After the formulations of Newton and Maxwell theories, it seemed that nothing else could alter the path taken in the Physical description of natural phenomena.The principle of causality well described the electromagnetic phenomena and the motion of celestial bodies, from a deterministic point of view.With the formulation of the Theory of relativity, Einstein continued the path of description of the phenomena in motion even at speeds comparable to the one of light.The change began with the in-depth and studies at the atomic level where, Planck, Bohr and Einstein abandoned the concept of continuity in favor of the introduction of the matter's quantization, however, continuing to interpret the phenomena always with a classical foundation.The contribution of the young Heinsenberg and Schoidenger will be necessary to definitively abandon the classical interpretation in order to introduce the shocking interpretation of the new quantum The subsequent formalization of quantum mechanics based on non-commutative algebra, introduced by the young Dirac continued the path towards the definitive use of quantum theory in the microscopic world.With quantum physics we discover a whole new way of matter and light behaviour in the microcosm realm.Grammatically it could be necessary to just invert one consonant for a vocal: going from causality to casuality.An atom is no longer made up of electrons orbiting like planets and it no longer has a defined trajectory with certain values of speed and position.Quantum physics describe the microcosm praising an evolution of nature towards disorder and uncertainty, rather than a deterministic vision established by cause and effect, dominant in classical physics.The particles can transmit instant information between themselves, beyond the limit of the speed of light, imposed by Einstein with the formulation of the special Relativity Theory.Understanding the behavior of matter at the atomic level will lead you to important reflections, and to finally think that nothing that surrounds us can be more interpreted with deterministic rationality alone. To comprehend the fabolous world of quantum physics It is possible to find hundreds of books, but most of the time they are either too popular or are treated at university level.With the present exposition, instead, I tried to deal with these themes making you understand principally the concepts, without however neglecting the rigorous mathematical formulas and demonstrations, with a langua