problems to get you interested, and they help explain

    Brilliant 提供有引人入勝的問題讓你感興趣,幫助解釋

  • how to break the problem down into relevant concepts, think through each part, and build back up to the conclusion.

    如何將問題分解為相關概念,思考每個部分,並回顧結論。

  • when you are falling from space to earth, it involves a lot of physics

    當你從太空掉落到地球時,它涉及到很多物理學

  • and because physics is so interesting, Brilliant offers both basic and advanced courses in physics!

    因為物理學非常有趣,Brilliant 提供物理學的基礎和高階課程!

  • I tried them, I absorbed the information, they're fantastic.

    我嘗試過了,我吸收不少資訊,它們太棒了。

  • To support Life Noggin and learn more about Brilliant, go to brilliant dot org slash Life Noggin and sign up for free.

    支持 Life Noggin 與了解更多有關 Brilliant 的資訊,請到 brilliant dot org/Life Noggin, 而且免費註冊!

  • There's a link at the top of the description.

    說明上方有個連結。

  • Also, the first 200 people that go to that link will get 20% off the annual Premium subscription.

    此外,前往連結的前 200 人可以獲得年度高級訂閱 20% 的折扣。

  • If you sign up to Brilliant through our link, make sure to Tweet me everything you learned, and we can chat all about it! @LifeNoggin

    如果你使用我們的連結註冊 Brilliant,一定要發推特告訴我你學到的任何東西,我們可以聊聊所有內容!@LifeNoggin

  • As always, my name is Blocko.

    一如往常,我是 Blocko。

  • This has been Life Noggin.

    這裡是 Life Noggin。

  • Don't forget to keep on thinking.

    別忘了繼續思考。

Hey there, welcome to Life Noggin!

嗨,大家好,歡迎來到 Life Noggin!

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B1 中級 中文 美國腔 大氣層 沸騰 地球 氧氣 外太空 物理學

如果你從太空墜落到地球會怎樣? (What If You Fell From Space to Earth?)

  • 247 16
    Jerry Liu 發佈於 2021 年 01 月 14 日
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