Einstein's miracle year - Larry Lagerstrom

爱因斯坦的奇迹年 - Larry Lagerstrom

2,683,714 views ・ 2015-01-06

TED-Ed


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翻译人员: Zongzhen Yang 校对人员: Ying Wang
00:18
As 1905 dawned,
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随着1905年的到来,
00:20
the soon-to-be 26-year-old Albert Einstein faced life as a failed academic.
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即将26岁的阿尔伯特爱因斯坦是以一个挂科的大学生的身份面对生活的。
00:27
Most physicists of the time would have scoffed at the idea
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如果说这个不起眼的公务员将对科学做出巨大贡献.
00:30
that this minor civil servant could have much to contribute to science.
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当时的大多数物理学家一定会加以嘲笑。
00:35
Yet within the following year,
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然而在接下来的一年里,
00:36
Einstein would publish not one,
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爱因斯坦发表了不止一篇,
00:38
not two,
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不止两篇,
00:40
not three,
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不止三篇,
00:41
but four extraordinary papers, each on a different topic,
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而是四篇课题各不相同却都非同凡响的论文,
00:45
that were destined to radically transform our understanding of the universe.
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它们注定将彻底改变我们对宇宙的认识。
00:51
The myth that Einstein had failed math is just that.
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这也就是为什么爱因斯坦数学挂科了。
00:54
He had mastered calculus on his own by the age of 15
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他15岁时已经自己掌握了微积分,
00:58
and done well at both his Munich secondary school
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并且在慕尼黑中学和瑞士理工学院,
01:00
and at the Swiss Polytechnic,
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都有不错的表现。
01:02
where he studied for a math and physics teaching diploma.
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他在这两所学校获得了数学和物理教学学位
01:06
But skipping classes to spend more time in the lab
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但是为了更多地待在实验室里而翘课,
01:09
and neglecting to show proper deference to his professors
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并忽视了对教授表示应有的尊重,
01:12
had derailed his intended career path.
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这让他偏离了预期的职业道路。
01:15
Passed over even for a lab assistant position,
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连一个实验室助理的职位都不被考虑,
01:18
he had to settle for a job at the Swiss patent office,
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他只好在一位朋友的父亲的帮助下,
01:21
obtained with the help of a friend's father.
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在瑞士专利局谋了一份工作。
01:24
Working six days a week as a patent clerk,
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尽管作为一个专利审查员一周要工作六天,
01:26
Einstein still managed to make some time for physics,
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爱因斯坦仍然能给物理学留出一些时间,
01:29
discussing the latest work with a few close friends,
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与几个好友讨论最新的著作,
01:33
and publishing a couple of minor papers.
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并发表一些不怎么重要的论文。
01:35
It came as a major surprise
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令人大吃一惊的是,
01:37
when in March 1905 he submitted a paper with a shocking hypothesis.
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他在1905年三月发表了一篇有着惊人假设的论文。
01:42
Despite decades of evidence that light was a wave,
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不顾几十年来可以证明光是波的证据,
01:45
Einstein proposed that it could, in fact, be a particle,
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爱因斯坦提出,光,实际上可以是粒子,
01:49
showing that mysterious phenomena, such as the photoelectric effect,
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并表明一些神秘的现象,比如光电效应,
01:53
could be explained by his hypothesis.
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可以用他的假说来解释。
01:56
The idea was derided for years to come,
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这个观点在接下来的几年里一直被嘲笑,
01:58
but Einstein was simply twenty years ahead of his time.
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但爱因斯坦只是领先了他的时代二十年。
02:01
Wave-particle duality was slated to become a cornerstone of the quantum revolution.
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波粒二象性被载入史册成为量子革命的奠基石。
02:07
Two months later in May, Einstein submitted a second paper,
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两个月之后,爱因斯坦提交了第二篇论文,
02:11
this time tackling the centuries old question of whether atoms actually exist.
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这次他研究的是延续了几个世纪的古老命题-原子是否存在。
02:16
Though certain theories were built on the idea of invisible atoms,
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尽管某些理论是建立在不可见的原子概念上的,
02:19
some prominent scientists still believed them to be a useful fiction,
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一些杰出的科学家还是认为比起真实的物理对象,
02:24
rather than actual physical objects.
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原子更像是一个有用的假设。
02:26
But Einstein used an ingenious argument,
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但是爱因斯坦用了一个独创的论点,
02:29
showing that the behavior of small particles
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展示了微小粒子的运动,
02:31
randomly moving around in a liquid, known as Brownian motion,
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小分子在液体中的不规则运动,也就是布朗运动。
02:35
could be precisely predicted
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布朗运动可以被准确的预测
02:37
by the collisions of millions of invisible atoms.
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因为它是通过数以百万计的不可见的原子互相撞击而形成的。
02:40
Experiments soon confirmed Einstein's model,
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不久,实验就证明了爱因斯坦的模型,
02:43
and atomic skeptics threw in the towel.
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原子论的怀疑者也拱手认输。
02:47
The third paper came in June.
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第三篇论文发表于六月。
02:49
For a long time,
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在很长一段时间里,
02:51
Einstein had been troubled by an inconsistency
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爱因斯坦一直被物理学中两个基础原理的不一致所困扰。
02:53
between two fundamental principles of physics.
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在两个基础的物理原理间,
02:56
The well established principle of relativity,
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被广泛接受的相对性原理,
02:58
going all the way back to Galileo,
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在伽里略时期就已经被确立
03:00
stated that absolute motion could not be defined.
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它阐明绝对的运动是无法定义的。
03:04
Yet electromagnetic theory, also well established,
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然而同样被广泛接受的电磁理论,
03:07
asserted that absolute motion did exist.
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则声称绝对的运动是存在的。
03:10
The discrepancy, and his inability to resolve it,
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这个矛盾和自己的无能为力
03:13
left Einstein in what he described as a state of psychic tension.
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使爱因斯坦陷入了被他称作"精神紧张"的状态。
03:17
But one day in May,
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但是五月的一天,
03:18
after he had mulled over the puzzle with his friend Michele Besso,
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在和他的朋友米榭贝索探讨这个谜题后,
03:21
the clouds parted.
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爱因斯坦感到云开雾散。
03:24
Einstein realized that the contradiction could be resolved
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爱因斯坦意识到,这个矛盾是可以化解的,
03:26
if it was the speed of light that remained constant,
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即如果光速是恒定的,
03:29
regardless of reference frame,
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不论它处于何种参考系中。
03:32
while both time and space were relative to the observer.
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而时间和空间对于观测者都是相对的。
03:36
It took Einstein only a few weeks to work out the details
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爱因斯坦只用的几周时间就完成了细节,
03:39
and formulate what came to be known as special relativity.
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并用公式表达出了后来被称作狭义相对论的内容。
03:43
The theory not only shattered our previous understanding of reality
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这个理论不仅粉碎了我们之前对现实的认识,
03:46
but would also pave the way for technologies,
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还为技术发展铺平了道路,
03:49
ranging from particle accelerators,
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从粒子加速器,
03:51
to the global positioning system.
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到全球定位系统。
03:53
One might think that this was enough,
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你也许认为这已经足够了,
03:55
but in September,
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但是在九月,
03:56
a fourth paper arrived as a "by the way" follow-up to the special relativity paper.
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第四篇论文以狭义相对论论文的后续的方式诞生了。
04:02
Einstein had thought a little bit more about his theory,
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爱因斯坦进一步思考了他的理论,
04:04
and realized it also implied that mass and energy,
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然后意识到它还暗示了质量和能量,
04:08
one apparently solid and the other supposedly ethereal,
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一个是明显实体的,另一个被认为是飘渺的,
04:12
were actually equivalent.
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实际上是等价的。
04:15
And their relationship could be expressed in what was to become the most famous
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它们的关系可以用一个很著名的方程式来表达
04:18
and consequential equation in history:
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这个方程式而后也成为了历史上最重要的方程式之一:
04:21
E=mc^2.
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E=mc^2.
04:25
Einstein would not become a world famous icon for nearly another fifteen years.
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爱因斯坦在接下来的近15年里都没有成为举世闻名的偶像。
04:29
It was only after his later general theory of relativity was confirmed in 1919
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直到1919年测量星光在日全食中的弯曲
04:34
by measuring the bending of starlight during a solar eclipse
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确认了他后来的广义相对论,
04:38
that the press would turn him into a celebrity.
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媒体才把他变成了一个名人。
04:41
But even if he had disappeared back into the patent office
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但是尽管他随后就回到专利局里销声匿迹,
04:44
and accomplished nothing else after 1905,
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并在1905年之后一无所成,
04:47
those four papers of his miracle year
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他在他那奇迹般的一年里写出的4篇论文
04:50
would have remained the gold standard of startling unexpected genius.
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使他成为令人震惊的天才。
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