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《愛(ài)迪生的故事》愛(ài)迪生發(fā)明電燈的故事 最溫馨的60個(gè)睡前故事(2)

出處：媽媽育兒網(wǎng)日期：2018-05-08 18:44:35編輯：Rainbow

1879年10月，在一次偶然的機(jī)會(huì)下，愛(ài)迪生的老朋友麥肯基來(lái)看望他。愛(ài)迪生望著麥肯基說(shuō)話時(shí)一晃一晃的長(zhǎng)胡須，突然眼睛一亮，說(shuō)：“胡子，先生，我要用您的胡子。”麥肯基剪下一綹交給愛(ài)迪生。

愛(ài)迪生滿懷信心地挑選了幾根粗胡子，進(jìn)行炭化處理，然后裝在燈泡里。可令人遺憾的是，試驗(yàn)結(jié)果也不理想。“那就用我的頭發(fā)試試看，沒(méi)準(zhǔn)還行。”麥肯基說(shuō)。

這句話深深的觸動(dòng)了愛(ài)迪生，但他明白，頭發(fā)與胡須性質(zhì)一樣，于是沒(méi)有采納老人的意見(jiàn)。愛(ài)迪生走身，準(zhǔn)備為這位慈祥的老人送行。他下意思地幫老人拉平身上穿的棉線外套。

突然，他又喊道：“棉線，為什么不試棉線呢?”麥肯基毫不猶豫地解開(kāi)外套，撕下一片棉線織成的布，遞給愛(ài)迪生。

愛(ài)迪生把棉線放在在U形密閉坩堝里，用高溫處理。愛(ài)迪生用鑷子夾住炭化棉線。準(zhǔn)備將它裝在燈泡內(nèi)。可由于炭化棉線又細(xì)又脆，加上愛(ài)迪生過(guò)于緊張，拿鑷子的手微微顫抖，因此棉線被夾斷了。

最后，費(fèi)了九牛二虎之力，愛(ài)迪生才把一根炭化棉線裝進(jìn)了燈泡。此時(shí)，夜幕正在降臨，愛(ài)迪生的助手把燈泡里的空氣抽走，并將燈泡安在燈座上，一切工作就緒，大家靜靜地等待著結(jié)果。

接通電源，燈泡發(fā)出金黃色的光輝，把整個(gè)實(shí)驗(yàn)室照得通亮。13個(gè)月的艱苦奮斗，試用了6000多種材料，試驗(yàn)了7000多次，終于有了突破性的進(jìn)展。

但是，這燈究竟會(huì)亮多久呢？1小時(shí)，2小時(shí)，3小時(shí)……時(shí)間一分一秒的過(guò)去，這盞電燈足足亮了45小時(shí)，燈絲才被燒斷。

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