Bill Hooper wrote in USMA 19356:
>Any gven number of pounds always has the same number of kilograms of mass IF >we remain in the same gravitational conditions (e.g. on surface ot planet >Earth) and IF we do not require extreme accuracy (only to the nearest >quarter pound or tenth of a kilogram). Both conditions are expected for most >such devices described here. Why IF? The pound is legally defined as a unit of mass. Joseph B.Reid 17 Glebe Road West Toronto M5P 1C8 TEL. 416-486-6071
