Quantum Explained | Quantum & Astrophysics on Instagram: "Quantum mechanics is the branch of physics that studies how matter and energy behave on the smallest scales — at the level of atoms and subatomic particles. Unlike classical physics, which deals with predictable motion, quantum mechanics reveals a strange world where particles can exist in multiple states at once, behave like both waves and particles, and can even influence each other instantly over long distances (a phenomenon known as e