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  • Hey there. Welcome to Life Noggin!

    嘿你好,歡迎收看《Life Noggin》!

  • The Earth is huge--its surface area is over 500 million square kilometers

    地球超大 —— 它的表面積超過五億平方公里

  • and it currently holds over 7 billion people.

    目前容納超過七十億人口

  • But it's nothing compared to the solar system, which is billions of kilometers across.

    但與橫跨幾十億公里的太陽系相比,地球根本小兒科

  • And that is still nothing compared to the Milky Way galaxy.

    但就連這麼廣大的太陽系,也還是比不上銀河系

  • And if we zoom out even more, we can really start to appreciate how huge the universe actually is.

    若再拉遠些,我們就真的可以發現宇宙到底有多大

  • But we might be able to take this one step further -- because we might be living in something called a multiverse,

    或許還能更進一步——因為我們可能是住在所謂的平行宇宙

  • where there is not just one universe, but potentially an infinite amount of them.

    在這裡不只有一個宇宙,而是有無盡無數個宇宙

  • And if this is true, some scientists think that we have the Big Bang to thank.

    若這是真的,有些科學家認為,是大爆炸造成了這一切

  • See, for a fraction of a second after the Big Bang, the universe expanded incredibly quickly and then stopped.

    在大爆炸後不到一秒內,宇宙快速膨脹,然後瞬間停止

  • And over the next 14 billion years, it cooled down and formed stars, galaxies, and eventually life!

    之後的一百四十億年,宇宙冷卻下來,形成恆星、銀河,最終形成生命

  • But there's reason to believe that there are some pockets of space that haven't stopped inflating,

    但有些原因讓人們相信,宇宙中某些小空間其實還沒停止膨脹

  • and some others that have at different times. This is called the "eternal inflation" theory,

    而有些小空間在不同時間點已經停止。這就是「永恆膨脹」理論

  • and each of these bubbles of space forms its own, isolated universe.

    每個如泡泡般的空間,形成各自獨立的宇宙

  • Maybe in another universe, I'm really buff and strong. Okay, I'm not gonna get carried away.

    或許在另一個宇宙裡,我有肌肉又強壯。好啦,我不要再沉迷在幻想中了

  • And interestingly, the laws of physics and the fundamental constants might not be the same here.

    有趣的是,每個宇宙的物理定律和基礎常數可能會不太一樣

  • And that got me thinking: what would a parallel universe even be like?

    這不禁讓我猜想:平行宇宙到底是什麼樣子?

  • Well, in a lot of these universes, you and I might not even exist -- sorry sci-fi fans, I know that's hard to hear.

    在眾多宇宙中,你跟我可能根本不存在——拍謝啦~科幻迷們,我知道這很難接受

  • See, if the laws of physics were different enough -- like if the forces between particles were too weak,

    如果物理定律差異夠大——像是如果粒子間的作用力太弱

  • atoms might never form.

    原子就不可能會形成

  • And that means no molecules, no stars and planets, and no life.

    也就是說不會有分子、恆星和行星,以及生命

  • Sounds pretty boring over there -- worst vacation spot ever!

    聽起來那邊好無聊喔——史上最糟糕的旅遊景點!

  • That said, there's also the possibility that the laws of physics in some of those universes are so close to ours that intelligent life is possible.

    但也有可能,有些宇宙的物理定律和我們的很接近,這樣智慧生物就有可能存在

  • And if there is an infinite amount of them, it's pretty likely that there's a bubble universe that's very similar to our own.

    如果有無數多個宇宙,極有可能其中一個跟我們的宇宙很像

  • And interestingly, it is theoretically possible that some of these neighboring universes can collide with each other.

    有趣的是,理論上相鄰的宇宙是有可能會互相碰撞的

  • In fact, it's possible that our universe may have collided with others in the past.

    事實上,我們的宇宙可能曾經和其他宇宙碰撞過

  • The main hypothesis is that a collision like this might have left a mark on the cosmic microwave background that we can detect.

    主要的假說指出,這樣的碰撞可能會在宇宙背景輻射中留下碰撞的痕跡,而我們能藉以偵測得知

  • But sadly, the researchers haven't found anything so far,

    但很可惜,目前為止,研究員什麼東西都還沒找到

  • and there isn't any proof that parallel universes even exist.

    也沒有證據能證明平行宇宙的存在

  • But if they do, and if they contain life, it would be interesting to see what that life was like.

    但若它們真的存在,還能孕育生命,目睹那樣的生命體一定會非常有趣

  • What do you think ?

    你覺得會是怎樣呢?

  • Do you believe that parallel universes are out there?

    你相信有平行宇宙嗎?

  • Let me know in the comments!

    在留言處告訴我吧!

  • And if you want to know why we haven't found life in our galaxy yet, click here to find out.

    如果你想了解為什麼我們在銀河系還沒發現生命的話,點擊這裡一探究竟

  • There's a link in the description if you're on mobile.

    如果你是使用手機的話,在說明處有連結

  • As always, I'm Blocko.

    一如往常,我是布雷克

  • This has been Life Noggin.

    這裡是《Life Noggin》

  • Don't forget to keep on thinking.

    別忘了時時動動你的腦袋瓜

Hey there. Welcome to Life Noggin!

嘿你好,歡迎收看《Life Noggin》!

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B1 中級 中文 美國腔 宇宙 定律 形成 膨脹 物理 太陽系

平行宇宙會是什麼樣子? (What Would A Parallel Universe Even Be Like?)

  • 24207 1977
    g2 發佈於 2017 年 01 月 04 日
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