/diy/ - Do It Yourself

>>2596670
>so how do you divide an inch into three equal parts?
https://en.wikipedia.org/wiki/Barleycorn_(unit)

>how do you divide a gallon in three equal parts?
77 cubic inches.

>how do you divide a pound into three equal parts?
4 ounces if in Troy units, Avoirdupois pounds were not made to divide evenly into thirds as the grain the system was designed for rarely saw such a task.

>which is why US customary has spread around the globe instead of the stupidity of making everything divisable by 10
Before Metric was forced on most of the globe via government mandate, customary systems (based on such combinations of smaller numbers rather than 10) were in use everywhere.