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时间只是一种顽固的错觉

Time Is But a Stubborn Illusion - Sneak Peek | Genius

时间是什么?
What is time?
一个看似简单的问题 但它却是
A deceptively simplequestion, yet it is the key
理解相对论的关键
to understanding relativity.
它是我头发变白的原因
It is sort of the reasonmy hair is going gray.
[笑声]
[laughter]
当我们描述运动时
When we describemotion, we do so
运动是作为时间的一种功能 十米每秒
as a function of time, 10 meters per second,
一百英里每小时
100 miles per hour.
但是数学上对速率的描述
But the mathematicaldescription of velocity
是没有实际意义的 除非我们可以明确定义时间
is moot unless wecan define time.
时间是全宇宙通有的吗?
Is time universal?
换句话说 在宇宙中是否有一个
In other words, is therean audible tick-tock
听得见的滴答声 一个绝对的钟表 打个比喻说
throughout the galaxy, amaster clock, so to speak,
如同莫扎特的节拍器一般稳步前行?
forging ahead likeMozart’s metronome?
朋友们 答案是否定的
The answer my friends is no.
时间不是绝对的
Time is not absolute.
事实上 对我们 活着的物理学家来说
In fact, for us, the livingphysicists,
过去 现在与未来的区别
the distinction between the past, present, and future
是一个顽固的幻觉
is but a stubborn illusion.
有很多需要考虑 我明白
A lot to consider, I know.
我明白
I know.
[笑声]
[laughter]
但是理解时间是理解相对性的基础
But understanding time isessential to understanding relativity
现在
Now,
我想要你们都闭上眼睛
I want you allto close your eyes.
别担心 我不会咬
Not to worry, I don’t bite.
我只是想找一支新钢笔
But I am on thelookout for a new pen.
[笑声]
[laughter]
现在请闭上你们的眼睛
Go on close your eyes.
去真正的掌握时间的真谛
To truly grasp the idea of time,
我们必须退一步并问出
we must take a step back and ask
什么是光?
what is light?
因此 请和我一起旅行到太阳
So journey with me to the Sun.
光由太阳发出 经过太空到达地球 没错
Light travels from the Sun tothe Earth through space, yes.
当我跟你们一样大时 我想知道
When I was your age,I wanted to know
光如何通过什么都没有的太空穿行?
how can something, light,travel through nothing, space?
让我们分离出一束光波 并伴随它穿行
Let us isolate a light beamand travel alongside it.
但我们要快一点
But let us go faster.
你与我同在
You’re there with me.
快一点
Faster.
再快一点
Faster!
时间是什么?
What is time?
[敲桌声]
[thud]
韦伯教授:爱因斯坦先生 清醒点!
PROFESSOR WEBER: Herr,Einstein, wake up!
我不是在睡觉 先生
I wasn’t sleeping, sir.
我是在思考
I was thinking.
哦 是吗
Oh,really.
具体在思考什么?
About what exactly?
我猜是宇宙的奥秘
The secrets of thecosmos, I suppose.
我认为你应该睁着眼睛 思考三角学
I suggest you thinkabout trigonometry instead, with your eyes open.
坐直起来!
And sit up!
sin与cos的法则?
Laws of sines and cosines?
c的平方等于a的平方加b的平方减去
c squared equals a squaredplus b squared, subtract
二倍cosB
2 [inaudible] cosine b.
韦伯教授:三角形的面积?
PROFESSOR WEBER: Thearea of a triangle?
学生:面积相当于b的平方乘a乘b除以2乘c
STUDENTS:The area equalsb squared times a times b over 2 times c.
韦伯教授:解决……的办法是?
PROFESSOR WEBER: What isthe solution [inaudible]
不同的方程?
differential equation?
爱因斯坦先生 你还在忙着注视
Herr Einstein, are youstill too busy contemplating
宇宙的秘密去解决这个方程吗?
the secrets of the cosmosto solve this equation?
哦 不 先生 我已经解出那个方程了
Oh, no sir.I’ve already solved it.
韦伯教授:立马离开
PROFESSOR WEBER: Leave, now.
因为什么错?
On what offense?
韦伯教授:你的存在就破坏了课堂上对我的尊重!
PROFESSOR WEBER: Your merepresence spoils the respect of the class for me!
那不是一个客观的原因
That is not anobjective reason.
出去
Out!
一个常数的自然对数乘x
The natural log of aconstant multiplied by x
等于(1+v²)的自然对数
equals the natural logof 1 plus v squared.
既然v等于y除以x 那就得出
And since v equals yover x, that gives us
最终的方程 x²+y²-c
the final function, xsquared plus y squared minus c
x的立方根等于0
x cubed equals 0.
说实在的 先生 你的存在
And speaking truthfully,sir, your mere presence
破坏了我对普鲁士数学的未来的尊敬
spoils my respect for thefuture of Prussian mathematics.
出去
Out.
[关门声]
[door slamming]

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视频概述

爱因斯坦与他的时间观

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视频来源

https://www.youtube.com/watch?v=ZyYqyYAKGC0

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