时间:2019-02-13 作者:英语课 分类:TED演讲教育篇


英语课

   What is at the center of the universe? 宇宙的中心是什么?


  It's an essential question that humans have been wondering about for centuries. 这是个很重要的问题,几百年来,人们一直在探索。
  But the journey toward an answer has been a strange one. 但这段探索之旅的结果却十分奇怪。
  If you wanted to know the answer to this question in third century B.C.E. Greece, 如果你想知道公元三世纪希腊人给出的答案,
  you might look up at the night sky and trust what you see, 你就要问亚里士多德了,
  that's what Aristotle, THE guy to ask back then, did. 他的回答是仰望星空,相信自己的所见。
  He thought that since we're on Earth, looking up, it must be the center, right? 他想:既然我们从地球向天上看,那么地球一定就是宇宙的中心,不是吗?
  For him, the sphere of the world was made up of four elements: Earth, water, air, and fire. 他认为,宇宙是由四种元素组成的:土,水,空气和火。
  These elements shifted around a nested set of solid crystalline spheres. 这些元素在一套嵌套的固体球核周围流动。
  Each of the wandering stars, the planets, had their own crystal sphere. 每个浮于夜空的恒星和行星都有它们自己的球核。
  The rest of the universe and all of its stars were on the last crystal sphere. 宇宙剩下的部分和所有星星在最后的球核上。
  If you watch the sky change over time, 如果你观察天空随时间的变化,
  you could see that this idea worked fine at explaining the motion you saw. 就可以发现这个理论很好得解释了你所看到的变化。
  For centuries, this was central to how Europe and the Islamic world saw the universe. 几个世纪以来 ,它就是欧洲和伊斯兰世界的宇宙观核心。
  But in 1543, a guy named Copernicus proposed a different model. 但是在1543年,一位名叫哥白尼的人提出了一个不同的模型。
  He believed that the sun was at the center of the universe. 他认为太阳才是宇宙的中心。
  This radically 1 new idea was hard for a lot of people to accept. 这个十分激进的新思想让大多数人难以接受。
  After all, Aristotle's ideas made sense with what they could see, and they were pretty flattering to humans. 毕竟亚里士多德的理论在人们眼中才符合事实,它对人类更有吸引力。
  But a series of subsequent discoveries made the sun-centric model hard to ignore. 但是随后的一系列发现让日心说无法被忽视。
  First, Johannes Kepler pointed 2 out that orbits aren't perfect circles or spheres. 首先,约翰尼斯·开普勒指出行星运动的轨道并不是完美的圆弧或者球型。
  Then, Galileo's telescope caught Jupiter's moons orbiting around Jupiter, totally ignoring Earth. 其次,伽利略的望远镜发现木星也有围绕自己的卫星,完全与地球无关。
  And then, Newton proposed the theory of universal gravitation, 接着牛顿提出了万有引力定律,
  demonstrating that all objects are pulling on each other. 说明所有的物体都互相吸引。
  Eventually, we had to let go of the idea that we were at the center of the universe. 最终, 我们不得不放弃地球是宇宙中心的想法。

ad.根本地,本质地
  • I think we may have to rethink our policies fairly radically. 我认为我们可能要对我们的政策进行根本的反思。
  • The health service must be radically reformed. 公共医疗卫生服务必须进行彻底改革。
adj.尖的,直截了当的
  • He gave me a very sharp pointed pencil.他给我一支削得非常尖的铅笔。
  • She wished to show Mrs.John Dashwood by this pointed invitation to her brother.她想通过对达茨伍德夫人提出直截了当的邀请向她的哥哥表示出来。
标签: TED演讲
学英语单词
abortiva variola
allegan
amblyeleotris periophthalma
animal husbandry
application for drawback
autoselecting
basic atomic group
be a scorn to
bear-trap
beechy
bepraising
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Brumado
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catch lever
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copper stripping electrolysis
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deconjugations
dennisonite (davisonite)
Derrick City
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diplococcus of Morax-Axenfeld
double-current method
El Bejuco
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equity-warrants
finds oneself
flash of wit
force due of viscosity
gate current degradation
give tongue
glooming
half yearly account
hexaferrite
huskershredder
inertinites
inomyxoma fibromyxoma
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lay of rope
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limit position of a link
lining method
mafes
malonyl thiourea
megalithic age
methidium
mixed sleep apnea
modem connection
mushroom cloud
notacaphylla chinensiae
occipitoiliac
older sisters
one bath two stage process
overpraises
pay honor to
pentamethazene
Phospatidylcholine
play close to the vest
premonitory pains
primary productivity
proxy attribute
psychic deafness
quarter wave length
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reheating cycle
rim blight
Sabbathesque
sagueiro
sand shell moulding
sand stargazer
saracenis
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simultaneous prosperity
softball
spread oneself
Stellaria irrigua
stellasteropsis colubrinus
strategic communication
student experience
succinanilide
sunnyside up
take-up bearing
terminal wire
turbo fan
twin engined
unpathetic
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