Fundamental constants

Fundamental constants are universal numbers that describe the basic properties of our universe, remaining the same everywhere and at all times. Examples include the speed of light (how fast something can travel), the gravitational constant (strength of gravity), and the fine-structure constant (which influences how particles interact with each other). They serve as the building blocks of physical laws, helping scientists understand and predict natural phenomena from atoms to galaxies. These constants are crucial because they underpin the consistency and structure of the physical universe, providing a foundation for the scientific description of reality.