On 11/08/2010, Jean-Louis Oneto <[email protected]> wrote: > Nevertheless, there is a mention (with picture) of "mine de plomb" (="lead > pencil") in the French version of Wikipedia: > http://fr.wikipedia.org/wiki/Mine_de_plomb > They were extensively used in Antiquity (Egyptians, Greeks and Roman). > But I don't think they have RoHS compliant problems ;-}
But the real question is, did they used to have a nice little pink useful eraser at the end of their pencils so they could clean up their PCBs back then? Steve > Jean-Louis Oneto > > ----- Original Message ----- > From: "Alan Melia" <[email protected]> > To: "Discussion of precise time and frequency measurement" > <[email protected]> > Sent: Tuesday, August 10, 2010 11:12 PM > Subject: Re: [time-nuts] Remove Pictic boards from envelopes > > >> Hi Jim ...being "ironic"...see the "smiley" >> Alan >> ----- Original Message ----- >> From: "jimlux" <[email protected]> >> To: "Discussion of precise time and frequency measurement" >> <[email protected]> >> 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 -- [email protected] >>> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>> and follow the instructions there. >> >> >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > -- Steve Rooke - ZL3TUV & G8KVD The only reason for time is so that everything doesn't happen at once. - Einstein _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
