In 1880 Edison discovered the right material for his lightbulb's filament: carbonized bamboo fiber, which burned longer than any other material yet tested.

1880 年，爱迪生发现了制作灯泡灯丝的合适材料：碳化竹纤维，这种纤维燃烧的时间比目前测试过的任何其他材料都要长。