These seven articles try to explain, in laymen’s terms, the research I have done on the black hole partially with Brian Kong. These articles assume that readers are familiar with the mathematical expression “log,” which is explained in my article “Logarithm.” You may skip the second and the third articles if it’s too hard since you don’t need it to understand the other articles. To understand the sixth article, you will need to know the concept of “identical particles” as treated in “Bosons, Fermions and the statistical properties of identical particles.” We will explain our research again in expert’s terms in later articles.