And imperial units such as the mile weren’t standardized yet across countries, nor was the metre defined in terms of c and the second, so c wasn’t “exactly 670616629.2 miles per hour” according to the 1901 meaning of mile.
And imperial units such as the mile weren’t standardized yet across countries, nor was the metre defined in terms of c and the second, so c wasn’t “exactly 670616629.2 miles per hour” according to the 1901 meaning of mile.