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Results tagged with measurement
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user 15620
3
votes
Why does the US keep survey miles and feet?
Back in 1959, it was because the US had accumulated a lot of survey data using the older definition of the foot.
For most people, the 2 PPM discrepancy between the two types of “foot” went unnoticed; …
- 219
3
votes
Why does the statute mile have the length that it has?
Because furlongs and poles were already-standardized units that predated a c. 1300 measurement reform. These units couldn't be changed without screwing up everyone's property records. …
- 219