One of my teachers had the habit of using the edge of a 15" ruler to hit the
knuckles of a student who had the gaul to use their left hand to write,
She also had a long brown habit which she wore every day and I don't think
it was ever washed cause it was a stinky habit.
As I use a scale rule every day, I was very careful when I used the word
'ruler' as I knew it would be picked on whatever I called it.
If somebody could direct me to any information that disproves that 'ruler'
is as correct if not more so than both 'scale' or 'rule', I will stand
All I can dig up is-
rule vs ruler,
one just measures and the other is a straightedge that may measure
(not so sure),
one has the measuring marks starting at the end and the other has the
marks starting inside the edge (seems more likely).
I think 'scale' could apply to either, just meaning it is used to
translate from one scale to another (real/scale, scale 1 to scale 2)
A "ruler" is that plastic or wood thing they made us buy in elementary
school, usually a foot long, with a straight edge, and calibrations,
typically in inches and fractions, and sometimes centimeters as an
Hope This Helps!
The Online Etymology Dictionary (and other sources) specify that a
'ruler' is a strip for making straight (or 'ruled') lines (parenthesis
mine)...so traditionally a 'ruler' was a straightedge, while a 'scale'
is a device with lines for measuring distance. The thing we use in
school is technically a 'scale ruler', however everyone just calls it
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