Hi Jim ...being "ironic"...see the "smiley" Alan ----- Original Message ----- From: "jimlux" <jim...@earthlink.net> To: "Discussion of precise time and frequency measurement" <time-nuts@febo.com> Sent: Tuesday, August 10, 2010 11:55 PM Subject: Re: [time-nuts] Remove Pictic boards from envelopes
> Alan Melia wrote: > > Pencil?? only us oldies know what that is....... it is surprising the "lead" > > pencil hasn't been banned under RoHS :-)) > > Alan G3NYK > > > > > > I don't know that "lead" (as in the element) has ever been used in > pencils.. I read a fascinating book on the history of the pencil a few > years back.. it described how graphite (the mines of Cumberland were > famous for graphite with good writing/drawing properties) was called > plumbago (lead ore) because chemical analysis didn't really exist and > the dense black substance seemed to resemble lead. > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.