In 1895, Wilhelm Roentgen accidentally discovered that a cathode-ray tube could make a sheet of paper coated with barium platinocyanide glow, even when the tube and the paper were in separate rooms.
1895年,威廉·伦琴偶然发现阴极射线管能使涂有一层氰亚铂酸薄
纸发
,甚至当阴极射线管和
纸分别放在不同
房间时也能发
。