Interesting fact: #uk #imperial units are all legally defined in #metric units. Inch is 2.54 cm, pound is 0.45359237 etc https://www.legislation.gov.uk/uksi/1995/1804/schedule/made
@kravietz
This is logical, you have to have legal coversion table or else everyone would debate how 1 inch centimeters is, this is way of concrete defining.
@nikolal yes, but the point is - is there any other legal definition of "1 inch" rather than "2.54 cm"?
@kravietz
I think not, it wouldn't make sence. Meter is very well defined in metric system with conditions when repeated will always produce same lenght. Foot for example isn't, it was defined as distance from some kings nose to his thumb when he stretched his hand (or something stupid like that, I don't remember well). You can't repeat those conditions and have same lenght, thats why metric system jumps in, it has concrete definition so imperial can rely on it.
@kravietz
There is no need to take them seriously
@nikolal scientists and engineers definitely not, but I periodically meet shopkeepers who make such comments when I order in kilograms :)