The Fission Theory: This theory proposes that the Moon was once part of the Earth and somehow separated from the Earth early in the history of the solar system.
This provides modular approach to programming. Classes. A class is a concept used in object oriented programming languages such as C++, PHP, and JAVA etc. Apart from holding data, a class is also used to hold functions. An object is an instant of a class. In case of variables, the type is the class whereas the variable is the object.
Python Methods. In the simplest term a method is a function inside of an object. You can pass attributes (variable inside a method) to the class and method that will get processed inside of the method and independently for each object. Variables or attributes defined or initialized at the beginning of the class are inherited to the methods inside that class. We will see in the examples.