Add Yahoo as a preferred source to see more of our stories on Google. A sign indicating speed limit and distance signs are measured in metric is shown in Halifax in a Nov.22, 1983 file photo. THE ...

In our Tire Talk forum, some of our readers have questioned the interchangeability of P-metric and Metric tire size designations. But answering this question is like asking how to solve the national ...

A unified measuring system allows people from different nations to trade with one another without doubting what they are getting. Many attempts to make units of measure standard have come and gone ...

TUCSON, Ariz. (KGUN) — Former KGUN 9 traffic reporter Allen "Big Al" Kath points out a large sign on a recent drive along Interstate 19. He reads it out loud: "Metric signs in use on I-19." The ...