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Subject: Re: [office-formula] Straw poll - slug
On Tue, 2010-04-06 at 09:31 -0600, David A. Wheeler wrote: > >Can we have a straw pool on slug? > > Show of hands for: > > 1) "sg" : slug, 32.174 international pound mass (avoirdupois) > > or > > 2) 1 slug = 1 lbf * sec2 / ft > > I have a minor preference for #2, in part because there is no question it's exact, and in part > because there is no question that it's correct. Definition #1 should only be used if it is *exact*, > and that calculation needs to be shown in the JIRA comment (and maybe the document itself). This also raises another question: For some units we say "exactly..." for others we don't. We say "Light-year, the distance light travels in a year of 365.25 days" which isn't exact at all (we probably mean in vacuum...). > Andreas
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