Quantum mechanics governs the behavior of matter at small scales from "summary" of The Fabric of the Cosmos by Brian Greene
Quantum mechanics reveals a startling truth about the world we inhabit. When we peer closely at the fabric of reality, studying the behavior of matter at minuscule scales, we encounter a realm governed by a set of rules radically different from those we are accustomed to in our everyday lives. This esoteric domain defies common sense, challenging our intuitions and forcing us to rethink our understanding of the universe. At the heart of quantum mechanics lies the concept of uncertainty. Unlike classical physics, where the position and momentum of a particle can be precisely determined, in the quantum realm, these quantities become intertwined in a dance of probabilities. Heisenberg's Uncertainty Principle asserts that the more precisely we know one of these properties, the less we can know about the other. This fundamental limit on our knowledge reflects the inherent fuzziness of ...
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