Why is it that the united states is the only country that sticks with the archaic English system? Don't you think its time that we came to grips with ourselves and changed to the standard. Sure it'd be a pian in the ass for all of the factories and industry for a little while, but at least we'd be on the right track. Doing anything scientific is a real pain in the ass when you have to pay special attention to pounds force and pounds mass, and then there's the whole problem with no four principle units. so don't you think its time we changed?