The Discoverer of the Phenomenon of Self-Induction-Henry

In history, the first person who discovered electromagnetic induction and self-induction was joseph henry, a scientist from the United States, and he also did a lot of research in other aspects of electromagnetism experiments and achieved fruitful results. In order to commemorate him, people use his name “Henry” as the inductance unit, but there is little introduction to him in the relevant textbooks of middle schools. This paper supplements some related materials and focuses on his scientific contribution to commemorate this great scientist.