Talk about uncoordinated, Bill! You've got your feet mixed up!
We have two feet in this country, as of 1959. That's when the yard was
redefined from 1 yd = (3600/3937) m (as of 1893) to 1 yd = 0.9144 m.
Surveyors raised a stink so Congress enacted the statute mile and the
survey foot, using the older, 1893, definition of the yard in each case.
A point of trivia is that there are no inches in the survey foot; it is
divided into 100 parts. That Congressional act is most likely the basis
for "statute" in "statute mile", etymologically speaking.
TN code has it right.
Jim
Bill Potts wrote:
And to think that I always thought Tennesseans were uncoordinated (something
to do with sour mash). :)
Interestingly, that final equation uses the now-deprecated (even though
quite precise) 39.37 inches per meter ratio, rather than the now statutorily
exact ratio of 0.0254 meters per inch (or 0.3048 meters per foot).
This isn't an objection. As taking it to two more decimal places only yields
39.3701, 39.37 is a more than adequate ratio. And, of course, we're talking
about an 80-year-old standard.
Bill Potts
Roseville, CA
http://metric1.org [SI Navigator]
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of James Frysinger
Sent: Thursday, November 29, 2007 12:37
To: U.S. Metric Association
Subject: [USMA:39817] Tennessee Coordinate System
...
(c) The definition of the "U.S. Survey Foot," with the associated factor of
1 m = 39.37/12 feet, shall be used in any conversion necessitated by
changing values associated with the Tennessee Coordinate System of 1983,
from meters to feet.
--
James R. Frysinger
632 Stony Point Mountain Road
Doyle, TN 38559-3030
(H) 931.657.3107
(C) 931.212.0267
