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Old 12-16-2015, 04:41 PM   #142 (permalink)
Piwoslaw
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Join Date: Oct 2008
Location: Warsaw, Poland
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Svietlana II - '13 Peugeot 308SW e-HDI 6sp
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Quote:
Originally Posted by jamesqf View Post
The metric system irrationally defines some units in terms of other units to which they are unrelated. As for instance the gram being the mass of one cc of water. Why water rather than mercury or hydrogen? Purely arbitrary.
Water is the base of life on Earth, very easy to find. Much easier to find, contain, manipulate and weigh, than mercury or hydrogen. Had we evolved elsewhere, we may have used methane or ammonia. As I wrote:
Quote:
Originally Posted by Piwoslaw View Post
The actual scalar length of the meter is more or less arbitrary, just like the inch or pound. On Earth or on a different planet, neither is better.
We all know that the transition from imperial to metric units will not be easy nor cheap. But if it were started today, then would it be relatively less expensive, than had it been done in the 1970's? And if we wait another 30 or 50 years, will the change be still easier and cheaper then?
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