Scott McMurray wrote:
On that note, I have an (old) pocket handbook that says the following: The _British Unit of Length_ is the Imperial Standard Yard = the length of a bronze bar, preserved in the Parliament building in London at 62 degrees F. In 1935 1 in. was determined as equaling 25.399956mm and 1 yard as 0.914398416 m. The _North American Yard_, by the Mendenhall decree in 1893 was determined as equaling (3600/3937) m = 0.9144018 m; 1 American in. = 25.400051 mm.
Wikipedia suggests that there's also an _International Yard_ = 0.9144 m; making 1 International inch = 25.4 mm.
It /is/ an old handbook! Recently (in the '50s I think) the US and UK standardized on one inch = 25.4mm exactly. -- Martin Bonner Project Leader PI SHURLOK LTD Telephone: +44 1223 441434 / 203894 (direct) Fax: +44 1223 203999 Email: martin.bonner@pi-shurlok.com www.pi-shurlok.com