a: When it is one of the standard sister copies of "Le Grand K".
It seems that there is a drift in weights and even "Le Grand K" has been effected though less then its sister copies. Ludicrous as it may sound on the surface, this can have serious ramifications and so it is time to decide on a new global standard.
"Those who would give up essential liberty to purchase temporary safety deserve neither liberty nor safety" - Benjamin Franklin
Interesting that the kilo is still defined in terms of something that is subject to change. All other base units are ultimately defined by fundamental physical constants.
What really amazes me is that after having discovered the possible drift 30 years or so ago, they are only just starting to talk about having to set another global standard.
"Those who would give up essential liberty to purchase temporary safety deserve neither liberty nor safety" - Benjamin Franklin
q: When is a kilo not a kilo?
Posted - 10/11/2007 : 07:30:43
