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.
2017届高考英语大一轮复习课件:必修4 unit3 A taste of English humour(新人教版)
2017届高考英语一轮复习写作技能培优课件:第1讲 写好五种基本句型,简单句变得更简单(牛津译林版)
2017届高考英语一轮复习课件:选修8 unit2 Cloning(新人教版)
2017届高考英语一轮复习写作技能培优课件:第5讲 完美衔接过渡,编织流畅作文(牛津译林版)
2017届高考英语一轮复习写作技能培优课件:第7讲 精研提纲材料,轻松驾驭提纲作文(牛津译林版)
2017届高考英语大一轮复习课件:必修2 unit5 Music(新人教版)
2017届高考英语大一轮复习课件:必修1 unit4 Earthquakes(新人教版)
2017届高考英语大一轮复习课件:必修1 unit2 English around the world(新人教版)
2017届高考英语一轮复习课件:选修7 unit3 Under the sea(新人教版)
2017届高考英语一轮复习写作技能培优课件:第10讲 发挥合理想象,灵活阐释开放作文(牛津译林版)
2017届高考英语大一轮复习课件:选修8 unit4 Pygmalion(新人教版)
2017届高考英语大一轮复习课件:必修1 unit3 Travel journal(新人教版)
2017届高考英语大一轮复习课件:必修3 unit5 Canada—“The True North”(新人教版)
2017届高考英语一轮复习语法专项突破课件:第4讲 动词和动词短语(牛津译林版)
2017届高考英语大一轮复习课件:必修4 unit1 Women of achievement(新人教版)
2017届高考英语大一轮复习课件:必修3 unit2 Healthy eating(新人教版)
2017届高考英语一轮复习语法专项突破课件:第1讲 名词和冠词(牛津译林版)
2017届高考英语一轮复习课件:选修8 unit1 A land of diversity(新人教版)
2017届高考英语大一轮复习课件:必修3 unit1 Festivals around the world(新人教版)
2017届高考英语一轮复习语法专项突破课件:第8讲 定语从句(牛津译林版)
2017届高考英语一轮复习写作技能培优课件:第6讲 打造写作亮点,提升写作档次(牛津译林版)
2017届高考英语一轮复习写作技能培优课件:第3讲 熟悉三大复合句式,复合句变得更实用(牛津译林版)
2017届高考英语大一轮复习课件:必修3 unit4 Astronomy the science of the stars(新人教版)
2017届高考英语大一轮复习课件:必修1 unit1 Friendship(新人教版)
2017届高考英语大一轮复习课件:必修2 unit3 Computers(新人教版)
Kept his wits about?
2017届高考英语一轮复习写作技能培优课件:第2讲 掌握四种并列关系,并列句变得更容易(牛津译林版)
2017届高考英语大一轮复习课件:选修8 unit5 Meeting your ancestors(新人教版)
2017届高考英语大一轮复习课件:必修3 unit3 The Million Pound Bank Note(新人教版)
王毅:中美不会走入“修昔底德陷阱”
| 不限 |
| 英语教案 |
| 英语课件 |
| 英语试题 |
| 不限 |
| 不限 |
| 上册 |
| 下册 |
| 不限 |