The transition from one energy conversion system to another is impossible without the real physical parameters of the inertia of any object (for example, centimeters and millimeters to the fourth degree).
When calculating building structures, inertia in mm4 and cm4 is a practical calculation method.
Theoretical drawing - a document that defines the geometric shape (contour) of the product and the coordinates of the location of the components.
The work of the mm4 and cm4 program determines the meaning of the power of knowledge.