I have to retract my stupid statement about fixed-point maps -- it's been decades since I did any mathematics. But in this case, -40 is still a fixed point. No relation to Erlich -- we spell our names differently, too. ________________________________ From: Adam Fikso <adam14113@ameritech.net> To: Pacific Bulb Society <pbs@lists.ibiblio.org> Sent: Tuesday, February 10, 2009 11:18:44 AM Subject: Re: [pbs] converting ºC to ºF or ºF to ºC Hello David. Maybe I see. Yes, -40 is the same temperature in both scales. But I think that I don't see it. Some aspects of simple math have always eluded me. Any relation to an Erlich who would be about 86-87 right now who went to the U of C Berkeley and was friends with Townsend Conover and Drs. Lanny (Ann) & and Pete Wilkins?