It is well known that the USA uses miles, feet and inches and they are identical to the English versions of these units used in the UK. What is a lot less well known is the fact that the USA had two official feet, the international foot and the survey foot. By extension, there were also two versions of derived units based on these two feet. So there were survey and international versions of common units such as the mile, yard and inch. The US survey foot was deprecated at the end of last year. This deprecation act shows the importance of ensuring uniformity and common standards in measurement matters.Continue reading “Retirement of the US survey foot”
New role for Britain’s road signs
An analysis by the Government of UK economic prospects post-Covid has identified the importance for our economic recovery of services generally and tourism in particular. Meanwhile a separate study by tourism bodies has looked into attracting foreign tourists.Continue reading “New role for Britain’s road signs”
An unnatural foot
Ronnie Cohen looks at the tenuous link between the imperial foot and human feet.
International comparisons of social distancing measures
Following on from his article about social distancing in the UK (Metric Views, 16 April), Ronnie Cohen now considers the contribution of the global measurement system to understanding the pandemic.
Continue reading “International comparisons of social distancing measures”