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英国著名物理学家史蒂芬#8226;霍金日前在接受美国著名网站BigThink访谈时,再曝惊人言论,称地球将在200年内毁灭,而人类只有移民外星球才能继续存活。他表示,在未来200年内,人类将面临巨大的危险,而且危机次数可能超过以往任何时候;人类必须离开地球移居到外太空,否则会从地球上消失。对此,密歇根大学天文物理学家表示,距离地球最近的星体在4.2光年之外,用现在的飞行速度大概需要5万年才能到达,如果用光速飞行的话则需要4.2年。看来,移居另外一个星球将是人类面临的一项重大挑战。Humans: It’s time to abandon Earth or face extinction.It could be the plot of a summer blockbuster, but this prediction isn’t science fiction. It’s a glimpse of the future, according to famed British scientist Stephen Hawking."I see great dangers for the human race," he said in an interview with global forum Big Think. "There have been a number of times in the past when its survival has been a question of touch and go."Hawking, an award-winning physicist, says humans must evacuate our home planet within the next two centuries and expand into space to survive."I believe that the long-term future of the human race must be in space," he said. "It will be difficult enough to avoid disaster on planet Earth in the next hundred years, let alone the next thousand, or million."Hawking, who was awarded the Presidential Medal of Freedom last year, has recently voiced many concerns about the future of life on Earth.In April, he spoke pragmatically about his fear of aliens in an interview for the Discovery Channel."If aliens visit us, the outcome would be much as when Columbus landed in America, which didn't turn out well for the Native Americans," he said. "Such advanced aliens would perhaps become nomads, looking to conquer and colonize whatever planets they can reach."But Hawking says he is still hopeful for the future of humanity."I'm an optimist," he told Big Think. "We have made remarkable progress in the last hundred years. But if we want to continue beyond the next hundred years, our future is in space."Getting to another planet will prove a challenge, not to mention colonizing it for humanity. University of Michigan astrophysicist Katherine Freese told Big Think that "the nearest star [to Earth] is Proxima Centauri which is 4.2 light years away. That means, if you were traveling at the speed of light the whole time, it would take 4.2 years to get there" -- or about 50,000 years using current rocket science. /201008/111303

The share of UK homes being purchased entirely with cash has risen to a record high of more than a third, underscoring the two-speed housing recovery and casting doubt on fears of a new debt-fuelled bubble. 英国全款买房的比例已达到超过三分之一的创纪录水平,凸显房产市场的双速复苏,并给有关债务催生新泡沫的担忧带来问号。 The revelations, which come in the week that UK house prices surpassed their 2008 peak, complicates the picture for policy makers debating whether a rebound poses a systemic risk to the economy. 本周有报道称,英国房价已超过2008年峰值。在此之际,上述披露令政策制定者面对更复杂的局面,他们正就房价反弹是否对英国经济构成系统性风险展开辩论。 A comprehensive study of residential property transactions, compiled for the Financial Times by Savills and Hometrack, shows that #163;83bn of houses were bought without debt in the last year, out of a total #163;237bn of deals. 英国地产经纪公司第一太平戴维斯(Savills)和房地产研究机构Hometrack为英国《金融时报》编纂的住房物业交易研究显示,过去一年里全款购买的住房总额达830亿英镑,而交易总额为2370亿英镑。 That means cash-only purchases account for 35 per cent of sales by value compared with between 10 per cent and 15 per cent in the years before the financial crisis, underscoring the declining role of mortgage finance. 这意味着全款购买占销售总值的35%,金融危机之前的几年里,该比例为10%至15%,凸显抵押贷款融资所扮演的角色下降。 The total amount of equity-funded expenditure, including mortgage deposits and cash, now stands at 62 per cent, far higher than the historical average of below 50 per cent. 股权出的总额(包括抵押贷款首付及现金)目前达62%,远高于历史平均(不到50%)。 The trend is being driven by London, where #163;9bn of cash has been spent on property in the past three months alone, much of it by foreign buyers from Singapore, China and Hong Kong. British investors are also attracted by the relatively high rental yields compared with ultra-slim savings rates at banks. 这一趋势以伦敦为首,仅在过去三个月里,投入伦敦房地产的现金出就达90亿英镑,其中有很大一部分来自国外买家,包括新加坡、中国内地和香港。面对超低储蓄利率的英国投资者,也被相对较高的房租收益率吸引。 /201309/258223


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