In this paper we will study the strong coupling constant. The recommended theoretical value for the strong coupling constant is αs=Euler's number/Gelfond's constant. It will turn out that this value is the key that solves many problems of Physics. We will find a lot of formulas for the strong coupling constant. All these equations prove that the value of the strong coupling constant depends on the energy scale. First we will find the beautiful unity formulas that connect the strong coupling constant and the fine-structure constant. These equations are the simple unification of the strong nuclear and the electromagnetic interactions. It will be presented the mathematical formulas that connect the dimensionless physical constants with the strong coupling constant. From these equations we reached the formula of the unification of the strong nuclear,the electromagnetic and the gravitational interactions. Also we will find the formula for the Gravitational constant. Finally we will be presented the formula for the cosmological constant. This unity formula is a simple analogy between atomic physics and cosmology.  All these equations are simple,elegant and symmetrical in a great physical meaning.