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A comment on Perseverance Rover lands on Mars [video]. Parent comment

Re:Perseverance Rover lands on Mars [video] by onion2k on Friday February 19, 2021 @01:14AM (#26190290)
But with the metric system you only really get cm (too coarse) and mm (too fine) but you don't get something like 9/16 so you can't "work in 16ths" and have everything be whole units again.

People who use metric units are perfectly happy rounding to the nearest 0.5cm or 0.25cm if that's what's needed, exactly as people do with inches. Why on earth would you imagine people use mm if something doesn't call for them?

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Re:Perseverance Rover lands on Mars [video] by mulmen on Friday February 19, 2021 @03:33AM (#26190887)
But does anyone say 1/8th centimeter? Seems easier to just drop down to millimeters at that point. Which is fine, but it loses out on the convenience of fractions.
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Re:Perseverance Rover lands on Mars [video] by onion2k on Friday February 19, 2021 @05:31AM (#26191541)
People do say things like 1.25mm, which is 1/8th of 1 cm.

Presumably someone who uses Imperial would say 5/128th inches if they wanted to describe something that's equivalent to 1mm?

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Re:Perseverance Rover lands on Mars [video] by Evidlo on Friday February 19, 2021 @11:42AM (#26194915)
Most likely they would use mils/thou.

25mils ~ 1mm

Or 1/16in as others have said.

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Re:Perseverance Rover lands on Mars [video] by Hextinium on Saturday February 20, 2021 @03:34AM (#26202621)
40 mils ~ 1 mm

1000 mils / 25.4 mm = 39.3

This simple fact still seems wrong to me somehow.

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Re:Perseverance Rover lands on Mars [video] by Evidlo on Saturday February 20, 2021 @03:51AM (#26202729)
Brain fart
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