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Re: MPH vs. RPM, Spitfire 1500

To: <OC@46thFoot.com>, Donald H Locker <dhl@chelseamsl.com>
Subject: Re: MPH vs. RPM, Spitfire 1500
From: "Laura Gharazeddine" <Laura.G@141.com>
Date: Tue, 18 Dec 2001 14:02:49 -0700
For a moment I had to check which list this came from-I thought it 
was the Al Stewart Mailing List, but couldn't remember the thread!
(Greg Rowe will know what I'm talking about.)

Laura G.

>Two notes:  Roman Legionaires had regular legs -- a pace is two 

steps
>(left foot to left foot) so each step was 0.8 yards long.  The
>calibration procedure involved using a lot of soldiers and taking 

the
>average pace as the official pace.  In any measurement, the error 

is
>reduced by a factor of the square root of the number of 

inidividual
>measurements made -- 100 soldiers reduces the error to 10% of the
>error of using one soldier.  And Rome had plenty of soldiers to 

work
>into their average.
>
>HTH,
>Donald.
>
>> Date: Mon, 17 Dec 2001 00:33:06 +0000
>> From: Michael Hargreave Mawson <OC@46thFoot.com>
>[snips]
>> The Imperial Mile ought to be pretty close to a kilometre.   

The word 
>> "mile" comes from the Latin "mille passuum" meaning a thousand 

paces. 
>> According to the OED, however, the Imperial Roman Mile has been 
>> calculated at 1618 yards, which must mean that Roman 

Legionaries had 
>> *very* long legs.   I wonder how they were calibrated?

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