If we really wish to trace back the history of inch, it may be interesting to go back to Mohenjo-Daro and see the INDUS Inch lying in the National Museum, New Delhi. The traces of this and interpretation follow its links with 'Lothal and Stone-hinge Rectangle'. The fortunate part is we are talking about SI and its implementation. Being 200 years too late is just too bad! Brij Bhushan Vij <[EMAIL PROTECTED]>
>From: "Hillger, Don" <[EMAIL PROTECTED]> >Reply-To: [EMAIL PROTECTED] >To: "U.S. Metric Association" <[EMAIL PROTECTED]> >Subject: [USMA:21453] Re: Inch Date: Wed, 31 Jul 2002 09:08:49 -0600 > >See: http://lamar.colostate.edu/~hillger/dykt.htm#inch > >-----Original Message----- >From: Markus Kuhn [mailto:[EMAIL PROTECTED]] >Sent: Wednesday, 2002 July 31 09:00 >To: U.S. Metric Association >Subject: [USMA:21452] Re: Inch > > >Jim McCracken wrote on 2002-07-31 13:45 UTC: > > The inch was not set at 25.4 millimeters centuries ago, but in the > > 1950s. > >Was setting the inch to 25.6 mm or 25.0 mm seriously discussed as an >option at this or at any earlier opportunity? Is the rationale for the >choice of 25.4 mm for the inch documented somewhere in more details, as >well as the history of previous definitions for the inch? > >When was the inch defined in the US for the first time with an accuracy >of better then 0.1 mm? the practice of length measurement with a >relative error below 1% surely must predate the 1950s significantly ... >even centuries ... > >Markus > >-- >Markus G. Kuhn, Computer Laboratory, University of Cambridge, UK >Email: mkuhn at acm.org, WWW: <http://www.cl.cam.ac.uk/~mgk25/> _________________________________________________________________ Chat with friends online, try MSN Messenger: http://messenger.msn.com
