![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/a/a0/Fabry_Perot_Etalon_Rings_Fringes.png/640px-Fabry_Perot_Etalon_Rings_Fringes.png&w=640&q=50)
Fine structure
Details in the emission spectrum of an atom / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about Fine structure?
Summarize this article for a 10 year old
SHOW ALL QUESTIONS
In atomic physics, the fine structure describes the splitting of the spectral lines of atoms due to electron spin and relativistic corrections to the non-relativistic Schrödinger equation. It was first measured precisely for the hydrogen atom by Albert A. Michelson and Edward W. Morley in 1887,[1][2] laying the basis for the theoretical treatment by Arnold Sommerfeld, introducing the fine-structure constant.[3]
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/a/a0/Fabry_Perot_Etalon_Rings_Fringes.png/640px-Fabry_Perot_Etalon_Rings_Fringes.png)