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
极射线管
使
有
层氰亚铂酸盐钡的薄相纸发光,甚至当
极射线管和相纸分别放在不同的房间

发光。

法使用电子显微镜或
有道理的。
有影响力且也
出现的


