In article , MM
writes
On Sun, 15 May 2005 19:51:32 +0100, "Martin"
wrote:


Have you worked out how much 20 cubic metres of water weighs?

20 metric tonnes.

What conversion factor are you using?

It's inherent in the way the metric system is defined.
--
Kay
"Do not insult the crocodile until you have crossed the river"