+A **fundamental constant** is a physical quantity believed to be universal and unchanging, forming the bedrock of our [Universe](/wiki/universe). These values, such as the speed of light or Planck's constant, are essential for describing the fundamental [Physics](/wiki/physics) of reality and are not derived from other constants.
+## See also
+- [Speed of Light](/wiki/speed_of_light)
+- [Planck Constant](/wiki/plank_constant)
+- [Fine-structure Constant](/wiki/fine-structure_constant)
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