The “The Principles of Newtonian and Quantum Mechanics: The Need for Planck’s Constant, h” 2nd edition of this PDF ebook offers, as the very first, with the structures of classical physics from the “symplectic” point of view, and of quantum mechanics from the “metaplectic” point of view. We have actually modified and enhanced the subjects studied in the 1st edition in the light of brand-new outcomes, and included numerous brand-new areas. The Bohmian analysis of quantum mechanics is talked about in excellent information. Phase area quantization is attained utilizing the “concept of the symplectic camel”, which is a deep topological residential or commercial property of Hamiltonian streams. We present the idea of “quantum blob”, which can be considered as the basic stage area system. The mathematical tools established in this ebook are the theory of the symplectic and metaplectic group, the Maslov index in a strenuous kind, and the Leray index of a set of Lagrangian aircrafts. The idea of the “metatron” is presented, in connection with the Bohmian theory of movement. The brief-time habits of the propagator is studied and used to the quantum Zeno impact.