Decades ago, I struggled with the start of a math class as a young engineering student until one professor, one day, said, "It's easy to calculate how many feet

Decades ago, I struggled with the start of a math class as a young engineering student until one professor, one day, said, "It's easy to calculate how many feet of steel you need to get from point A to point B but what if you need to calculate the number of feet for the curved support under the Eads' bridge?" He then proceeded to show how it's done and everything sunk in after that.