[OA5599]

My favorite unit is the thou. One thousandth of an inch. A hybrid of metric and English.

Interesting. I've never heard of that measurement. Where I work, we call that a "mil" and that unit is most commonly used in our turbine supervisory instrumentation. (But the interwebs say a "thou" and a "mil" are one and the same.) Now I know that.

[brianr10]

I heard of mils used to measure plastic films.