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盐钡
薄
纸发光，
阴极射线管和纸分别放在不
间时也能发光。
观点；若发现问题，欢迎向我们指正。
