On 03/04/2017 20:45, rickman wrote:
> On 4/3/2017 3:39 PM, The Natural Philosopher wrote:
>> On 03/04/17 19:15, rickman wrote:
>>> I was born with English units here in the US.  I hate them.
>>
>> Good greif! What have they ever done to you then?
>>
>> I neither love them nor hate them. They are what they are. History that
>> refuses to quite die, and I work in imperial and metric simultaneously.
>>
>> I know exactly how many mm an inch is and how many grams a pound is.
>
> How many cubic inches in a cubic yard?  How much does a cubic yard of
> water weigh?  How many teaspoons in a quarter cup?
>
> I'll take metric any day of the week!
>

There's one unit of measurement that is not an integral divisor
of most of the others, which is the LINK in the surveyor's chain
at 7.92 inches.

A CHAIN at 22 yards is so-called because that's the length of the
surveyor's chain, divided into 100 links of 7.92 inches.

A quarter of a chain, at 16 1/2 feet is a PERCH, and the surveyor had
a foldable stick for this purpose, and so the perch became known by
its tool, the ROD or POLE.

Rod, pole or perch; so beloved on the back of those old red exercise books!

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