The famous French physicist Ampere, when studying and studying problems, was highly concentrated and absorbed, almost reaching the level of ecstasy. In order to concentrate on studying the problem and be afraid of being disturbed by others, Ampere posted a note at his door. In this way, people who come to see him will not knock on the door to disturb him after seeing the note. One day, he was thinking about a problem at home and was puzzled. Think about this problem while walking. It walked on the road, as if it suddenly remembered something, and then turned around and walked home. As he walked, he was still absorbed in thinking about the problem. When he returned to his door, he looked up and saw a note posted on the door saying, "Mr. Ampere is not at home." He said to himself for a long time, "Oh! If Mr. Ampere is not at home, I will go home! " Say that finish, go back.

Isn't it interesting? It can be seen that Ampere is really working hard!