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时间:2019年10月21日 14:22:38

电路的设计和建造曾经非常昂贵且繁琐,直到 Leah Buechley 和她的研究小组在麻省理工学院发明了一种用纸笔手绘出电路图的方法。 在2011年 TEDYouth 演讲中,Buechley 向我们展示了她们富有魔力的设计,比如画出一台可以弹奏的钢琴。201406/302753

An example of that strategy had its finest hour当全球的未来遭到威胁时when the future of the world was in the balance.这种方法大放异In a quiet corner of the Met Office library hangs a map,在英国气象局图书馆的僻静角落挂着一张地图probably the most famous weather map in the world.它可能是全世界最著名的一张气象图Its the forecast for D-Day.它是诺曼底登陆的天气预报It played a critical role对于二战的结局in the outcome of the Second World War.它发挥了至关重要的作用The weather forecast might well have won the war.可能是天气预报赢得了战争They were trying to predict, within a window of a few days,他们尝试预测在几天里with the right amount of moon, the right tides,是否有合适的月相 合适的潮汐as to whether the weather would be flat enough for the landings.以及合适的天气用于登陆The forecast was for this ridge of high pressure预测结果是这道高压脊to move in across the western part of the Channel.将从海峡西部移动过来As you can see, it hadnt got quite as far in as was expected.能看到 它没有预计中走的那么远So conditions werent perfect,所以登陆条件并不是绝佳的but they knew that if they didnt go at the beginning of June,但是他们知道如果六月初不出发的话theyd have to wait another month.就必须再等一个月201411/341929

Theres a compelling showbiz mythology of the modern big city-the energy and the abundance, the proximity to culture and power, the streets that just might be paved with gold. Weve seen it and weve loved it, on stage and on screen. But we all know that in reality big cities are noisy, potentially violent and alarmingly anonymous. We sometimes just cant cope with the sheer mass of people.现代大城市简直是创造了一种嚎头十足的圈神话—能量充沛、物欲横流,文化与权力高度集中,仿佛街道都可以是黄金铺成的。舞台上、屏幕上那一切的一切,我们对其“所见即所爱”。然而我们也深知,在现实中,大城市也充斥着嘈杂、潜在暴力和惊人匿名性。有时,我们简直就是无法应付这样庞大、高度集中的人群。Apparently, if you look at how many numbers were likely to store in our mobile phone, or how many names were likely to list on a social networking site, its very rare even for city dwellers to exceed a couple of hundred.显而易见的,假如你看一下通常我们手机上可能储存的电话号码,或者我们在社交网站上添加的好友名单,就会发现经常一个城市居民的社交圈人群很少会有超过几百。Social anthropologists delightedly point out that this is the size of the social group wed have had to handle in a large Stone Age village. According to them, were all still trying to cope with modern city life with a Stone Age social brain.于是乎,社会学家得意洋洋地指出,早在石器时代的大村落里,几百这个数字我们恰好可以应付得来,这就是当时一个社会群体的合理大小。So how do you lead and control a city or a state where most people dont know each other, and you can only personally persuade a very small percentage of the inhabitants? Its the central theme of this weeks programmes, and its been the key political question for over five thousand years, since the growth of the worlds first cities and states.那么,你应该如何领导和控制一个城市与国家呢?绝大多数人都不认识彼比,你自己也只能亲身说比例非常小的居民。这是我们本周节日的中心主题;而且在超过五千年的人类历史上,自从世界上第一座城市、第一个国家的出现,这也是一个关键的政治问题。These grew up in the worlds great fertile river valleys, the Euphrates, the Tigris and the Indus, but I want to start with the most famous river of them all, the Nile.最早期的城市与国家崛起于世界上伟大的肥沃河谷里,幼发拉底河、底格里斯河、印度河等等,然而我想从这所有河流中最著名的尼罗河开始。;Theres no doubt that warfare and the coercive power of the king is very much at the heart of the regime from an early period.; (Toby Wilkinson)“毫无疑问,国王的战争力与威摄力自古以来就是制权的心脏要素。”托比#8226;威尔金森说道。201405/299892

Another master of dead ball, Del Piero.又一位点球专家,德尔·皮耶罗。重点词汇: master 专家例句:She was a master of the English language.她是英文高手。 视频介绍:另一位点球专家德尔·皮耶罗被安排在第三个出场。皮耶罗是点球高手,特别是其主罚点球时助跑的节奏控制得很好。


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