>>Again: has anybody ever measured (literally) 0 of anything anywhere, with >>the required precision? > > I have zero orangutans.. It's probably easier to measure 0 orangutans than it is to measure 0 V (or 0 Ohms). You can think of it as the first stage in the process. Once you get there, please let me know :) -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu