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(单词翻译:双击或拖选)
A victim of an incurable1 disease, Stephen Hawking2 is almost completely paralysed, confined to a wheelchair, and unable to speak. Yet, he has overcome every obstacle and achieved far more than most able-bodied people ever dream of accomplishing and become one of the greatest physicists4 of our time.
Roaming the Cosmos5 by Le0on Jaroff
Darkness has fallen on Cambridge, England, and on a damp and chilly6 evening king's Parade is filled with students and faculty7. Then, down the crowded thoroughfare comes the University of Cambridge's most distinctive8 vehicle, bearing its most distinguished9 citizen. In the motorized wheelchair, boyish face dimly illuminated10 by a glowing computer screen attached to the left armrest, is Stephen William Hawking, 46, one of the world's greatest theoretical physicists. As he skillfully maneuvers11 through the crowd, motorists slow down, some honking12 their horns in greeting. People wave and shout hello.
A huge smile lights up Hawking's bespectacled face, but he cannot wave or shout back. Since his early 20s, he has suffered from amyotrophic lateral13 sclerosis (ALS), a progressive deterioration14 of the central nervous system that usually causes death within three or four years. Hawking's illness has advanced more slowly, and now seems almost to have stabilized15. Still, it has robbed him of virtually all movement. He has no control over most of his muscles, cannot dress or eat by himself and has lost his voice. Now he "speaks" only by using the slight voluntary movement left in his hands and fingers to operate his wheelchair's built-in computer and voice synthesizer.
While ALS has made Hawking a virtual prisoner in his own body, it has left his courage and humor intact, his intellect free to roam. And roam it does, from the infinitesimal to the infinite, from the subatomic realm to the far reaches of the universe. In the course of these mental expeditions, Hawking has conceived startling new theories about black holes and the disorderly events that immediately followed the Big Bang from which the universe sprang. More recently, he has shaken both physicists and theologians by suggesting that the universe has no boundaries, was not created and will not be destroyed.
Most of Stephen Hawking's innovative16 thinking occurs at Cambridge, where he is Lucasian professor of mathematics, a seat once occupied by Isaac Newton. There, in the Department of Mathematics and Theoretical Physics, he benevolently17 reigns18 over the relativity group, 15 overachieving graduate students from nine countries. On his office door is a small plaque19 irreverently reading QUIET, PLEASE. THE BOSS IS ASLEEP.
Hardly. From midmorning until he departs for dinner around 7 p. m., Hawking follows a routine that would tax the most able-bodied, working in his book-lined office, amid photographs of his wife Jane and their three children. When he rolled into the department's common room one morning last month, his students were talking shop around low tables. Maneuvering20 to one of the tables, Hawking clicked his control switch, evoking21 tiny beeps from his computer and selecting words from lists displayed on his screen. These words, assembled in sequence at the bottom of the screen, finally issued from the voice synthesizer: "Good morning. Can I have coffee?" Then, for the benefit of a visitor: "I am sorry about my American accent." (The synthesizer is produced by a California company.)
When the conversation shifted to creativity and how mathematicians23 seem to reach a creative peak in their early 20s, Hawking's computer beeped. "I'm over the hill," he said, to a chorus of laughter.
Hawking was born on Jan. 8, 1942-300 years to the day, he often notes, after the death of Galileo. As a small boy, he was slow to learn to read but liked to take things apart though he confesses that he was never very good at putting things back together. When he was twelve, he recalls humorously, "one of my friends bet another friend a bag of sweets that I would never come to anything. I don't know if this bet was ever settled and, if so, who won.
Fascinated by physics, Stephen concentrated in the subject at Oxford's University College, but did not distinguish himself. He partied, took a great interest in rowing and studied only an hour or so a day. Moving on to Cambridge for graduate work in relativity, he found the going rough, party because of some puzzling physical problems; he stumbled frequently and seemed to be getting clumsy.
Doctors soon gave him the bad news: he had ALS, it would only get worse, and there was no cure. Hawking was overwhelmed. Before long, he needed a cane24 to walk, was drinking heavily and ignoring his studies. "There didn't seem to be much point in completing my Ph. D.," he says.
Then Hawking's luck turned. The progress of the disease slowed, and Einsteinian space-time suddenly seemed less formidable. But what really made the difference, he says, "was that I got engaged to Jane," who was studying modern languages at Cambridge. "This gave me something to liver for." As he explains, "if we were to get married, I had to get a job. And to get a job, I had to finish my Ph. D. I started, working hard for the first time in my life. To my surprise, I found I liked it."
What particularly interested Stephen was singularities, strange beasts predicted by general relativity. Einstein's equations indicated that when a star several times larger than the sun exhausts its nuclear fuel and collapses25, its matter crushes together at its center with such force that it forms a singularity, an infinitely26 dense27 point with no dimensions and irresistible28 gravity. A voluminous region surrounding the singularity becomes a "black hole," from which — because of that immense gravity — nothing, not even light, can escape.
Scientists years ago found compelling evidence that black holes exist, but they were uncomfortable with singularities, because all scientific laws break down at these points. Most physicists believed that in the real universe the object at the heart of a black hole would be small (but not dimensionless) and extremely dense (but not infinitely so). Enter Hawking. While still a graduate student, he and Mathematician22 Roger Penrose developed new techniques proving mathematically that if general relativity is correct, singularities must exist. Hawking went on to demonstrate — again if general relativity is correct — that the entire universe must have sprung from a singularity. As he wrote in his 1966 Ph. D. thesis, "There is a singularity in our past."
Stephen later discerned several new characteristics of black holes and demonstrated that the amazing forces of the Big Bang would have created mini-black holes, each with a mass about that of a terrestrial mountain, but no larger than the subatomic proton. Then, applying the quantum theory (which accurately29 describes the random30, uncertain subatomic world) instead of general relativity (which, it turns out, falters31 in that tiny realm), Hawking was startled to find that the mini-black holes must emit particles and radiation. Even more remarkable32, the little holes would gradually evaporate and, 10 billion years or so after their creation, explode with the energy or millions of H-bombs.
Hawking has visited the U. S. 30 times, made seven trips to Moscow, taken a round-the-word journey, and piloted his wheelchair on the Great Wall of China. On the road, the activities occasionally deviate33 somewhat from physics. One night Stephen accompanied a group to a Chicago discotheque, where he joined in the festivities by wheeling onto the dance floor and spinning his chair in circles.
Recently, Hawking, who has no qualms34 about recanting his own work if he decides he was wrong, may have transcended35 his famous proof that singularities exist. With Physicist3 James Hartle. He has derived36 a quantum wave describing a self-contained universe that, like the earth's surface, has no edge or boundary. If that is the case, says Hawking, Einstein's general theory of relativity would have to be modified, and there would be no singularities. "The universe would not be created, not be destroyed; it would simply be," he concludes, adding challengingly, "What place, then, for a Creator?"
1 incurable | |
adj.不能医治的,不能矫正的,无救的;n.不治的病人,无救的人 | |
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2 hawking | |
利用鹰行猎 | |
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3 physicist | |
n.物理学家,研究物理学的人 | |
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4 physicists | |
物理学家( physicist的名词复数 ) | |
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5 cosmos | |
n.宇宙;秩序,和谐 | |
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6 chilly | |
adj.凉快的,寒冷的 | |
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7 faculty | |
n.才能;学院,系;(学院或系的)全体教学人员 | |
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8 distinctive | |
adj.特别的,有特色的,与众不同的 | |
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9 distinguished | |
adj.卓越的,杰出的,著名的 | |
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10 illuminated | |
adj.被照明的;受启迪的 | |
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11 maneuvers | |
n.策略,谋略,花招( maneuver的名词复数 ) | |
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12 honking | |
v.(使)发出雁叫似的声音,鸣(喇叭),按(喇叭)( honk的现在分词 ) | |
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13 lateral | |
adj.侧面的,旁边的 | |
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14 deterioration | |
n.退化;恶化;变坏 | |
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15 stabilized | |
v.(使)稳定, (使)稳固( stabilize的过去式和过去分词 ) | |
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16 innovative | |
adj.革新的,新颖的,富有革新精神的 | |
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17 benevolently | |
adv.仁慈地,行善地 | |
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18 reigns | |
n.君主的统治( reign的名词复数 );君主统治时期;任期;当政期 | |
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19 plaque | |
n.饰板,匾,(医)血小板 | |
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20 maneuvering | |
v.移动,用策略( maneuver的现在分词 );操纵 | |
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21 evoking | |
产生,引起,唤起( evoke的现在分词 ) | |
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22 mathematician | |
n.数学家 | |
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23 mathematicians | |
数学家( mathematician的名词复数 ) | |
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24 cane | |
n.手杖,细长的茎,藤条;v.以杖击,以藤编制的 | |
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25 collapses | |
折叠( collapse的第三人称单数 ); 倒塌; 崩溃; (尤指工作劳累后)坐下 | |
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26 infinitely | |
adv.无限地,无穷地 | |
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27 dense | |
a.密集的,稠密的,浓密的;密度大的 | |
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28 irresistible | |
adj.非常诱人的,无法拒绝的,无法抗拒的 | |
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29 accurately | |
adv.准确地,精确地 | |
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30 random | |
adj.随机的;任意的;n.偶然的(或随便的)行动 | |
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31 falters | |
(嗓音)颤抖( falter的第三人称单数 ); 支吾其词; 蹒跚; 摇晃 | |
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32 remarkable | |
adj.显著的,异常的,非凡的,值得注意的 | |
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33 deviate | |
v.(from)背离,偏离 | |
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34 qualms | |
n.不安;内疚 | |
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35 transcended | |
超出或超越(经验、信念、描写能力等)的范围( transcend的过去式和过去分词 ); 优于或胜过… | |
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36 derived | |
vi.起源;由来;衍生;导出v.得到( derive的过去式和过去分词 );(从…中)得到获得;源于;(从…中)提取 | |
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