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  • Atoms are ridiculous and unbelievably small.

    原子真的是小的荒謬又難以置信

  • A single human hair is about as thick as

    一個人的頭髮大約是

  • 500,000 carbon atoms stacked over each other.

    50萬個碳原子疊起來那麼厚

  • Look at your fist, it contains trillions and trillions of atoms.

    看看你的拳頭,它包含著好幾兆個原子

  • If one atom in it were about as big as a marble, how big would your fist be?

    如果一個原子的大小跟一顆彈珠一樣 那你的拳頭將會有多大呢?

  • Wellabout the size of Earth. Hmstill hard to imagine?

    呃......關於地球的大小 嗯......還是很難想像嗎?

  • Let’s try something different

    讓我們嘗試一些不同的東西

  • Look at your little finger.

    看著你的小拇指

  • Imagine that its tip is as big as the room youre sitting in right now.

    想像一下,它就跟你正坐在裡面的那個房間一樣大

  • Now fill the room with grains of rice.

    而房間裡充滿著米粒

  • One rice corn represents one cell of your fingertip.

    其中一粒米代表你小拇指的一個細胞

  • Now let’s zoom in on the rice corn.

    現在讓我們放大那粒米

  • And now, one cell is as big as the room youre in right now.

    而現在,一個細胞就跟你正坐在裡面的那個房間一樣大

  • Let’s fill it with rice again. This is about the size of a protein.

    我們再次的填滿飯粒,這次差不多是一個蛋白質的大小

  • And now, let us fill all the empty spaces between the rice corns

    現在,讓我們以沙子塞滿

  • with fine grains of sand.

    米粒之間的空隙

  • This is roughly how small atoms are.

    原子大概就是這麼渺小

  • What is an atom made of?

    原子是由什麼製成的?

  • Let us just pretend that atoms look like this for a minute

    讓我們假裝一分鐘的時間原子​​看起來像這樣

  • to make it easier to understand.

    以便更容易理解

  • An atom consists of three elementary particles:

    原子包括三種基本粒子:

  • neutrons, protons and electrons.

    中子,質子和電子

  • Protons and neutrons bind together and form the atom core,

    質子和中子結合在一起,構成原子的核心

  • held together by the strong interaction,

    受到強烈的相互作用而在一起

  • one of the four fundamental forces in the universe.

    在宇宙裡四種基本力的其中一種

  • They are made from quarks and held together by gluons.

    它們是由夸克製成並由膠子結合在一起

  • Nobody knows exactly how small quarks are.

    沒有人確切的知道夸克有多小

  • We think they might literally be points, like in geometry.

    他們可能是照字面上的意思翻吧,就像幾何

  • Try to imagine them as being zero-dimensional.

    試著把他們當作是,零維

  • We suspect that quarks and electrons are

    我們猜想,夸克和電子

  • the most fundamental components of matter in the universe.

    是物質在宇宙中最根本的構件

  • Electrons orbit the atom core. They travel at a speed of about 2,200 km/s,

    電子圍繞著原子核轉 他們在裡面行徑的速度約每秒2200公里

  • fast enough to get around the Earth in just over 18 seconds.

    速度快到可以18秒繞完地球一圈

  • Like quarks, we think electrons are fundamental particles.

    就像夸克,我們認為電子是一種基本粒子

  • 99.999999999999%

    99.999999999999%

  • of an atom’s volume is just empty spaceExcept that it isn’t.

    的原子體積是空的...其餘的都不是原子

  • What we perceive as emptiness is actually a space filled by quantum fluctuations,

    我們覺得的空虛,其實是用來填充量子波動的空間

  • fields that have potential energy and build and dissolve spontaneously.

    潛在能量的領域、建造和自然的瓦解

  • These fluctuations have a fundamental impact on how charged particles interact.

    這些波動的根本對帶電粒子如何相互作用有所影響

  • But that’s a topic for another video.

    但是,這是其他影片的話題

  • How much space do the core and electrons actually fill?

    有多少空間是原子核和電子真正佔去的?

  • If you were to subtract all the spaces between the atom cores

    如果你去除所有原子核之間的空隙

  • from the Empire State Building, it would be about as big as a rice corn.

    帝國大廈會變成米粒般的大小

  • All the atoms of humanity would fit in a teaspoon.

    人體所有的原子大約是一茶匙

  • There are extreme objects where states like this actually exist.

    有些極端物體類似的狀態是存在的

  • In a neutron star, atom cores are compacted so densely

    在中子星,原子核被壓得很緊以至於很密集

  • that the mass of three Suns fits into an object only a few kilometers wide.

    照這樣子的話,三個太陽連起來的長度只有幾公里

  • By the way, what do atoms look like?

    對了,原子長什麼樣子?

  • Well, kind of like this.

    好吧,有點像這個

  • Electrons are like a wave function and a particle at the same time.

    電子同時就像一個波函數還有一個粒子

  • We can calculate where an electron might be at any given moment in time.

    我們可以計算出,在任何時間內電子可能出現的地方

  • These clouds of probability, called orbitals,

    這些概率雲,稱謂的軌道

  • are where electrons might be with a certainty of 95%.

    有大約95%的確定性為電子的著落處

  • The probability of finding an electron approaches 0

    找到一個電子的概率接近0

  • the further we get away from the atom core,

    要進一步我們必須擺脫原子核

  • but it actually never is zero, which means that, in theory,

    但它實際上不會永遠是0,這意味著,從理論上講,

  • the electron of an atom could be on the other side of the universe.

    原子中的電子可能在宇宙的另一邊

  • Okay, wait a second.

    好吧,等一下

  • These strange thingies make up all the matter in the universe.

    這些奇怪而且一樣的東西組成所有在宇宙中的物質

  • For many dozens of known elements,

    對於幾十種已知的元素

  • you don’t need many dozens of elementary particles, just three.

    你並不需要幾十種粒子來表示,只需要三個

  • Take one proton and one electron, and you have hydrogen.

    拿一個質子和一個電子,你有氫

  • Add a proton and a neutron, you have helium.

    添加一個質子和一個中子,你有氦氣

  • Add a few more, you get carbon, a few more, fluorine,

    再加一點,你得到碳,再多一些,就是氟

  • even more, gold, and so on.

    加更多,金,以此類推

  • And every atom of an element is the same:

    每一個元素的原子是相同的

  • all hydrogen atoms in the universe, for example, are the same;

    例如:所有的氫原子在宇宙中是相同的;

  • the hydrogen in your body is exactly the same as the hydrogen in the Sun.

    在你身體裡的氫同樣也是在太陽的氫

  • Do you feel confused right now? We certainly do!

    你現在會覺得困惑嗎? 我們肯定是的!

  • Nothing on this scale of the universe makes any sense in our world,

    沒有任何東西在這種規模的宇宙裡講得通

  • and weve not even begun talking about quantum mechanics or the particle zoo,

    而我們甚至還沒有開始談量子力學和粒子動物園

  • which are even stranger!

    這更加奇怪!

  • Our model of atoms has changed a number of times since we first conceived it,

    從我們最初的設想到現在,原子模型已經改變了許多次

  • and the current one will certainly not be the last.

    而現在的模型肯定不會是最後一個

  • So let us support scientists and research

    因此,讓我們支持的科學家和研究

  • and wait for the next wave of mindboggling new information

    並等待下一波令人震驚的新消息

  • about this strange world that is the basis for our existence.

    對於我們這個陌生的世界是這樣的

  • Subtitles by the Amara.org community

Atoms are ridiculous and unbelievably small.

原子真的是小的荒謬又難以置信

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B2 中高級 中文 英國腔 原子 電子 原子核 粒子 夸克 質子

原子到底有多小? (How Small Is An Atom? Spoiler: Very Small.)

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    羅紹桀 發佈於 2015 年 08 月 19 日
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