In normal everyday life, you rarely need to involve time in your calculations. In science and engineering you do, and that’s when you run into problems.
When comparing two pumps, you run into issues like this. Which one is bigger: 29 m^3/h or 410 l/min. Doing calculations like that once or twice is recreational mathematics, but in a professional setting, these conversions are speed bumps standing in the way of getting stuff done.
In normal everyday life, you rarely need to involve time in your calculations. In science and engineering you do, and that’s when you run into problems.
When comparing two pumps, you run into issues like this. Which one is bigger: 29 m^3/h or 410 l/min. Doing calculations like that once or twice is recreational mathematics, but in a professional setting, these conversions are speed bumps standing in the way of getting stuff done.