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爱迪生这位伟大的发明家,在其不平凡的一生中发明了许多东西,然而,立即得到人们认可和欢迎的,当属现在被我们广泛使用的灯泡。早在1821年,英国的科学家戴维和法拉第就发明了一种叫电弧灯的电灯。这种电灯用炭棒做灯丝,虽然能发出亮光,但是光线刺眼,耗电量大,寿命也不长,很不实用。“电弧灯不实用,我一定要发明一种灯光柔和的电灯,让千家万户都用得上。”爱迪生暗下决心。于是,他开始试验用做灯丝的材料:用传统的炭
Edison, the great inventor, invented many things during his extraordinary life. However, what is immediately recognized and welcomed by the people is the light bulb that is now widely used by us. As early as 1821, English scientists David and Faraday invented a lamp called an arc lamp. This lamp with a carbon rod filament, although the light can be issued, but the light glare, power consumption, life expectancy is not long, it is not practical. “The arc lamp is not practical, I must invent a soft light lamp, so that millions of households have access. ” Edison secretly determined. So, he began experimenting with the filament material: using traditional carbon