Found this which may satisfy some curiosity: This is courtesy of Spatial
Graphics from URL below.
-Bill
http://www.coastnet.com/~letham/utility.html#map utils
The inch 1.0 inch of the International Foot equals 25.4 millimeters
exactly. However, in the US a slightly
different ratio of 1.0 inch equals 25.40005 millimeters or 1.0
meter equals 39.37 inches.
Mail List:owner-mapinfo-l
From: Roy Chiappini <randa@ on 12/24/98 03:57
PM GMT
To: "Uhl, Philip/SLC" <[EMAIL PROTECTED]>
cc: "'[EMAIL PROTECTED]'"
<[EMAIL PROTECTED]>
Subject: (Document link not converted)Re: MI
PRO: Feet vs. U.S. Survey Feet
I was botheree by the same thing. Tracked it down, couldn't rest! The
explanation as told to be by uncle Rehmus or someone, can't remember.
US Foot = 12 inches. US Survey Foot = about 12 inches. Reason:
Surveyers
drag a chain to measure from point to point in some kind of fashion. The
US
Survey Foot accounts for 'chain wear'.
Someone should develop an 'age of chain factor' :^)
Hey, close enough for agriculture?
I think the whole idea qualifies for 'friday humor'
Roy N. Chiappini
"Uhl, Philip/SLC" wrote:
> Hi,
>
> Under Map-->Options-->Distance Units you can choose between "feet" or
"U.S.
> survey feet." I have yet to find a human or website that can tell me the
> difference between the two. For that matter, what's the difference
between
> "feet" and "international feet?"
>
> Thanks,
>
> Phil Uhl
>
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