Quantum mechanics revolutionized physics from "summary" of The Principles of Quantum Mechanics by P. A. M. Dirac
The development of quantum mechanics had a profound impact on the field of physics. It brought about a significant shift in the way we understand the behavior of particles at the atomic and subatomic levels. Prior to the advent of quantum mechanics, classical physics had been successful in describing the motion of macroscopic objects. However, when it came to explaining the behavior of particles at the smallest scales, classical physics fell short. One of the key aspects of quantum mechanics is the concept of wave-particle duality. This idea suggests that particles, such as electrons and photons, can exhibit both wave-like and particle-like properties depending on the experiment being conducted. This duality challenged the traditional notion of particles as discrete entities with well-defined positions and velocities, leading to a paradigm shift in our understanding of the nature of matter. Another fundamental principle of quantum mechanics is the uncertainty principle, first formulated by Werner Heisenberg. ...
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