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赣县人民医院生孩子好吗信丰县医院好TED演讲集 那些匪夷所思的新奇思想 201601/418370信丰县人民医院体检收费标准 TED演讲集 那些匪夷所思的新奇思想201510/402541This is our planet, the Earth.这是我们的星球,地球Its unique in the solar system,太阳系中独一无二的perhaps even in the universe.甚至可能是宇宙中My name is Iain Stewart我是斯图尔特and I want to show you how our planet works.我将向你展示我们的地球是怎么运作的I am exploring ice.我将要探索冰川Ice may be nothing more than frozen water冰川无非就是冰冻的水but it holds extraordinary power.但是它有特别的力量Since human beings have been on the planet自从地球上有了人类nothing has done more than ice to shape our world.没有事物比冰川在塑造地球方面做的更多It has carved the landscape,它雕刻了景观unleashed terrible catastrophes释放可怕的灾祸and ice has helped drive the climate of the whole planet.冰川还影响整个星球的气候Its even changed the course of human evolution,它甚至改变人类进化的进程yet it may also threaten our future.它当然也会威胁我们的未来Only now are we beginning to understand the power of this remarkable substance.现在让我们开始了解这种非凡力量的实质Welcome to the world of ice.欢迎来到冰封世界201510/401670赣州定南妇幼保健院评价

赣州盘古山钨矿职工医院包皮手术怎么样栏目简介:;Shanghai Live; focuses on big events in the city and major issues around the world, and presents them in a practical and audience-friendly manner to meet the ever-evolving needs of Shanghais English-speaking viewers,both local and expatriate.《直播上海英语电台》集中报道城市大事件以及全球热点话题,并以观众喜闻乐见的方式呈现给大家,从而满足上海本地以及上海海外人士的英语需求。201505/375504赣州仁济医院做输卵管通液多少钱 An envoy of the Persian emperor Xerxes波斯的使者 国王薛西斯一世Offers the people of Athens a chance给了雅典人一个机会To surrender and avoid bloodshed.以其自由为代价The cost, their freedom.换取投降 避免流血事件Male citizens of Athens gather on a rocky hill called the Pnyx.雅典的男性公民聚集在普尼克斯山上Among them: Sophanes.他们中有一位名叫梭帕涅斯Brave, outspoken,他英勇无畏 直言不讳An ordinary citizen who will become a military legend.从一位普通公民变成了一位军事传奇Citizens of Athens are armed with iron weapons.雅典公民以铁制武器武装自己They have a duty to defend themselves and their city.他们的职责是保护民众保卫城邦The ability to express yourself freely自由表达自我的能力is so uniquely tied与自由捍卫自我的能力to the ability to defend yourself freely.是如此契合相依 紧密相连The Athenians appreciate and value freedom.雅典人赞许且珍视自由Their ability to be self-expressed,他们能自由表达自我their ability to have a say in their government.使其得以在政府中有话语权And theyre willing to fight for that.他们愿意为之奋战Political decisions in Athens are made not by kings,雅典的政治决策并不是由君王所做出的But by its armed citizens, men like Sophanes.而是由像梭帕涅斯这样的武装公民做出的A new political system,这是一种新的政治制度A legacy still shaping civilization today:一项影响我们当代文明的遗产:Democracy.民主制度201509/398375大余县下垅钨矿职工医院有做缩阴吗

赣南医院堕胎But neither can be said to actually be true.但其实这两者都不能算是真的Because they,like all models,are just a models in our heads:因为它们就像所有模型一样 只是我们想象出来的The best fit of reality we perceive.最符合我们所认知的现实世界In fact,physicist are forever creating ever more sophisticated models事实上 物理学家不断建立更精密复杂的模型And the truth of those models is impossible to establish.而我们无法实那些模型的真实性A good example of this came in the 1960s.1960年代出现了一个很好的例子Physicists devised a theory of really tiny bits of matter,called Quarks.当时物理学家建构了一套理论 有关一种极微小物质的 叫做 夸克These quarks were proposed to be the building blocks of the subatomic particle called:A proton.根据理论 夸克是一种亚原子粒子的组成单元 那种粒子就是质子The theory our model suggested that该理论或模型主张these quarks were held together by a force夸克被一种力量连结在一起that got stronger as you tried to separate them.当你越想分离夸克 力量则越大If the quarks were bound by tiny rubber bands.仿佛夸克被小小的橡皮筋绑在一起This model also implied that there is no way one can ever see a single isolated quark.这个模型同时指出 人绝对无法看到单一孤立的夸克At first,some people were skeptical.起初有些人抱持怀疑的态度If something by its very definition can never be seen,若根据事物本身的定义 我们无法观察到它Can it be said to exist?这样还能说它存在吗?Does it make sense to say that quarks are real or not?那么讨论夸克是真是假有意义吗?201602/427696 To begin with,he thought the dots must be very faint stars,起初 他以为这些小点一定是极微弱的恒星but then as he watched for a few nights,he saw that they moved.但接连观察了数夜后 他发现这些小点会移动And then a fourth dot appeared.然后从第4个小点出现Sometimes,one of them would vanish behind Jupiter and then reappear.有时 其中一点会消失在木星后 之后又再度出现He realized they had to be moons circling the vast planet.他意识到 这些一定是绕行那颗巨大行星的卫星Here was proof positive that at least some objects do not orbit the Earth.这是明确的据 至少有些物体不是绕着地球运行Inspired by this discovery, Galileo went on to prove在此发现的鼓舞下 伽利略继而明that the Earth must, in fact,orbit the Sun.地球其实是绕着太阳在运行Aristarchus had been right all along.阿里斯塔克自始就是对的Galileos discoveries triggered a revolution in thought伽利略的发现引发了思想革命that would ultimately loosen the grip of religion over science.终使宗教放松对科学的钳制But back in the 17th century,they got him in a lot of trouble with the church.但在17世纪那个年代 他因此而吃了教会不少苦头He narrowly avoided execution by recanting his so-called heresy他撤回所谓的;异端邪说; 才得以逃过被处决的命运and was confined to house arrest for the last nine years of his life.他一直都被软禁在家中 直至辞世前的9年光阴Legend has it that even as he confessed his sin, he muttered,;but it does move.;传说 他在认罪时仍喃喃低语 ;但它真的在动啊;Over the next 300 years,as more and more of the laws of nature were discovered,接下来的300年间 陆续发现更多自然法则science began to explain all kinds of things from lightning,earthquakes, and storms to what makes the stars shine.科学开始能解释各种事物 从雷电 地震和暴风雨 到恒星为何会发光201603/429822赣州瑞金人民医院引产多少钱赣州全南医院预约是不是真的




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