To:	opendos AT delorie DOT com
X-Comment-To:	"Alan S." <as173 AT cornell DOT edu>
References:	<200104072210 DOT SAA14388 AT delorie DOT com>
	<3ACFF9D0 DOT 681E32CF AT cornell DOT edu>
Message-Id:	<2.07b7.W72P.GBGSPU@belous.munic.msk.su>
From:	"Arkady V.Belousov" <ark AT belous DOT munic DOT msk DOT su>
Date:	Sun, 8 Apr 2001 12:25:06 +0400 (MSD)
Organization:	Locus
X-Mailer:	dMail [Demos Mail for DOS v2.07b7]
Subject:	Re: [off-topic] shutting down
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MIME-Version:	1.0
Reply-To:	opendos AT delorie DOT com

X-Comment-To: Alan S.

Hi!

7-áÐÒ-2001 22:40 as173 AT cornell DOT edu (Alan S.) wrote to opendos AT delorie DOT com:

AS> However, IIRC, there are two very slightly different 'inches', viz.:
AS> The 'Historical' Imperial Inch equal to 2.539998... cm
AS> and the SI Inch which is an (SI) Special Name for [exactly] 2.54 cm
[...]
AS> [ For that matter, the litre was resized from 1,000.028 cubic cm to be a
AS> Special Name for (exactly) 1,000 cubic cm in 1964. ]

     Not very so. In 1889 on the I General conference was affirmed the 1
kilogramm as weight of 1 litre (1 dm^3) clear water at temperature of its
most density. First weight etalon was implemented as platinum cylinder block
at height and diameter of 39 cm. But later was find out that prototype was
implemented not too precise and litre become not equal to 1 dm^3 (but with
0,0028% error). This was corrected on the XII General conference in 1964.

:)

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