The law of 18 Germinal An 3 (7 April 1795) states:
Enfin, kilomètre et myriamètre seront des longueurs de mille et dix mille
mètres, et désigneront principalement les mesures itinéraires.
Finally, a kilometer and myriameter will be of lengths of [one] thousand and
ten thousand meters, and will designate principally the route measures. (my
translation)
(see http://histoire.du.metre.free.fr/ )
There is no other mention of this prefix in this law. I do not know about
any other usage. It has never been part of SI.
--
John Hynes
www.decimaltime.org
----- Original Message -----
From: Bill Hooper
To: U.S. Metric Association
Sent: Saturday, January 27, 2007 2:03 AM
Subject: [USMA:37886] Re: Are there Decimeters ? If sow then Where?
On 2007 Jan 26 , at 12:06 AM, Pat Naughtin wrote:
(in connection with my claim that early on their were just 6 metric
prefixes, mill-, centi-, deci-. deca- (or deka-), hecto-, and kilo-.
Question, Bill. What about the myriametre (mym)? Was myria (symbol my)
not
one of the original prefixes standing for 10 000 metres?
Yes, there was a multiple of the metre named the myriametre. I wasn't sure
of
the facts on this unit and didn't want to confuse the train of thought of
the
rest of my description to explain all that, so I left it out. Technically
that
was an error but it does not affect the meaning or intent of the rest of the
discussion. Am I correct in suggesting that the prefix myria- was never used
with anything but metre?
Regards,
Bill Hooper
Fernandina Beach, Florida, USA
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SImplification Begins With SI.
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