Quote Originally Posted by Roger Cole View Post
I'm thinking of re-calibrating my car speedometer in furlongs per fortnight...
NO, NO.Furlongs are nowhere near accurate enough. You need to sub divide into Rods, Poles and Perches. Chains are handy when measuring out the distance between wickets on a cricket pitch and never go to sea without being able to work out distance in cables

As the late Nelson's cabin boy I have to study all such things. Such accuracy and simplicity in measurement gave us victory at Trafalgar a couple of years ago.