Bob La Quey wrote:
Hmm ... kind of fun.
But it also leads toward an intriguing idea.
Metric is good, but really should be based on division by
two not ten. Division by two is much more natural than
division by ten.
Sorry. I disagree. I much prefer working in units that map to my
native number system, thank you very much. Think there might be a
reason that metal shops use mils and fractions rather than fractions
everywhere?
Division by 2 might be useful for partitioning, but not for scale
changes. You normally have to go to at least a factor of 4 for a useful
scale change.
A meter, a decimeter, a centimeter, and a millimeter are decent scale
changes.
Similarly, the yard, foot(a little large at 1/3, though) and inch(which
is a little small at 1/12 because of the foot being too large) are okay
scale changes.
The foot is a little large, but surprisingly, it's closer to useful than
a decimeter. Most things are in a single digit of feet, but are in a
double digit of decimeters.
Personally, I would argue against 2 even for partitioning. It doesn't
have enough extra factors. 10 isn't bad (you get 2 and 5). 12 would be
better (2,3,4 and 6).
-a
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