>>As is the case in the UK with road signage, **the use of metric units in the USA is often hidden from public view**. The Apollo Guidance Computer is a good example of this. The computer display readouts were in units of feet, feet per second, and nautical miles – units that the Apollo astronauts, who had mostly trained as jet pilots, would have been accustomed to using. Internally, however, the computer’s software used SI units for all powered-flight navigation and guidance calculations, and values such as altitude and altitude rate were only converted to imperial units when they needed to be shown on the computer’s display. https://themetricmaven.com/when-pigfish-fly/ >>BTW, NASA did use the metric system in the days of Werner von Braun. He once stated before his death that he loathed USC and used metric in his calculations, as did the other Germans working at NASA pre-1970s. They were forced to convert their results so that the contactors working in inches could build the rockets. So in essence it was the hidden metric that put man on the moon and USC stole the spotlight. Conclusion: Wernher von braun had to accomodate mongoloids essentially by converting his metric calculations to feet, stones, potatoes, etc... AKA fake imperial system aka united states customary units @wolfgang Face it faggot, without europeans and the metric system, your collective asses wouldn't have landed on the moon... (allegedly...)