+**Quantum** refers to the fundamental, discrete unit of any physical property, such as [Energy](/wiki/energy) or angular momentum. It represents the smallest possible "packet" in which phenomena occur, a cornerstone concept in [Physics](/wiki/physics). This insight reveals a universe where matter and energy are not infinitely divisible but exist in indivisible units, leading to the development of [Quantum Mechanics](/wiki/quantum_mechanics).
+## See also
+- [Quantum Mechanics](/wiki/quantum_mechanics)
+- [Particle](/wiki/particle)
+- [Wave-Particle Duality](/wiki/wave-particle_duality)
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