RE: Ambiguous Measurement Terminology

From: Hodder, David J (
Date: Mon Feb 01 1999 - 17:45:20 EET

Great concept, Al. Perhaps it will stimulate the US take the metric leap
[even old England has not used English Units for many years].

While you're at it, how about specific definitions and traceable standards
for 'a tad', 'touch', 'smidgen', 'scauche', 'wee tap', 'RCH', 'mosquito's
eyelash', etc.?
'If it ain't broke, break it'
Functional Technology Leader
Boeing Philadelphia Prototyping Center

> ----------
> From:[]
> Sent: Sunday, January 31, 1999 7:00 PM
> To:
> Subject: Ambiguous Measurement Terminology
> -- [ From: Al Hastbacka * EMC.Ver #2.5.3 ] --
> I have noticed that went RP people talk about measurements in mils,
> there can be a great deal of confusion. The problem comes about,
> because depending on the background of the person, this can mean
> millimeters or thousandths of an inch. For example, 2 mils may be
> interpreted as two millimeters or 0.002 inches.
> In order to overcome this problem, I propose that we use a new standard.
> You have probably heard the statement that a "measurement was on within
> a gnats ass". In order to understand what this really means, I have
> examined some photographs of gnats and measured what appears to be their
> ass. From these photographs, the average value of the gnats ass came
> about to be 0.002 inches or 0.05 millimeters.
> I am therefore proposing an unambiguous measurement amongst RP'ers to be
> GA units (GA is the abbreviation for gnats ass), where a GA is 0.002
> inches or 0.05 millimeters.
> What do you think?
> Regards,
> Al Hastbacka
> For more information about the rp-ml, see

For more information about the rp-ml, see

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