From: Martin Bonner (Martin.Bonner_at_[hidden])
Date: 2007-03-27 04:46:26
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_at_[hidden] www.pi-shurlok.com
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