PSI is a nice scale for tire pressure since most tires will be between 20-100 PSI. There's pretty much never a reason to use decimals, and 5 PSI is the most useful increment.
Bar is probably nicer for a bunch of other things, but for everyday use, PSI has a nice scale. That's also why I prefer Fahrenheit to Celcius for weather, but Celcius for cooking and science.
no, not at all. bar is a logical metric unit, psi is imperial. because the us doesn't know what powers of 10 are, there's never a nice conversion factor.
Word. "The us doesn't know what powers of 10 are" just didn't convey that clearly.
We're stuck with this shit for now, and one of the few positive things is that it forces you to understand both the conversions and power of 10 is cake compared to understanding both and converting.