DSC Weekly Digest 16 Nov 2021: The Importance of Dimensional Modeling - DataScienceCentral.com

When I was in high school, I had a superb chemistry teacher, something I, unfortunately, failed to appreciate until long after I went to college. For the first year of AP chemistry, we spent a huge amount of time working on what was at the time called unit analysis, though from a modeling perspective this is now known as dimensional analysis. It is, sadly, something of a lost art, and it's something that trips up people far more often than it should. Dimensional analysis, in its purest form, can be summarized as the statement "You can't compare apples to oranges." Put another way, if you add three apples to two oranges, you do not have five apples.