罗伯特·威廉·伍德是美国著名的物理学家。他平时在一家巴黎小饭馆吃饭。有一天,他吃了一盘烤鸡,吃饱之后,还从上衣口袋里掏出一小包粉末,撒在盘中剩下的骨头上。第二天,第一道菜上来之后,伍德把一盏小型酒精灯放在桌子,朝火上滴了几滴菜汤,火焰变成了红色。伍德喊道:“果然不出我所料!”他向一起进餐的人解释说,昨天他把氯化锂撒在吃剩的鸡骨头上了,酒精灯发出的红色火焰,说明汤里面有氯化锂,证明今天的汤是用昨天吃剩的 Robert William Wood is a famous American physicist. He usually eats at a small Parisian restaurant. One day he had eaten a plate of roast chicken, and when he was full, he took a small packet of powder from the pocket of his shirt and sprinkled it on the rest of the plate. The next day, after the first dish came up, Wood placed a small alcohol lamp on the table, dropped a few drops of vegetable broth towards the fire, and the flame turned red. Wood shouted: “I could not get it!” He explained to a group of people who dined together that he spilled lithium on the leftover chicken bones yesterday and the red flame from the alcohol lamp showed that inside the soup There is lithium chloride, that today’s soup is leftover with yesterday