Magnus, There WERE (past tense) a number of definitions of the inch, ranging from lines on bars of PtIr to a string of grain kernels.
Now there IS (present tense) one, defined as 2.54 cm. -John ================ > John, > > On 06/25/2013 07:52 PM, J. Forster wrote: >> No. It's THE definition... there is only one. >> >> It's not like Pi, which equals 3 for small circles. > > Inches comes in many lengths, these are just a little over 2 ppm apart > from each other. > > In 1893 the Mendenhall Order had the US shift from from using british > definitions to metric definitions the rule, those making the 1866 metric > act only the translation table to the now derivate unit of US Inch, as > opposed to the later defined international inch. > > What a mess, what a mess. > > Cheers, > Magnus > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
