TED英语演讲：我们从何而来
歌曲来电铃声以TED2008的主题为出发点，史蒂芬·霍金教授提出了一些关于我们宇宙的重要问题──宇宙如何开始?生命何起源?宇宙中只有我们吗?与此同时，霍金教授也讨论了我们探究破解这些问题的途径。下面是小编为大家收集关于TED英语演讲：我们从何而来，欢迎借鉴参考。生命的不可思议
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演说题目：Questioning the univer
演说者：Stephen Hawking
There is nothing bigger or older than the univer. The questions I would like to talk about are: one, where did we come from? How did the univer come into being? Are we alone in the univer? Is there alien life out there? What is the future of the human race?
没什么比宇宙更广大更久远的了。你们的问题中我想聊一下的是：你我何从?宇宙何来?宇宙中就只有我们?有外星异生物么?人类的未来将会如何?
Up until the 1920s, everyone thought the univer was esntially static and unchanging in
time. Then it was discovered that the univer was expanding. Distant galaxies were moving away from us. This meant they must have been clor together in the past. If we extrapolate back, we find we must have all been on top of each other about 15 billion years ago. This was the Big Bang, the beginning of the univer.
上世纪20年代之前，所有人都以为宇宙基本上是处于稳态，流金岁月，持恒不变。之后我们发现原来宇宙正在膨胀中。辽远星系一直飞离我们，这意味着它们必定曾相靠近。我们若往后推算，就会发现我们必都曾於约150亿年前，互相堆叠在一起。正是这 "霹雳大爆炸" ——宇宙之起始。
But was there anything before the Big Bang? If not, what created the univer? Why did the univer emerge from the Big Bang the way it did? We ud to think that the theory of the univer could be divided into two parts. First, there were the laws like Maxwell's equations and general relativity that determined the evolution of the univer, given its state over all of space at one time. And cond, there was no question of the initial state of the univer.情谊
然而大爆炸前可有什么吗?若是没有，又是什么创造宇宙呢?宇宙缘何要从大霹雳中冒出呢?过往我们都认为宇宙论可分成两部分，首先，是定律。像“麦克斯韦方程组”'和 “广义相对论”以其于同一刻设定整个时空之状态，而决定了宇宙之演化进程。次之，是对宇宙雏形的疑问。
We have made good progress on the first part, and now have the knowledge of the laws of evolution in all but the most extreme conditions. But until recently, we have had little idea about the initial conditions for the univer. However, this division into laws of evolution and initial conditions depends on time and space being parate and distinct.
抗洪战士
第一部分我们取得良好进展，除了“至极端境况”'以外。现在已对演化规律于所有境况下之进程有所掌握。可直至最近，我们仍对宇宙初生当时之周围条件不甚了了。然而，这演化律及初始条件之界分，乃囿于"时 空分明"之概念内。
豌豆苗怎么炒Under extreme conditions, general relativity and quantum theoryallow time to behave like another dimension of space. This removes the distinction between time and space, and means the laws of evolution can also determine the initial state. The univer can sponta
neously create itlf out of nothing.垃圾英语单词
山药蛋黄粥而於极端条件下，广义相对论及量子论容许“时间”如同“空间”的另一维度般运作。这就将“时.空”之间区别移除了，即是说演化律 亦可决定初始状态。宇宙可以由无变有自我创生!
Moreover, we can calculate a probability that the univer was created in different states. The predictions are in excellent agreement with obrvations by the WMAP satellite of the cosmic microwave background, which is an imprint of the very early univer. We think we have solved the mystery of creation. Maybe we should patent the univer and charge everyone royalties for their existence.
我们甚至可以计算出宇宙在不同情况下诞生的可能性。这些推论与WMAP卫星所观测到的宇宙微波背景辐射(即大爆炸之痕迹)相当一致。我们相信已勘破了创造奥秘或许我们应将“宇宙”给注册，然后向每个生存于世的人收“生活费”。
I now turn to the cond big question: are we alone, or is there other life in the univer? We believe that life aro spontaneously on the Earth, so it must be possible for life to appear on other suitable planets, of which there em to be a large number in the galaxy.
现在我转到第二个大问题去，宇宙中就只有我们，还是另有其它生物?我们相信生命从地球自我衍生，故此生命确有可能出现於其它合适星球——星河中看来可有不少呢。
But we don't know how life first appeared. We have two pieces of obrvational evidence on the probability of life appearing. The first is that we have fossils of algae from 3.5 billion years ago. The Earth was formed 4.6 billion years ago and was probably too hot for about the first half billion years. So life appeared on Earth within half a billion years of it being possible, which is short compared to the 10-billion-year lifetime of a planet of Earth type. This suggests that the probability of life appearing is reasonably high. If it was very low, one would have expected it to take most of the ten billion years available.
但我们仍未搅通生命是如何生成：对於生命诞生的可能契机，我们有两项观测得来的佐证。首先我们有来自35亿年前的海藻化石。地球于46亿年前形成，头约5亿年相信仍太热了。故此生命于其变得可能后的5亿年间方出现，这相对于像地球之类百亿年期的星体，只算是一段短时间。这意味着生命出现的概率是颇高的。若是低的话，就可预期要花尽百亿年的绝大部分才会出现。
On the other hand, we don't em to have been visited by aliens. I am discounting the reports of UFOs.Why would they appear only to cranks and weirdos? If there is a government conspiracy to suppress the reports and keep for itlf the scientific knowledge the aliens bring, it ems to have been a singularly ineffective policy so far. Furthermore, despite an extensive arch by the SETI project, we haven't heard any alien television quiz shows. This probably indicates that there are no alien civilizations at our stage of development within a radius of a few hundred light years. Issuing an insurance policy against abduction by aliens ems a pretty safe bet.
