The atom and the Bohr theory of its structure : $b an elementary presentation

: "The Atom and the Bohr Theory of Its Structure: An Elementary Presentation" by Helge Holst is a scientific book from the early 1900s that explains atomic theory, especially Niels Bohr's ideas about how atoms are built and how electrons act. It's for people who want to learn about atoms without dealing with complicated math. The story starts by looking back at the history of atomic theory, with philosophers like Democritus. It then talks about the big steps scientists took around 1900 to understand atoms, like finding electrons and developing quantum theory. The book shows how Niels Bohr's important work in 1913 combined old and new ideas to give us a complete picture of atomic structure, setting the stage for more detailed explanations later on.