Buckingham π theorem

Buckingham π theorem is a tool scientists use to figure out how many independent physical measurements are needed to determine the value of the physical properties of a system. It helps scientists figure out what measurements to take so that they can use math to figure out the exact value of something like the time it will take for a ball to fall from the sky, or how long it will take for a rocket to reach the moon. So, Buckingham π theorem is like a cheat sheet that helps scientists get all the numbers they need to solve a big math problem.