Because it was started by Germans imported under Operation Paperclip.Holm86 wrote: ↑28 Feb 2020, 10:44I thought it was common knowledge, but most of my friends are of a technical education, and into cars, so they know what an inch is
But I would really hop that the united states would jump on the metric bandwagon, as the inch is an irritating unit to work with when we get CAD models from american sub suppliers.
NASA a place of the most brilliant minds in America uses the metric system, that should say it all