It was manufactured by hand not long after commercial light bulbs were first invented, And yet, it has been running for over a million hours, way longer than any light bulb today is meant to last.

它是在商用灯泡发明后不久手工制作的，然而它已经运行了100多万个小时，比现今任何灯泡的使用寿命都要长得多。