Posted: Oct 10, 2010 - 11:24 PM
We went through the pain in Canada when I was about 12. There were quite a few costs associated with the change, & grants were given to tradespeople, mechanics had to invest lots of $$ for metric wrenches.
We did it because a tremendous amount of Canadas foreign trade was in large volume commodities,gas/oil, lumber, coal, grain. All of them trade internationally in metric tons, giga joules etc. A secondary reason was to become one with the scientific community.
Of course there was much gnashing of teeth & predictions of doom, but as you mentioned the entire system can be learned in 15 minutes, 20 for the slow kids. I often wonder why we wasted days of our school life learning things like feet to a mile, inches to a yard, acres to a section, pecks in a bushel, ounces in a pound, (was that fluid, troy, dry or avoirdupois?) Where is it that water freezes & boils? Not a single measurement from the old British system had one iota of logic or consistency. I spent a lot of time on cars as a kid, I remember working on an ignition system & couldn't seem to find a wrench that fit, my Dad pulled out "an ignition wrench set", 32nds of an inch. That did it for me, give me metric. For those with science backgrounds the old system was very frustrating, only the Brits could invent a system of quid, stones, rods & farthings...
In a previous life I engineered water projects, try to remember there are 43 thousand some odd sq feet to an acre,( and while surveying the project, an acre is defined by a "rod" moved across the distance of 1/2 mile, & if you did that 640 times you would have a section & that "rod" equals 16 1/2' & 3 of them is a "chain") & if I can contain 2000 acre feet how many gallons of water will we have?
Even though we changed decades ago, there are still some holdovers. The breweries did not want to redesign their bottles, so domestic beer is 374 ml, vs the European imports of 500 ml.
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