The case of the missing fractals - Alex Rosenthal and George Zaidan

725,872 views ・ 2014-04-29

TED-Ed


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譯者: Jacky Wang 審譯者: Christine Fu
00:18
It was a night like any other night,
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那是個再平常不過的夜晚
00:20
except here I was climbing the platonic peaks
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唯一不同的是 我爬上了一座柏拉圖式的山峰
00:23
like Romeo on a second date.
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像極了二度赴約的羅密歐
00:27
(ugh)
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(哎)
00:29
I was there for the dame.
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我是為了一個女人而來的
00:32
She had eyes like imaginary numbers
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她有著虛數般的眼神
00:33
and curves that went on forever.
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一頭捲髮好似永無止境
00:36
Said she wanted to go home.
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她說她想回去
00:38
Said I could help.
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說我幫得上忙
00:39
Said the pay was good.
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而且報酬還挺豐碩
00:41
Didn't say anything about climbing a...
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卻沒說我必須先爬上……
00:43
Voice: "Who's there?"
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聲音:「是誰在那裡?」
00:44
Manny Brot: "Manny Brot, private eye."
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曼尼博:「曼尼博,私家偵探。」
00:47
Voice: "What are you doing here?"
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聲音:「你在這裡幹什麼?」
00:49
"A pretty number sent me to find a stolen dingus."
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「一位女郎託我尋找 一樣失竊的東西。」
00:52
Voice: "Well, to enter the cave,
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聲音:「想要進入洞穴,
00:54
you must answer my riddles three."
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你必須先解開三道謎題。」
00:56
What was it with riddles,
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為什麼又是謎題?
00:58
and why do they always come in threes?
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而且為什麼總是一次來三題?
01:00
"Is it an egg?"
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「是蛋嗎?」
01:01
"No. Why would it be an egg?"
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「錯。為什麼會是蛋?」
01:03
"It's usually an egg."
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「謎底通常都是蛋。」
01:06
"What can I hold in my hand, but has zero area?"
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「甚麼東西沒有面積, 卻能拿在手上?」
01:11
"Is it a dodo egg?"
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「嘟嘟鳥的蛋?」
01:12
"It's not an egg!"
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「才不是蛋!」
01:13
I took out the rock that had nearly brained me before
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我掏出剛才砸到我的那塊石頭
01:15
and gave it a hard ponder.
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仔細思考了一會兒
01:17
The size of the rising bump on my conk
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頭上的大腫包告訴我
01:18
said to me that this thing had area,
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這東西不但有面積
01:21
and a lot of it.
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而且還不小
01:23
But what if I carved out a triangle from this side here?
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但假如我從這裡 分割出一個三角形呢?
01:25
As any mook could see,
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顯而易見
01:27
this triangle had a quarter of the area of the full triangle.
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這個小三角形的面積是 大三角形的四分之一
01:30
I did the same thing again with each of the smaller triangles.
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對於剩下的三角形重複同樣的過程
01:33
Again, a quarter of the remaining area -- gone.
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就又有四分之一的面積消失不見
01:36
And I just kept going.
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於是我繼續下去
01:38
After an infinite number of cuts,
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經過無限次的分割之後
01:40
I was satisfied that my triangle had zero area.
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我很肯定這個三角形已經沒有面積
01:43
A bounded shape with zero area.
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一個有界的形狀,卻沒有面積
01:47
Now, it's not often that I surprise myself,
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我並不是常常靈光乍現的人
01:49
but my own two mitts had created something crazy,
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這次我卻親手創造出這瘋狂的東西
01:52
and new.
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前所未有
01:54
"Very good. (ahem)
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「非常好。(嗯哼)
01:55
Now, show me a shape with finite area,
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下一題,甚麼形狀面積有限
01:58
but an infinitely long perimeter."
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周長卻是無限長?」
02:01
"Let me get this straight.
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「先讓我搞清楚。
02:03
If I want to make a snip in the border of this shape,
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如果我把這個形狀的一個邊剪開,
02:05
smooth it out, and lay it on the ground ... "
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然後攤平放在地上……」
02:07
"It would go on for ... "
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「它會一直延……」
02:08
"Wait 'til I'm through, and then you can talk.
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「等我講完你才能說話。
02:11
It would go on forever."
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它會一直延伸下去。」
02:13
"Are you through?"
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「說完了嗎?」
02:16
"Yeah."
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「嗯。」
02:17
"So show me that shape then."
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「那麼告訴我那是甚麼形狀吧。」
02:19
Mmm ... I hadn't been this stuck
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嗯……除了 58 年那次 沒有解開魔術方塊之外
02:21
since the Rubik's Cube fiasco of '58.
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這是我第一次感覺這麼苦惱
02:25
All the shapes I knew had perimeters.
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所有我知道的形狀都有周長
02:26
Circles: 2πr. Triangles: sum of their sides.
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圓形:2πr。三角形:三邊總和
02:30
What's this?
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這是甚麼?
02:31
An angle.
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一個角度
02:33
An angle from heaven.
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好似天使下凡
02:35
What if I were to pinch each side, like so.
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如果我像這樣在邊上一捏呢?
02:38
A third of the way through, just so.
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像這樣在三分之一處 弄出新的三角形
02:41
And do it again,
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再一次
02:42
and again,
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再來一次
02:43
and again.
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不斷重複
02:45
After each pinch, the perimeter got a third longer
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每捏一次,這個圖形的 周長就多了三分之一
02:48
because where there had been three line segments,
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因為原本的三段
02:51
now there were four.
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變成了四段
02:53
As for the area,
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至於圖形的面積
02:54
every pinch made more triangles, that's true.
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它的確不斷地在增加
02:57
But those triangles were getting smaller and smaller.
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但不斷增加的三角形卻是越來越小
03:00
You could say that the area was converging,
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因此實際上面積正慢慢在收斂
03:02
approaching a fixed number,
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趨近於一個固定的值
03:04
while the perimeter was just getting bigger and bigger,
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而周長則是不斷增加
03:06
uncontrollably ballooning like an overindulgent birthday clown.
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就像瘋狂的生日派對小丑一樣
03:11
After infinity pinches, flimflam, there it was:
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重複動作無限多次之後,結果會是:
03:15
Finite area, but infinite perimeter.
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有限的面積,無限的周長
03:19
Now that is a piece of work.
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無庸置疑,是個傑作
03:21
"Oh, you're good. (ahem) Riddle three:
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「不錯嘛。(嗯哼)第三題:
03:24
Show me a picture that if I magnify it under my microscope,
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給我一張圖,
03:27
I'll keep seeing the original picture,
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不管我將它放得多大,
03:29
no matter how much I zoom in."
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我永遠會看到相同的圖案。」
03:32
"You're a strange little man."
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「你真是個怪咖。」
03:34
"Thank you."
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「您過獎了。」
03:35
I was out of ideas,
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我毫無頭緒
03:37
so I looked at my muse, my complex Dora.
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我看著朵拉,我的謬思
03:39
Voice: "Who's the dame?"
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聲音:「這位女郎是誰?」
03:41
And then it hit me.
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忽然之間,我開竅了
03:42
"She's a heart breaker, my fractal femme fatale.
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她是我的女神,我的碎形小妖姬
03:45
Will she do?"
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她可以嗎?」
03:46
"Yes, she'll do just fine."
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「完全符合要求。」
03:50
(lightning)
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(雷聲)
03:53
It was dark, and at first I thought the cave was empty,
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起初我以為洞裡甚麼都沒有
03:56
but then I noticed: the box.
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接著我看到了一個箱子
04:00
The dame had played me like a triangle.
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她一直玩弄我於股掌之間
04:02
She had told me she wanted to go home.
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告訴我她想回家
04:04
(Lightning)
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(雷聲)
04:06
What she really wanted was to bring her home here.
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她所謂的家原來是這裡
04:10
The fractals spread everywhere.
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碎形到處蔓延
04:11
Most of them the same
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有些碎形,無論放的多大
04:12
no matter how deep you looked at them,
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你永遠會看到相同的圖案,
04:14
like Dora's mugshot.
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就像那張照片一樣
04:16
Some had infinitely long perimeters,
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有些有著無限的周長
04:18
others were objects with no area or volume,
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還有一些沒有面積和體積的東西
04:20
all of them created through infinite repetition.
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都是由無限次重複得來的
04:24
So, you wanted to know what fractals are?
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想知道碎形是甚麼?
孩子,它們是創造夢想的原料。
04:28
Well, kid, they're the stuff that dreams are made of.
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04:30
(Music)
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(音樂)
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