中文:爱迪生和他的助手们,用白金试了好几次,可这种熔点较高的白金,虽然使电灯发光时间延长了好多,但不时要自动熄掉再自动发光,仍然很不理想。
爱迪生并不气馁,继续着自己的试验工作。他先后试用了钡、钛、锢等稀有金属,效果都不很理想。
接下来,他与助手们将这1600种耐热材料分门别类地开始试验,还是采用白金最为合适。由于改进了抽气方法,使玻璃泡内真空。灯的寿命已延长到2个小时。但这种由白金为材料做成的灯,价格太昂贵了,谁愿意化这么多钱去买只能用2个小时的电灯呢?
爱迪生看到这用棉纱织成的围脖,爱迪生脑海突然萌发了一个念头:
对!棉纱的纤维比木材的好,能不能用这种材料?
他急忙从围巾上扯下一根棉纱,小心地把这根炭丝装进玻璃泡里,效果果然很好。
爱迪生非常高兴,制造了很多棉纱做成的炭丝,进行多次试验。灯炮的寿命延长13个小时,后来又达到45小时。
“我希望它能亮1000个小时,最好是16000个小时!”爱迪生说道。
最后,爱迪生终于选择了竹子。他先取出一片竹子,装进玻璃泡,通上电后,这种竹丝灯泡竟连续不断地亮了1200个小时!
他终于做出了自己满意的电灯。
英文翻译: Edison and his assistants, with platinum tried several times, but the high melting point of platinum, although the lamp lighting time a lot, but from time to time to turn off the light automatically automatically again, still not very ideal. Edison was not discouraged, to continue his work with test. He has tested a barium, titanium, indium and other rare metals, the effect is not very ideal. Next, he and aides will be arranged the 1600 heat resistant materials to test, or the use of platinum is most appropriate. Because of the improvement of pumping method, so that the glass bulb in vacuum. The service life of the lamp has been extended to 2 hours. But the platinum materials for the lamp, the price is too expensive, and who are willing to so much money to buy only 2 hours of light? Edison saw the scarf which made of cotton, Edison mind suddenly had an idea: to! Cotton fiber than wood, can use this material can not? He hurried off to a cotton yarn from the scarf, carefully put the carbon filament into a bubble, the effect was very good. Edison very happy, make carbon silk cotton made, conducted a number of tests. To extend the lamp life 13 hours, then 45 hours. "I hope it will light for 1000 hours, preferably 16000 hours!" Edison said. Finally, Edison finally chose bamboo. He took out a piece of bamboo, into the glass bulb, pass after power on, the bamboo filament lamp was continuously lit 1200 hours! He finally made their satisfaction with the lamp
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下面是关于爱恩斯坦的故事:Albert Einstein
Albert Einstein was considered the greatest scientist of the 20th century and one of the greatest of all time. His discoveries and theories have greatly influenced science in many fields.
Einstein was born in 1879 in Ulm, a city in Germany. As a boy, he was slow to learn to talk, but later in his childhood he showed great curiosity about nature and ability to solve difficult mathematical problems. After he left school, he went to Switzerland, where he graduated from the university with a degree in mathematics.
In 1905, Einstein began to publish a series of papers which shook the whole scientific and intellectual world, and for the theories he established in the papers he won the Nobel Prize for Physics in 1921.
Because Einstein was Jewish, when Hitler took over Germany in 1933, he had to leave the country and finally settled in the United States. There he continued his study on the structure of the universe until his death in 1955.
Among the several important discoveries Einstein made in his life, the greatest is the creation of his famous Theory of Relativity。阿尔伯特·爱因斯坦阿尔伯特·爱因斯坦被认为是最伟大的科学家之一,20th世纪最伟大的时间。他的发现极大地影响了科学和理论在许多领域。爱因斯坦于1879年出生在德国的乌尔鉧城,一个城市。作为一个男孩,他慢慢地学会讲话,但后来在童年时代他表现得非常好奇地自然和能力解决棘手的数学问题。他从学校毕业后,他去瑞士,在那里他大学毕业,获得学士学位的数学。
1905年,爱因斯坦开始发表的一系列文件震动整个科学知识的世界,和他建立的理论在报纸上他获得诺贝尔物理学奖在1921年。
因为爱因斯坦是犹太教徒,当希特勒接管德国在1933年,他不得不离开这个国家并且最终定居在美国。他继续他的研究宇宙的结构直到1955年去世为止。
在几个重要的发现爱因斯坦交了他生命中最伟大的是他创立了著名的相对论。