>>Which reminds me that in no country the SI unit for temperature (Kelvin) is in common use! This one seems to be reserved for scientific applications.
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>Yeah, that one's got a long way to go catching on...
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>>And then, of course, we have the continuos confusion of people saying that something "weighs" so-and-so many kilograms.
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>I figure that's okay as long as people understand the difference (but mostly, they probablly don't understand, unfortunately). There isn't any good, widely understood verb-form of mass, is there? That may be part of the problem with this...you can say "measure" referring to taking a mass measurement, of course, but it's not very specific of a term.
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>"Mass" has too many meanings, also, to make it a useful verb? ("To mass"?)
I would say "... has a mass of ... kg.". Unfortunately, this is more involved than the (incorrect) form: "... weighs ... kg.". AFAIK, there is no corresponding verb, that would make it simpler. This may be because the concept of "mass" is newer than the concept of "weight".
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)