It is measured that way because of idiosyncracy. Boy!! Can`t wait till you yanks have to get on the metric bandwagon? I mean the GI`s already been there cause of the places they have been, and your scientists are already using metric. Only the common folk in the US don`t use it. And that is only because your polititicians are afraid to ask you about it. But simple, really, 10x10, and 10x10 and on and on it goes. Or, maybe some one can explain to me how some old english king that had his foot meausred makes more sense?? Not likely? :wow: