A *constant of Nature* is a quantity that is deeply anchored in our description of Nature and does not change over time. Well-known natural constants are the gravitational constant, [[Planck's constant]] and the [[speed of light]] in vacuum. >[!read]- Further Reading >- [[Quantum Mechanics]] >- [[Heisenberg Uncertainty Principle]] >- [[Atomic Clocks]] >- [[Speed of Light]] >[!ref]- References