On Thu, 15 Aug 2013 19:28:46 +0100, Chris Angelico wrote: > On Thu, Aug 15, 2013 at 5:54 PM, Joshua Landau <jos...@landau.ws> wrote: >> On 15 August 2013 16:43, Chris Angelico <ros...@gmail.com> wrote: >>> A mole is as much a number (6e23) as the light year is a number >>> (9.5e15). >> >> A mole is a number. A light year is a unit. > > A mole is an amount of something. Avogadro's Number is a number, which > is what I was hinting at :)
Would you consider "a dozen" to be a number? Normally we use dozen only in reference to a dozen of something, not as an abstract pure number, but it's still a number in a way that "light-year" (or "mile", or "gram", or "second") is not. Mole is like dozen. Light-year is like mile. And Avagadro's Number is like "twelve", only a bit bigger :-) -- Steven -- http://mail.python.org/mailman/listinfo/python-list
