The century-old era of formalism in physics has ended. Today, we need new ideas that will ensure progressive development for many years to come. We can propose them only by understanding the nature of the universe. The revival of ether as a universal global medium is not the sole purpose of this work, because ether is coming back into fashion under its own name. We aim to outline simple, clear, and distinct ideas about the world that are accessible to common sense. We seek to understand the detailed structure and energy sources of the Universe Machine. We want to demonstrate a physical model of the development of nature, in which ether, as a single and pervasive form of matter, is the basis of everything that exists.
A simple explanation of the most mysterious classical mechanics and theoretical physics concepts - inertial and non-inertial reference systems, the forces of inertia, the motion of bodies by inertia on the basis of a simple vortex model of solids and D’Alembert’s paradox, as well as on the equilibrium conditions of incompressible fluid and the principle of attached masses for potential flows are proposed. A new interpretation of Newton’s three laws is presented on the basis of the resulting model.