Its all about Physics.

  Classical Mechanics: Introduction: A physical theory known as classical mechanics describes the motion of macroscopic objects, such as projectiles and machine parts, as well as astronomical objects like satellites, planets, stars, and galaxies. If the current state of an item regulated by classical mechanics is understood, it is conceivable to forecast its future motion (determinism) as well as its previous motion (reversibility).   Classical Mechanics Newtonian mechanics is a common name for the first branch of classical mechanics. It is made up of the mathematical techniques developed by Gottfried Wilhelm Leibniz, Joseph-Louis Lagrange, Leonhard Euler, and other contemporaries in the 17th century to describe the motion of bodies under the influence of a system of forces. These concepts are based on the fundamental works of Sir Isaac Newton. Lagrangian mechanics and Hamiltonian mechanics are reformulations of classical mechanics that were created later using more abstract t...