>>>>>Or the fact that a UK pint is 20 ounces but a US pint is 16 ounces :)
>>>>
>>>>If only there were some standardized system of measurement that could be used worldwide so everyone would use the same units and values. ;)
>>>
>>>What can be more standard than a stone? A stone is a stone everywhere. You pick one off the ground and you know, with complete conviction, that you hold exactly one stone in your hand.
>>
>>
>>That is fine as long as that stone weighs exactly 1Kg (or 1000 grams) :)
>
>Which Kg
>
>http://www.livescience.com/26017-kilogram-gained-weight.html

Depends on whether the stone has dirt on it :)