As gaslight replaced candles over the course of the 18th century , the amount of artificial illumination produced in britain each year shot up more than 100-fold .
随着煤油灯在18世纪全面取代蜡烛作为照明，在英国，人工制作的灯具数量每年上升了100倍。
People serious realized the problem that whether it wasted time to sleep , just when gaslight replaced candle , electric light did for gas light , and nightmare became daylight , 24 hour inverse-class work made the production double .
