Placeholder Image

字幕列表 影片播放

已審核 字幕已審核
  • The universe,

    宇宙

  • rather beautiful, isn't it?

    很漂亮,不是嗎?

  • It's quite literally got everything,

    基本上它包含所有東西

  • from the very big

    從很大

  • to the very small.

    到很小都有

  • Sure, there are some less than savory elements in there,

    當然,也包含一些討厭的東西

  • but on the whole, scholars agree that its existence

    但整體而言,科學家仍同意

  • is probably a good thing.

    宇宙的存在大概是件好事

  • Such a good thing, that an entire field

    有整個科學領域的人

  • of scientific endeavor is devoted to its study.

    都投注在宇宙的研究上

  • This is known as cosmology.

    這被稱作宇宙學

  • Cosmologists look at what's out there in space

    宇宙學家像太空探索

  • and piece together the tale of how our universe evolved:

    並拼湊宇宙演進的過程

  • what it's doing now,

    它現在的狀態

  • what it's going to be doing,

    它未來又會如何

  • and how it all began in the first place.

    還有它最初如何形成

  • It was Edwin Hubble who first noticed

    愛德文.哈勃(Edwin Hubble)是第一個注意到

  • that our universe is expanding

    其他星系正在

  • by noting that galaxies seem to be flying

    越離越遠

  • further and further apart.

    而我們宇宙正在擴張的人

  • This implied that everything should have started

    這暗示宇宙中的所有東西

  • with the monumental explosion

    都源於一個

  • of an infinitely hot,

    從極端熱、極端微小的一點產生的

  • infinitely small point.

    強烈爆炸

  • This idea was jokingly referred to at the time

    這個概念在過去被戲稱為

  • as the "Big Bang,"

    「宇宙大爆炸」

  • but as the evidence piled up,

    但支持的證據逐漸累積

  • the notion

    其概念

  • and the name

    和名字

  • actually stuck.

    逐漸為人所接受

  • We know that after the Big Bang,

    我們知道在大爆炸過後

  • the universe cooled down

    宇宙冷卻

  • to form the stars and galaxies that we see today.

    並行成我們現今所見的星體和星系

  • Cosmologist have plenty of ideas

    宇宙學家對於這個過程

  • about how this happened.

    有許多想法

  • But we can also probe the origins of the universe

    但我們也可以在實驗室中重現

  • by recreating the hot, dense conditions that existed

    宇宙最初生成時

  • at the beginning of time in the laboratory.

    高溫、稠密的條件

  • This is done by particle physicists.

    這就是粒子物理學家所做的事

  • Over the past century,

    在過去的一世紀中

  • particle physicists have been studying

    粒子物理學家研究了

  • matter and forces at higher and higher energies.

    更高能量型態的物質和力

  • Firstly with cosmic rays,

    首先是藉由宇宙射線

  • and then with particle accelerators,

    接著借助粒子加速器

  • machines that smash together

    這是能將讓次原子的粒子

  • subatomic particles at great energies.

    在高能狀態下碰撞的機器

  • The greater the energy of accelerator,

    愈是能提供越高能量的加速器

  • the further back in time they can effectively peek.

    愈可讓科學家窺探 接近大霹靂的狀態

  • Today, things are largely made up of atoms,

    現在大部份的物質都由原子組成

  • but a hundreds of seconds after the Big Bang,

    但在大霹靂結束後數百秒內

  • it was too hot for electrons to join

    高熱使電子無法接近原子核

  • atomic nuclei to make atoms.

    以形成原子

  • Instead, the universe consisted of

    這時宇宙是由次原子物質

  • a swirling sea of subatomic matter.

    所組成的渾沌海洋

  • A few seconds after the Big Bang,

    大霹靂後的數秒之後

  • it was hotter still,

    依然炙熱

  • hot enough to overpower the forces

    熱到可以克服

  • that usually hold protons and neutrons together

    將質子和中子

  • in atomic nuclei.

    侷限在原子核內的力量

  • Further back, microseconds after the Big Bang,

    再往前推,大霹靂的數微秒之後

  • and the protons and neutrons were only just beginning

    中子和質子正在由

  • to form from quarks,

    夸克組合而成

  • one of the fundamental building blocks

    夸克是粒子物理學中

  • of the standard model of particle physics.

    組成物質的基礎

  • Further back still,

    再更往前推

  • and the energy was too great even

    能量高過

  • for the quarks to stick together.

    讓夸克連結在一起的能量

  • Physicists hope that by going to even greater energies,

    物理學家希望藉由提供更高能量

  • they can see back to a time

    我們能回到

  • when all the forces were one in the same,

    這所有作用力都相等的時候

  • which would make understanding

    以讓我們更容易地

  • the origins of the universe a lot easier.

    瞭解宇宙的形成

  • To do that, they'll not only need to build bigger colliders,

    所以他們需要建造更大的加速器

  • but also work hard to combine our knowledge

    並將我們對所有事物

  • of the very, very big

    包含很大

  • with the very, very small

    和很小的東西

  • and share these fascinating insights

    並將這些有趣的知識

  • with each other and with,

    分享給更多人

  • well, you.

    包含你

  • And that's how it should be!

    事情就是如此

  • Because, after all,

    因為畢竟

  • when it comes to our universe,

    當我們說到宇宙時

  • we're all in this one together.

    我們都在同一條船上

The universe,

宇宙

字幕與單字
已審核 字幕已審核

單字即點即查 點擊單字可以查詢單字解釋