On Wed, Jul 4, 2012 at 6:13 AM, Dave Angel <d...@davea.name> wrote: > On 07/03/2012 12:05 PM, Mark Lawrence wrote: >> If I go to the moon I will weigh 2st 10lb (if my sums are correct :) >> but the equivalent Frenchman will still be 86kg. I hereby put this >> forward as proof that the metric system is rubbish and we should >> revert back to imperial goodies. >> > > 86 kg is not a weight, it's a mass. So it doesn't depend on the local > gravity situation.
Indeed it is, as he says. But I believe he may be right in that 'stone' is a unit of weight. Hard to be sure, though, given that it's not an SI unit (for instance, the Wikipedia article text refers to weight, but its picture shows a man measuring mass). ChrisA -- http://mail.python.org/mailman/listinfo/python-list