The Constant

In mathematics and physics, a constant is a fixed value that doesn't change over time or in different situations. It serves as a reference point or a specific, unvarying number within formulas or theories. For example, the speed of light in a vacuum (about 299,792 kilometers per second) is a constant because it remains the same everywhere in the universe. Constants help scientists describe, measure, and predict phenomena consistently, providing stability and reliability in equations and calculations. They are essential for understanding the fundamental principles that govern our world.