|Jun30-12, 04:10 AM||#35|
Will the US ever go metric?
It's interesting that the word "mile" comes from the Latin "mille" for one thousand. A Roman mile was 1000 full paces (about 5 feet). So the metric idea is actually ancient. The problem arose when William the Conqueror introduced his French foot to England.
After a lot of confusion over several centuries, England, by Royal order, settled on a mile of 5280 (French) feet. The acre was redefined in terms of this mile with one square mile being exactly 640 acres. This subdivides nicely into successive quarters of 160, 40 and 10 acres. The last step is a rectangular subdivision of ten acres into one acre strips (for plowing) of 660 by 66 feet, or 1/8 by 1/80 of a mile. So the acre makes some sense in terms of English units. Much of the US is surveyed according to square mile sections subdivided this way. I think it will be virtually impossible to superimpose a metric configuration on this huge area at this point in time. So the 43,560 square foot acre is probably here to stay.
|Jun30-12, 11:41 AM||#36|
Blog Entries: 9
|Jun30-12, 12:56 PM||#37|
The real reason for converting to metric is not so much the fact that it's decimal. It's because it has worldwide use and any nation that exports or imports must use it to a certain extent. It's very inefficient to do business in two systems.'
|Similar Threads for: Will the US ever go metric?|
|Symmetric Property in Metric Spaces Implied by Other Conditions of a Metric Space||Calculus & Beyond Homework||1|
|Having trouble writing down a metric in terms of metric tensor in matrix form?||Special & General Relativity||4|
|Einstein metric and Space-time metric||Special & General Relativity||1|
|relationships among metric structure, metric tensor, special and general relativity||Special & General Relativity||18|
|What is the Physical Significance of the Metric Tensor of the Flat Metric?||General Physics||6|