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.
特朗普表示将取消开支上限|增加军费
综艺节目掀起的网络热潮
另类女神:温婉的“邻家女孩”
日常英语对话:去北京的香山旅游
离婚返巢族:离婚却不分居
学生们做过的让教师感动的事
男生摆999个柚子表白被拒后,柚子瞬间被抢光
为啥分手后,妹子会比汉子更难受呢?
回味里约奥运会的精彩瞬间
十二个月在英语中的故事
吃巧克力真的会影响健康吗?
切记,不要和好友一起创业
什么是“脸基尼”?脸基尼正式走红中国
日常英语对话:明天一起去购物
如何再“放弃”前再为自己打一罐鸡血?
肯德基炸鸡配方遭到泄露
用Migrant/expat/refugee来描述离开家乡的人们
什么是人际交往中的“自我实现预言”
怎样用英文表达你想要抓狂的感觉
沃尔玛简化超市运作|后台裁员7000人
非女士专属,男人也有“更年期”
英语民间故事:The Rabbit Steals the Elephants Dinner
音乐无国界,盘点那些红遍中国的新加坡歌手
英语民间故事:Fenist the Bright Falcon
中国游客以色列挨宰:一顿饭3万元你吃吗?
从问题少女到连续创业家
北大成为中国国际影响力最大的学校
日常英语对话:周六的早晨
另类“产业链”,班级里的“抄作业链”
不是女汉子,她们是假小子
| 不限 |
| 英语教案 |
| 英语课件 |
| 英语试题 |
| 不限 |
| 不限 |
| 上册 |
| 下册 |
| 不限 |