Earlier quoted context omitted.
While I'm an American engineer who prefers working in metric, since this is a space-related article I have to point you to this: https://s-media-cache-ak0.pinimg.com/736x/69/ae/01/69ae0104b...
And I have to point to this: https://en.wikipedia.org/wiki/Mars_Climate_Orbiter#Cause_of_...
Shit happens. Want me to point to the Beagle probe? Space isn't easy.