ABOUT THE SPEAKER
Murray Gell-Mann - Physicist
Murray Gell-Mann brings visibility to a crucial aspect of our existence that we can't actually see: elemental particles. He won the Nobel Prize in Physics for introducing quarks, one of two fundamental ingredients for all matter in the universe.

Why you should listen

He's been called "the man with five brains" -- and Murray Gell-Mann has the resume to prove it. In addition to being a Nobel laureate, he is an accomplished physicist who's earned numerous awards, medals and honorary degrees for his work with subatomic particles, including the groundbreaking theory that the nucleus of an atom comprises 100 or so fundamental building blocks called quarks.

Gell-Mann's influence extends well beyond his field: He's a member of the National Academy of Sciences, the American Academy of Arts and Sciences, and the Council on Foreign Relations. He also serves on the board of the Wildlife Conservation Society and is a director of Encyclopedia Britannica. Gell-Mann, a professor emeritus of Caltech, now heads the evolution of human languages program at the Santa Fe Institute, which he cofounded in 1984.

A prolific writer -- he's penned scores of academic papers and several books, including The Quark and the Jaguar -- Gell-Mann is also the subject of the popular science biography Strange Beauty: Murray Gell-Mann and the Revolution in 20th-Century Physics.

More profile about the speaker
Murray Gell-Mann | Speaker | TED.com
TED2007

Murray Gell-Mann: Beauty, truth and ... physics?

莫瑞‧蓋曼(Murray Gell-Mann)談物理之美與真相

Filmed:
1,420,558 views

諾貝爾獎得主莫瑞‧蓋曼(Murray Gell-Mann)以幽默及科普的口吻, 震撼了TED的成員對粒子物理的知識. 物理定律的方程式定是簡潔優美的嗎?
- Physicist
Murray Gell-Mann brings visibility to a crucial aspect of our existence that we can't actually see: elemental particles. He won the Nobel Prize in Physics for introducing quarks, one of two fundamental ingredients for all matter in the universe. Full bio

Double-click the English transcript below to play the video.

00:12
Thank you for putting up these pictures圖片 of my colleagues同事 over here.
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謝謝你在旁邊掛上我"同事"的相片.
00:16
(Laughter笑聲) We'll be talking about them.
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(笑聲). 等一下會談到他們.
00:21
Now, I'm going try an experiment實驗. I don't do experiments實驗, normally一般. I'm a theorist理論家.
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現在, 我想作個實驗. 但我平時不作實驗的, 我是搞理論的.
00:26
But I'm going see what happens發生 if I press this button按鍵.
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來看看按下這個按鈕會發生什麼現象.
00:30
Sure enough足夠. OK. I used to work in this field領域 of elementary初級 particles粒子.
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果然如此. 好的. 我曾研究過基本粒子.
00:35
What happens發生 to matter if you chop it up very fine?
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若你將它切成很小塊會發生什麼事呢?
00:39
What is it made製作 of?
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它是由什麼組成的?
00:41
And the laws法律 of these particles粒子 are valid有效 throughout始終 the universe宇宙,
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這些粒子的物理定律放諸宇宙各處都是正確的,
00:46
and they're very much connected連接的 with the history歷史 of the universe宇宙.
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且它們與宇宙的歷史是息息相關的.
00:49
We know a lot about four forces軍隊. There must必須 be a lot more,
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我們雖了解四種基本力(強,弱作用,電磁,重力). 但一定還有更多種未知力,
00:52
but those are at very, very small distances距離,
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只是其作用距離非常, 非常小,
00:54
and we haven't沒有 really interacted互動 with them very much yet然而.
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我們還未真的接觸過它們.
00:57
The main主要 thing I want to talk about is this:
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我主要想談的是:
01:01
that we have this remarkable卓越 experience經驗 in this field領域 of fundamental基本的 physics物理
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對於探究基本的物理定律, 我們有一個神奇的經驗法則,
01:05
that beauty美女 is a very successful成功 criterion標準 for choosing選擇 the right theory理論.
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就是若方程式越"簡潔優美", 往往越有希望是正確的理論.
01:12
And why on earth地球 could that be so?
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但這未免也太扯了吧?
01:17
Well, here's這裡的 an example from my own擁有 experience經驗.
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好吧, 舉一個我個人的經驗為例.
01:20
It's fairly相當 dramatic戲劇性, actually其實, to have this happen發生.
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其實還蠻 戲劇化的.
01:25
Three or four of us, in 1957,
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1957年時, 包括我共三或四位
01:28
put forward前鋒 a partially部分 complete完成 theory理論 of one of these forces軍隊, this weak force.
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對四種力之一的弱作用力, 提出了一個半完成的理論.
01:33
And it was in disagreement異議 with seven -- seven, count計數 them, seven experiments實驗.
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但是當時與七個實驗結果不相符. (七, 沒錯, 竟有七個)
01:39
Experiments實驗 were all wrong錯誤.
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那些實驗結果全錯了.
01:42
And we published發表 before knowing會心 that,
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但我們早在被證實前, 照樣敢發表那理論
01:44
because we figured想通 it was so beautiful美麗, it's gotta總得 be right!
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因為我們覺得那理論太美了, 它非得要對才行!
01:47
The experiments實驗 had to be wrong錯誤, and they were.
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所以那些實驗非得是錯的, 果不其然.
01:50
Now our friend朋友 over there, Albert阿爾伯特 Einstein愛因斯坦,
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現在來談談我們的一位老友, 愛因斯坦,
01:53
used to pay工資 very little attention注意 when people said,
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他總是毫不在意當有人對他說:
01:57
"You know, there's a man with an experiment實驗 that seems似乎 to disagree不同意 with special特別 relativity相對論.
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"你聽說了嗎, DC Miller作出一項實驗似乎與相對論矛盾,
02:02
DCDC Miller磨坊主. What about that?" And he would say, "Aw, that'll那會 go away." (Laughter笑聲)
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你有什麼看法?" 他總是答: "喔, 那會過去的." (笑聲)
02:11
Now, why does stuff東東 like that work? That's the question.
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所以, 到底為什麼簡潔優美如此成功? 這是關鍵問題.
02:14
Now, yeah, what do we mean by beautiful美麗? That's one thing.
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現在, 對, 至於我所指的"美"是什麼意思? 這是另一個問題,
02:19
I'll try to make that clear明確 -- partially部分 clear明確.
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我會試著解釋清楚, 大致上清楚.
02:22
Why should it work, and is this something to do with human人的 beings眾生?
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為何美如此成功, 這跟人類的心靈有關嗎?
02:27
I'll let you in on the answer回答 to the last one that I offer提供,
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這答案我就直接講了,
02:30
and that is, it has nothing to do with human人的 beings眾生.
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答案就是, 它跟人類心靈一點關係都沒有.
02:32
Somewhere某處 in some other planet行星, orbiting軌道 some very distant遙遠 star,
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假設有另一個繞著某個太陽的地球, 或許在另一個銀河系裡,
02:37
maybe in a another另一個 galaxy星系,
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在那星球上的某處,
02:39
there could well be entities實體 that are at least最小 as intelligent智能 as we are,
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住著與我們至少並論的智慧生物,
02:43
and are interested有興趣 in science科學. It's not impossible不可能; I think there probably大概 are lots.
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且它們對科學也有興趣. 這非不可能, 我覺得還蠻有機會的.
02:48
Very likely容易, none沒有 is close enough足夠 to interact相互作用 with us.
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顯而易見的, 我們相隔過遠無法互動.
02:51
But they could be out there, very easily容易.
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但是它們現在可能就在外面, 輕而易舉地.
02:56
And suppose假設 they have, you know, very different不同 sensory感覺的 apparatus儀器, and so on.
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假設它們存在, 你也知道, 有著奇特的感覺器官等.
03:02
They have seven tentacles觸手, and they have 14 little funny-looking有趣的樣子 compound複合 eyes眼睛,
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可能有七肢觸手, 14個可笑的複眼, 及
03:07
and a brain shaped成形 like a pretzel椒鹽捲餅.
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一個長得像中國繩結的腦.
03:11
Would they really have different不同 laws法律?
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那它們會有不同的物理定律嗎?
03:14
There are lots of people who believe that, and I think it is utter說出 baloney胡扯.
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有許多人是這樣認為的, 但我認為那是一派胡言.
03:18
I think there are laws法律 out there,
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我認為世上存在著終極正確的物理定律組,
03:20
and we of course課程 don't understand理解 them at any given特定 time very well
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當然人類至今從未真正的掌握它們,
03:26
-- but we try. And we try to get closer接近 and closer接近.
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但我們不斷嘗試. 試著去揭開它層層面紗.
03:29
And someday日後, we may可能 actually其實 figure數字 out the fundamental基本的 unified統一 theory理論
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或許有那麼一天, 我們真的解出有關粒子與其作用力
03:33
of the particles粒子 and forces軍隊, what I call the "fundamental基本的 law."
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的 終極 統一 基本物理理論, 我稱之為"基本定律".
03:38
We may可能 not even be terribly可怕 far from it.
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我們離此目標也許已非遙不可及.
03:40
But even if we don't run across橫過 it in our lifetimes壽命,
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但就算在我們有生之年還未能達成,
03:43
we can still think there is one out there,
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我們可以相信那是存在的,
03:46
and we're just trying to get closer接近 and closer接近 to it.
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並朝此目標慢慢靠近.
03:48
I think that's the main主要 point to be made製作.
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我覺得這就是我想傳達的.
03:51
We express表現 these things mathematically數學.
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我們用數學去描述定律.
03:54
And when the mathematics數學 is very simple簡單 --
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當我指數學型式很簡潔時,
03:56
when in terms條款 of some mathematical數學的 notation符號,
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只要利用一些已知數學符號,
04:00
you can write the theory理論 in a very brief簡要 space空間, without a lot of complication並發症 --
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就可以將整個理論寫下來, 且用很小的空間, 也不會很複雜.
04:06
that's essentially實質上 what we mean by beauty美女 or elegance優雅.
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這就是我所指的美或優雅.
04:10
Here's這裡的 what I was saying about the laws法律. They're really there.
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這裡是我剛才對於物理定律所談的. 它們真的存在.
04:16
Newton牛頓 certainly當然 believed相信 that.
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牛頓也深信不疑.
04:18
And he said, here, "It is the business商業 of natural自然 philosophy哲學 to find out those laws法律."
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他說過, 在這, "找出那些定律是科學的主要工作."
04:28
The basic基本 law, let's say -- here's這裡的 an assumption假設.
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讓我們對"基本定律"作個假設:
04:31
The assumption假設 is that the basic基本 law really takes the form形成
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"假定基本定律真的將
04:34
of a unified統一 theory理論 of all the particles粒子.
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所有基本力與粒子的量子理論 統一了."
04:37
Now, some people call that a theory理論 of everything.
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現在, 有些人稱它為 無所不知理論(上帝不擲骰子).
04:40
That's wrong錯誤 because the theory理論 is quantum量子 mechanical機械.
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那是錯的, 因為這理論與量子力學有關.
04:45
And I won't慣於 go into a lot of stuff東東 about quantum量子 mechanics機械學 and what it's like, and so on.
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我不會講一堆量子力學的東西, 或試著去解釋它之類的.
04:49
You've heard聽說 a lot of wrong錯誤 things about it anyway無論如何. (Laughter笑聲)
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反正你們早就聽過許多, 但錯誤, 的訊息了. (笑聲)
04:54
There are even movies電影 about it with a lot of wrong錯誤 stuff東東.
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甚至連許多相關的電影也充斥著錯誤.
04:57
But the main主要 thing here is that it predicts預測 probabilities概率.
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但量子力學最主要一點就是: 它與機率有關,(測不準, 上帝擲骰子)
05:02
Now, sometimes有時 those probabilities概率 are near certainties確定性.
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好 ,有時候測不準的範圍非常小, 接近準確.
05:05
And in a lot of familiar cases, they of course課程 are.
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對許多日常熟悉的現象, 一像也都是如此準確.
05:08
But other times they're not, and you have only probabilities概率 for different不同 outcomes結果.
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但其他時候可不是, 你只能知道各種可能發生的結果的機率而已.
05:14
So what that means手段 is that the history歷史 of the universe宇宙 is not determined決心 just by the fundamental基本的 law.
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所以這表示, 宇宙至今天的歷史不全由單單基本定律所決定的,
05:20
It's the fundamental基本的 law and this incredibly令人難以置信 long series系列 of accidents事故,
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是由基本定律, "和"無時無刻不斷的意外,
05:25
or chance機會 outcomes結果, that are there in addition加成.
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或說"機率下的結果", 兩者交互參雜所致.
05:30
And the fundamental基本的 theory理論 doesn't include包括 those chance機會 outcomes結果; they are in addition加成.
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基本定律並"不能算出"隨機下的結果,
05:36
So it's not a theory理論 of everything. And in fact事實, a huge巨大 amount of the information信息
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所以它不是"無所不知理論". 事實上, 在宇宙中
05:40
in the universe宇宙 around us comes from those accidents事故,
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有非常大量的資訊都是因種種意外產生
05:44
and not just from the fundamental基本的 laws法律.
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而不僅僅基本定律在作用而已.
05:47
Now, it's often經常 said that getting得到 closer接近 and closer接近
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現在, 常有人提到, 為了要越來越接近基本定律,
05:55
to the fundamental基本的 laws法律 by examining檢查 phenomena現象 at low energies能量, and then higher更高 energies能量,
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需要研究低能量物理, 而後是高能量,
06:00
and then higher更高 energies能量, or short distances距離, and then shorter distances距離,
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接著再更高, 或是縮小量測尺度, 然後再小一點,
06:03
and then still shorter distances距離, and so on, is like peeling去皮 the skin皮膚 of an onion洋蔥.
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接著再更小, 等等. 類似剝洋蔥皮.
06:07
And we keep doing that,
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我們奉行不渝,
06:09
and build建立 more powerful強大 machines, accelerators加速器 for particles粒子.
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建造更強大的機器, 例粒子加速器.
06:13
We look deeper更深 and deeper更深 into the structure結構體 of particles粒子,
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我們越來越深入研究粒子的內在結構.
06:18
and in that way we get probably大概 closer接近 and closer接近 to this fundamental基本的 law.
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如此這般, 我們或許越來越接近所謂基本定律.
06:25
Now, what happens發生 is that as we do that, as we peel these skins of the onion洋蔥,
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現在, 當我們實行這些事, 或剝掉層層洋蔥皮時,
06:31
and we get closer接近 and closer接近 to the underlying底層 law,
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也越來越靠近其蘊藏的定律,
06:34
we see that each skin皮膚 has something in common共同 with the previous以前 one,
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我們發現每一層皮與前一層有某些相似之處,
06:39
and with the next下一個 one. We write them out mathematically數學,
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對下一層也是. 當用數學表示時,
06:43
and we see they use very similar類似 mathematics數學.
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發現它們使用的數學很類似.
06:46
They require要求 very similar類似 mathematics數學.
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所需的數學工具很類似.
06:49
That is absolutely絕對 remarkable卓越, and that is a central中央 feature特徵
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這是絕對值得關注的, 這也是我今天
06:53
of what I'm trying to say today今天.
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試著想表達的重點.
06:58
Newton牛頓 called it -- that's Newton牛頓, by the way -- that one.
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牛頓稱其為, (順便說一下, 他是牛頓, 那一位.
07:01
This one is Albert阿爾伯特 Einstein愛因斯坦. Hi你好, Al! And anyway無論如何,
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這位是愛因斯坦. 嗨, 小愛! 言歸正傳),
07:08
he said, "nature性質 conformable順應性 to herself她自己" -- personifying化身 nature性質 as a female.
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他說:"大自然遵循她自己". (將大自然擬人化為女性)
07:15
And so what happens發生 is that the new phenomena現象,
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所以當我們探究新的現象時,
07:20
the new skins, the inner skins of the slightly smaller skins of the onion洋蔥
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也就是洋蔥新的一層皮 (稍小且位於內層的皮,
07:26
that we get to, resemble類似 the slightly larger ones那些.
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相較於稍大的舊皮).
07:30
And the kind of mathematics數學 that we had for the previous以前 skin皮膚
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我們研究舊皮所得的數學知識,
07:36
is almost幾乎 the same相同 as what we need for the next下一個 skin皮膚.
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與瞭解新皮所需的數學知識大致相等.
07:40
And that's why the equations方程 look so simple簡單.
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由於所需的數學已被研究過了,
07:44
Because they use mathematics數學 we already已經 have.
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這也是為什麼物理定理方程式看起來非常簡潔.
07:47
A trivial不重要的 example is this: Newton牛頓 found發現 the law of gravity重力,
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舉個平凡的例子: 牛頓發現了重力,
07:52
which哪一個 goes like one over the square廣場 of the distance距離 between之間 the things gravitated被吸引.
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其力的強弱隨兩物體間距的平方衰減.
07:57
Coulomb庫侖, in France法國, found發現 the same相同 law for electric電動 charges收費.
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庫倫, 法國人, 發現電荷間的作用力 也是依間距平方衰減.
08:02
Here's這裡的 an example of this similarity相似.
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這就是一個數學相似例子.
08:04
You look at gravity重力, you see a certain某些 law.
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當你看重力時, 你得到一個定律.
08:07
Then you look at electricity電力. Sure enough足夠. The same相同 rule規則.
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當你看電力時. 當然, 也是同樣一個定律.
08:10
It's a very simple簡單 example.
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這是一個簡單的例子.
08:12
There are lots of more sophisticated複雜的 examples例子.
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還有許多複雜的例子,
08:16
Symmetry對稱 is very important重要 in this discussion討論.
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其中, "對稱性"非常重要.
08:18
You know what it means手段. A circle, for example,
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你也知道的. 比如說, 一個圓
08:21
is symmetric對稱 under rotations旋轉 about the center中央 of the circle.
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就轉動而言, 是對稱於其圓心.
08:25
You rotate迴轉 around the center中央 of the circle, the circle remains遺跡 unchanged不變.
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當你將它繞著其圓心旋轉, 其外形不會改變.
08:30
You take a sphere領域, in three dimensions尺寸, you rotate迴轉 around the center中央 of the sphere領域,
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或是有一個三維立體的球殼, 將之繞其球心旋轉,
08:33
and all those rotations旋轉 leave離開 the sphere領域 alone單獨.
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不管怎麼轉, 它的外形還是不變.
08:37
They are symmetries對稱性 of the sphere領域.
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這就是球殼的對稱性.
08:38
So we say, in general一般, that there's a symmetry對稱
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所以我們可將之推廣: "若某物在一特定的操作下,
08:42
under certain某些 operations操作 if those operations操作 leave離開 the phenomenon現象,
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其本身持有的現象或特徵沒有改變,
08:46
or its description描述, unchanged不變.
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我們就說它, 在那操作之下是對稱的."
08:49
Maxwell's麥克斯韋 equations方程 are of course課程 symmetrical對稱
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麥克斯威(Maxwell)方程組, 當然,
08:52
under rotations旋轉 of all of space空間.
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在空間中的旋轉下是對稱的.
08:54
Doesn't matter if we turn the whole整個 of space空間 around by some angle角度,
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也就是說, 我們可以任意改變觀察的角度,
08:58
it doesn't leave離開 the -- doesn't change更改 the phenomenon現象 of electricity電力 or magnetism磁性.
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但不會讓...不會改變電磁效應的實驗結果.
09:02
There's a new notation符號 in the 19th century世紀 that expressed表達 this,
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19世紀時, 對於這種 旋轉對稱 有新的數學符號,
09:06
and if you use that notation符號, the equations方程 get a lot simpler簡單.
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若你使用了這種符號, 麥克斯威方程組 可被大大的簡化.
09:10
Then Einstein愛因斯坦, with his special特別 theory理論 of relativity相對論,
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接著, 愛因斯坦 透過特殊的座標轉換理論,
09:13
looked看著 at a whole整個 set of symmetries對稱性 of Maxwell's麥克斯韋 equations方程,
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更看到了 麥克斯威方程組 裡新的對稱性,
09:16
which哪一個 are called special特別 relativity相對論.
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也就是狹義相對論.
09:19
And those symmetries對稱性, then, make the equations方程 even shorter, and even prettier漂亮, therefore因此.
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這些對稱性, 使得此方程組更簡短, 更美, 因此....
09:24
Let's look. You don't have to know what these things mean, doesn't make any difference區別.
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你來看. 你不須要瞭解這些東西的意義, 沒什麼差.
09:27
But you can just look at the form形成. (Laughter笑聲) You can look at the form形成.
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你只須看它的外形. (笑聲) 你可以看它的外形.
09:31
You see above以上, at the top最佳, a long list名單
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看上面, 在頂端, 有一長列清單
09:33
of equations方程 with three components組件 for the three directions方向 of space空間: x, y and z.
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表示麥克斯威方程式, 在三維空間中的不同方向, 可寫成不同的式子.
09:39
Then, using運用 vector向量 analysis分析, you use rotational旋轉 symmetry對稱, and you get this next下一個 set.
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接著, 利用向量分析, 旋轉的對稱性 來簡化, 你可得到到第二組.
09:45
Then you use the symmetry對稱 of special特別 relativity相對論 and you get an even simpler簡單 set
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若再運用 狹義相對論 裡的對稱性, 甚至能更加精簡至
09:49
down here, showing展示 that symmetry對稱 exhibits展品 better and better.
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在下面這, 其對稱性已展露無遺.
09:53
The more and more symmetry對稱 you have, the better you exhibit展示 the simplicity簡單 and elegance優雅 of the theory理論.
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若方程式有越多種類的對稱性, 你越能展現出那個理論的精簡與優美.
09:59
The last two, the first equation方程 says that electric電動 charges收費 and currents電流
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最後兩行, 第一個方程式表示電荷與電流會
10:03
give rise上升 to all the electric電動 and magnetic磁性 fields領域.
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產生電場及磁場.
10:07
The next下一個 -- second第二 -- equation方程 says that there is no magnetism磁性 other than that.
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下一個...第二個方程式表示, 沒有其它辦法可以生成磁場.
10:12
The only magnetism磁性 comes from electric電動 charges收費 and currents電流.
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磁場產生唯一的來源, 就只能是電流.
10:15
Someday日後 we may可能 find some slight輕微 hole in that argument論據.
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或許有天我們能找出此論點的小漏洞,
10:20
But for the moment時刻, that's the case案件.
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但目前為止, 就是這樣.
10:24
Now, here is a very exciting扣人心弦 development發展 that many許多 people have not heard聽說 of.
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好, 物理有一個非常另人興奮的突破, 許多人可能沒聽過.
10:28
They should have heard聽說 of it, but it's a little tricky狡猾 to explain說明 in technical技術 detail詳情,
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但都應該要知道. 只不過若要解釋其中技術上的細節, 有一點微妙,
10:33
so I won't慣於 do it. I'll just mention提到 it. (Laughter笑聲)
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所以我不幹. 我只會帶過. (笑聲)
10:36
But Chen Ning Yang, called by us "Frank坦率" Yang -- (Laughter笑聲)
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楊振寧(英名: 富蘭克林), 我們稱他"阿富", (笑聲)
10:46
-- and Bob短發 Mills米爾斯 put forward前鋒, 50 years年份 ago,
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與 米爾斯(Bob Mills) 50年前提出
10:50
this generalization概括 of Maxwell's麥克斯韋 equations方程, with a new symmetry對稱.
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更廣義的 麥克斯威方程式 與其蘊涵的新的對稱性質.
10:54
A whole整個 new symmetry對稱.
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前所未見的對稱性.
10:56
Mathematics數學 very similar類似, but there was a whole整個 new symmetry對稱.
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數學上很類似, 不過是全新的對稱性.
10:59
They hoped希望 that this would contribute有助於 somehow不知何故 to particle粒子 physics物理
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他們希望這能對 粒子物理 多少有些貢獻,
11:04
-- didn't. It didn't, by itself本身, contribute有助於 to particle粒子 physics物理.
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可惜. 光靠那還不足以幫助到 粒子物理理論.
11:08
But then some of us generalized一般性 it further進一步. And then it did!
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後來有些粒子物理學家將之更進一步推廣, 終於成功了!
11:13
And it gave a very beautiful美麗 description描述 of the strong強大 force and of the weak force.
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對於強, 弱作用力 給出了非常漂亮的解釋.
11:18
So here we say, again, what we said before:
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所以我們可以說, 老話一句:
11:21
that each skin皮膚 of the onion洋蔥 shows節目 a similarity相似 to the adjoining隔壁的 skins.
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相鄰的洋蔥皮保有許多相似處.
11:25
So the mathematics數學 for the adjoining隔壁的 skins is very similar類似 to what we need for the new one.
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所以探究新的皮所需俱備的數學工具, 與舊皮非常相似.
11:30
And therefore因此 it looks容貌 beautiful美麗
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理論看起來很美,
11:32
because we already已經 know how to write it in a lovely可愛, concise簡潔 way.
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是因為我們早知道如何將其數學化簡, 美化.
11:36
So here are the themes主題. We believe there is a unified統一 theory理論 underlying底層 all the regularities規律.
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總而言之, 我們相信, 在所有這些規律性之下, 存在一個大統一的理論.
11:45
Steps腳步 toward unification統一 exhibit展示 the simplicity簡單.
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理論相互不斷地統合導致簡化.
11:49
Symmetry對稱 exhibits展品 the simplicity簡單.
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對稱性也使之趨向簡化.
11:51
And then there is self-similarity自相似性 across橫過 the scales -- in other words,
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且物理在不同的尺度下, 都有許多相似處. 換句話說,
11:55
from one skin皮膚 of the onion洋蔥 to another另一個 one.
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對不同層的洋蔥皮,
11:57
Proximate最近的 self-similarity自相似性. And that accounts賬戶 for this phenomenon現象.
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彼此類似. 這解釋了一個現象,
12:02
That will account帳戶 for why beauty美女 is a successful成功 criterion標準 for selecting選擇 the right theory理論.
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解釋了為什麼"美"對於正確的理論這麼重要.
12:09
Here's這裡的 what Newton牛頓 himself他自己 said:
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這裡是牛頓他説曾說的:
12:10
"Nature性質 is very consonant輔音 and conformable順應性 to her self."
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"大自然始終如一的遵循她自己."
12:14
One thing he was thinking思維 of is something that most of us take for granted理所當然 today今天,
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他當初提出了一個東西, 如今大部分人覺得理所當然,
12:18
but in his day it wasn't taken採取 for granted理所當然.
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但在當時可不一樣.
12:21
There's the story故事, which哪一個 is not absolutely絕對 certain某些 to be right, but a lot of people told it.
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這個故事就是, (可能不全然事實, 但流傳很廣,
12:27
Four sources來源 told it. That when they had the plague鼠疫 in Cambridge劍橋,
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故事來源有四處.) 當時劍橋瘟疫流行,
12:31
and he went down to his mother's母親 farm農場 -- because the university大學 was closed關閉 --
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牛頓就回到他母親的農場. (因為大學暫時停課)
12:35
he saw an apple蘋果 fall秋季 from a tree, or on his head or something.
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他看到一顆蘋果從樹上落下, 不知道有沒有砸到他的頭或什麼.
12:39
And he realized實現 suddenly突然 that the force that drew德魯 the apple蘋果 down to the earth地球
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他突然頓悟, 將蘋果從樹上拉下來的力與
12:43
could be the same相同 as the force regulating調節 the motions運動 of the planets行星 and the moon月亮.
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控制行星及月亮移動的力是相同的.
12:49
That was a big unification統一 for those days, although雖然 today今天 we take it for granted理所當然.
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這在當時可是個大膽的統合, 雖然如今看似理所當然.
12:54
It's the same相同 theory理論 of gravity重力.
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那些力都可以用重力來解釋.
12:58
So he said that this principle原理 of nature性質, consonance和諧:
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所以他覺得大自然的原理, 始終如一, 他說:
13:03
"This principle原理 of nature性質 being存在 very remote遠程 from the conceptions概念 of philosophers哲學家,
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"大自然的原理與哲學家所想的差很多,
13:08
I forbore克制住自己, to describe描述 it in that book,
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我克制自己不將之公布在那本書裡,
13:11
lest免得 I should be accounted an extravagant freak怪物 ... "
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以免我被形容成狂妄的怪胎..."
13:15
That's what we all have to watch out for, (Laughter笑聲) especially特別 at this meeting會議.
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( 這也是我們所要提防的.(笑聲) 特別是在這個聚會. )
13:20
" ... and so prejudice偏見 my readers讀者 against反對 all those things which哪一個 were the main主要 design設計 of the book."
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"...或令讀者對書中主要想傳達的理念有偏見."
13:25
Now, who today今天 would claim要求 that as a mere conceit自負 of the human人的 mind心神?
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好, 如今有誰會認為這些僅是人類心靈下的產物?
13:29
That the force that causes原因 the apple蘋果 to fall秋季 to the ground地面
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例如"讓蘋果落下的力與
13:33
is the same相同 force that causes原因 the planets行星 and the moon月亮 to move移動 around,
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控制行星及月亮移動的力是相同的."
13:36
and so on? Everybody每個人 knows知道 that. It's a property屬性 of gravitation引力.
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之類的. 這是常識了. 這就是重力的性質.
13:41
It's not something in the human人的 mind心神. The human人的 mind心神 can, of course課程, appreciate欣賞 it
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這與人類心靈無關. 人類心靈可以, 當然, 理解它
13:45
and enjoy請享用 it, use it, but it's not -- it doesn't stem from the human人的 mind心神.
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欣賞它, 應用它. 但它不是... 它不源自於人類的心靈.
13:50
It stems from the character字符 of gravity重力.
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它就是重力的性質.
13:52
And that's true真正 of all the things we're talking about.
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我們剛在談論的其它物理也一樣適用.
13:54
They are properties性能 of the fundamental基本的 law.
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它們都是"基本定律"的性質.
13:56
The fundamental基本的 law is such這樣 that the different不同 skins of the onion洋蔥 resemble類似 one another另一個,
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基本定律使得不同層的洋蔥皮彼此相似,
14:02
and therefore因此 the math數學 for one skin皮膚 allows允許 you to express表現 beautifully精美 and simply只是
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因而前一層皮所運用到的數學工具可以用在下一層皮,
14:06
the phenomenon現象 of the next下一個 skin皮膚.
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以致描述的美而簡潔.
14:09
I say here that Newton牛頓 did a lot of things that year:
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1665年夏天, 所謂牛頓的不可思義年:
14:12
gravity重力, the laws法律 of motion運動, the calculus結石, white白色 light composed of all the colors顏色 of the rainbow彩虹.
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萬有引力定律, 三大運動定律, 微積分, 白光是由彩虹色的光組成的.
14:18
And he could have written書面 quite相當 an essay文章 on "What I Did Over My Summer夏季 Vacation假期."
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他應該有許多事情可以寫進 "我的暑假活動" .
14:24
(Laughter笑聲)
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(笑聲)
14:28
So we don't have to assume承擔 these principles原則 as separate分離 metaphysical抽象的 postulates公設.
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所以我們不必妄言 大自然, 美,與數學 皆各行其是, 或僅是純哲學下的公理.
14:38
They follow跟隨 from the fundamental基本的 theory理論.
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它們可能都源自於同一個基本理論.
14:44
They are what we call emergent應急 properties性能.
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這就是我們稱的"衍生"性質.
14:46
You don't need -- you don't need something more to get something more.
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你不需要...你不需要再多, 以得到更多.
14:53
That's what emergence緊急情況 means手段.
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這就是"衍生"的含意.
14:55
Life can emerge出現 from physics物理 and chemistry化學, plus a lot of accidents事故.
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生命是由物理及化學伴隨著許多隨機的意外衍生出來.
15:04
The human人的 mind心神 can arise出現 from neurobiology神經生物學 and a lot of accidents事故,
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人類的心靈是由神經生物學及許多意外所產生的.
15:09
the way the chemical化學 bond arises出現 from physics物理 and certain某些 accidents事故.
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化學鍵是由物理及某些意外所產生的.
15:16
It doesn't diminish減少 the importance重要性 of these subjects主題
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知道這些事物是由許多更基本的事物及
15:20
to know that they follow跟隨 from more fundamental基本的 things, plus accidents事故.
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意外所衍生的, 並不會削弱它們的重要性.
15:26
That's a general一般 rule規則, and it's critically危重 important重要 to realize實現 that.
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這只是個通則, 但領悟這點是極其重要的.
15:31
You don't need something more in order訂購 to get something more.
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你不需要再多, 以得到更多.
15:35
People keep asking that when they read my book, "The Quark夸克 and the Jaguar捷豹,"
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當人們在讀我的書"夸克與美洲豹"時,總會問:
15:39
and they say, "Isn't there something more beyond what you have there?"
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"有沒有某些東西是遠超出存在的事物?"
15:43
Presumably想必, they mean something supernatural超自然.
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想必, 他們指的是某種超自然現象.
15:47
Anyway無論如何, there isn't. (Laughter笑聲)
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嗯, 無論如何, 沒有. (笑聲)
15:49
You don't need something more to explain說明 something more.
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你不需再多, 以解釋更多.
15:54
Thank you very much. (Applause掌聲)
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非常謝謝大家. (鼓掌)
Translated by ryan guan
Reviewed by Zhu Jie

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ABOUT THE SPEAKER
Murray Gell-Mann - Physicist
Murray Gell-Mann brings visibility to a crucial aspect of our existence that we can't actually see: elemental particles. He won the Nobel Prize in Physics for introducing quarks, one of two fundamental ingredients for all matter in the universe.

Why you should listen

He's been called "the man with five brains" -- and Murray Gell-Mann has the resume to prove it. In addition to being a Nobel laureate, he is an accomplished physicist who's earned numerous awards, medals and honorary degrees for his work with subatomic particles, including the groundbreaking theory that the nucleus of an atom comprises 100 or so fundamental building blocks called quarks.

Gell-Mann's influence extends well beyond his field: He's a member of the National Academy of Sciences, the American Academy of Arts and Sciences, and the Council on Foreign Relations. He also serves on the board of the Wildlife Conservation Society and is a director of Encyclopedia Britannica. Gell-Mann, a professor emeritus of Caltech, now heads the evolution of human languages program at the Santa Fe Institute, which he cofounded in 1984.

A prolific writer -- he's penned scores of academic papers and several books, including The Quark and the Jaguar -- Gell-Mann is also the subject of the popular science biography Strange Beauty: Murray Gell-Mann and the Revolution in 20th-Century Physics.

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Murray Gell-Mann | Speaker | TED.com