Creating a formula begins with observation and insight rather than just proportionalities and constants. Famous physicists derive formulas by fitting them to experimental observations, known as empirical formulas, or from fundamental principles that are later tested. For example, Newton's formula F=ma emerged from his insights into motion and force, not merely through mathematical manipulation. The discussion highlights the importance of creativity and intuition in the formulation process, alongside rigorous testing against real-world data. Ultimately, the development of formulas is a blend of empirical evidence and theoretical understanding.
