this post was submitted on 26 Jul 2023
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+/- 20% is good enough for e6 and covers the overwhelming majority of men’s foot lengths.
For making a measurement without a tool +/-20% should be fine.
It’s all fun and games, but I take issue with calling metric “civilized units”. Human civilization developed all kinds of units appropriate to the work being done and calling the ones defined almost in defiance of everyday use the civilized ones is absurd.
Being able to easily convert between various units makes the metric system the only one worth considering civilized.
Every time I see a wrench labeled with some insane fraction like 18/32 my eye starts twitching. I honestly cannot tell which size is bigger without dividing and converting to decimal.
Human civilization developed all kinds of dumb shit we've since discarded. Please let's discard the idiotic units in my lifetime.
I think you mean a 9/16. It’s be pretty crazy to see one labeled 18/32.
When you wanna make fun of sae use an odd number on top so no one can make fun of you for not reducing your fractions like a fourth grader. Or so you whip out 9/12 and get elementary school math mogged anyway.
How is it easier to convert between units under metric? I don’t have any use for a kilogram length of lumber or a meter of gasoline. What unit conversions are you doing?