No silly, What I meant was a foot was re-re-re-defined every time the monarch changed and that they might have forgotten to redefine inches or something; any way the foot of a king is arbitrary, isn't it?
They based the system of measurement off a system of meaurement, huh? "Your foot is 12 yazzes long, so that will be a foot. Also, yazzes will be called inches!"
and if i remember correctly, the nasa once lost a space probe because they had 2 teams working on it, and one team was either using miles or gallons while the other team used kilometres or litres.
well, anyway they didnt put enough fuel into that thingy.