19世纪初,人们开始使用煤气灯(瓦斯灯),但是煤气靠管道供给,一但漏气或堵塞,非常容易出事,人们对于照明的改革,十分殷切。事实上,爱迪生为自己订定了一个不可能的任务:除了改良照明之外,还要爱迪生发明的电灯创造一套供电的系统。 于是他和梦罗园的伙伴们,不眠不休的做了1600多次耐热材料和600多种植物纤维的实验,才制造出第一个炭丝灯泡,可以一次燃烧45个钟头。后来他更在这基础上不断改良制造的方法,终于推出可以点燃1200小时的竹丝灯泡。 19世纪80年代中期,爱迪生的电灯事业获得了成功,这一成功比以往任何成就给他带来的声誉都大。在80年代中期以前,他很少有失误,中期以后,尽管他也取得了很大成就,但失败也是屡见不鲜的。爱迪生最不值得称赞的行为之一就是他批评交流电,说它有副作用,可能造成死亡与损伤,但他未加具体说明。所以有人说,像他这样一个自己搞出了许多发明创造的人竟然对别人的新发明大加攻击,这是很矛盾的事。他反对使用交流电而赞成直流电,因而在一场激烈而固执的论战中败北。在这方面,反映出了爱迪生成为名人之后渐渐滋生的顽固守旧的缺点。
In the early nineteenth century, people began to use gas (gaslight), but the gas pipeline supply by a leak or blockage, very easy to have an accident, people for illumination of reform, very ardent. In fact, Edison for himself set the mission impossible: in addition to improve lighting, but also of Thomas Edison electric light Create a set of power supply system. And he and the dream LuoYuan buddies, sleepless do 1600 repeatedly heat-resistant material and more than 600 plant fiber experiment, only produced the first carbon wire bulb, can a burning 45 hours. Later he more on this basis, the method of continuous improvement manufacture can ignite 12 hours finally came out with the ZhuSi bulbs. The 19th century the 1980s, Edison electric light career succeeded, this success than any previous achievements brought him reputation. In the 1980s, before he had little mistake, intermediate later, although he has made great achievements, but also common occurance of failure. Edisons most not commendable actions is one of his criticism alternating current, say it has side effects, likely cause of death and injury, but he did not add details. So somebody said, as he such a mess out many inventions that people about others new invention saurday attack, this is very contradictory things. He opposes the use of alternating current and direct current, so the approve a fierce debate and stubborn in failure. In this respect, reflects the Edison became a celebrity after the stubbornness of started to foster old-fashioned shortcomings.
2016届高三(牛津版)英语一轮复习语法专练知能闯关 第二讲 代词和介词
2016届高三(牛津版)英语一轮复习课后达标检测16 Unit 1《Laughter is good for you》
2016届高三(牛津版)英语一轮复习课后达标检测20 Unit 1《Living with technology》
2016届高三(牛津版)英语一轮复习课后达标检测10 Unit 1《Advertising》
2016届高三(牛津版)英语一轮复习讲义 语法精讲 第八讲 定语从句
2016届高三(牛津版)英语一轮复习语法专练知能闯关 第三讲 形容词和副词
2016届高三(牛津版)英语一轮复习讲义 语法精讲 第七讲 情态动词和虚拟语气
2016届高三(牛津版)英语一轮复习语法专练知能闯关 第四讲 动词和动词短语
2016届高三(牛津版)英语一轮复习讲义 写作 第十讲 发挥合理想象灵活阐释开放作文
2016届高三(牛津版)英语一轮复习讲义 语法精讲 第十讲 并列句和状语从句
2016届高三(牛津版)英语一轮复习课后达标检测12 Unit 3《Tomorrow’s world》
2016届高三(牛津版)英语一轮复习语法专练知能闯关 第一讲 名词和冠词
2016届高三(牛津版)英语一轮复习语法专练知能闯关 第十二讲 情景交际
2016届高三(牛津版)英语一轮复习讲义 语法精讲 第十二讲 情景交际
2016届高三(牛津版)英语一轮复习讲义 写作 第六讲 打造写作亮点提升写作档次
2016届高三(牛津版)英语一轮复习讲义 语法精讲 第一讲 名词和冠词
2016届高三(牛津版)英语一轮复习讲义 语法精讲 第三讲 形容词和副词
2016届高三(牛津版)英语一轮复习讲义 语法精讲 第六讲 非谓语动词
2016届高三(牛津版)英语一轮复习课后达标检测11 Unit 2《Sports events》
2016届高三(牛津版)英语一轮复习讲义 写作 第七讲 精研提纲材料轻松驾驭提纲作文
2016届高三(牛津版)英语一轮复习课后达标检测4 Unit 1《Tales of the unexplained》
2016届高三(牛津版)英语一轮复习讲义 语法精讲 第九讲 名词性从句
2016届高三(牛津版)英语一轮复习课后达标检测3 Unit 3《Looking goodfeeling good》
2016届高三(牛津版)英语一轮复习课后达标检测14 Unit 2《The environment》
2016届高三(牛津版)英语一轮复习讲义 语法精讲 第十一讲 特殊句式和主谓一致
2016届高三(牛津版)英语一轮复习写作强化训练(三)
2016届高三(牛津版)英语一轮复习课后达标检测24 Unit 1《The written word》
2016届高三(牛津版)英语一轮复习语法专练知能闯关 第五讲 时态和语态
2016届高三(牛津版)英语一轮复习讲义 写作 第三讲 熟悉三大复合句式复合句变得更实用
2016届高三(牛津版)英语一轮复习讲义 语法精讲 第二讲 代词和介词
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