Jan 17, 2018
Jun 8, 2017
For certain applications like engineering and land surveys, it’s actually better than the metric system. We had to learn to do both systems when I studied engineering. It’s less confusing to have a unit of mass that is actually a unit of mass, rather than being used for “weight” like the kilogram. Weight is a force, not mass. The English system uses force units for weight. While I can think in inches and feet, I also can think in millimeters and centimeters. We used to call that the “calibrated eyeball” where you’ve done so many measurements that you can see a length or difference in length to a small fraction of an inch or in mm. I did so many concrete pours (before infrastructure was abandoned in the 1990s) that I could look at the concrete and be within 1/2inch or so of of the measurement of slump. Didn’t use tiny units like pascals much, though. Used PSI or KSI. Got to where I could tap concrete with a hammer and tell you within 100 PSI of how much pressure it would take to break it. One fellow at the same lab could do it within ten PSI.