[pbs] converting ºC to ºF or ºF to ºC
Adam Fikso
adam14113 at ameritech.net
Tue Feb 10 14:18:44 EST 2009
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?
----- Original Message -----
From: "David Ehrlich" <idavide at sbcglobal.net>
To: "Pacific Bulb Society" <pbs at lists.ibiblio.org>
Sent: Tuesday, February 10, 2009 1:05 PM
Subject: Re: [pbs] converting ºC to ºF or ºF to ºC
Well Adam, yes and no. Do the arithmetic yourself; you'll find that your
adding or subtracting 32 before or after multiplying or dividing by
nine-fifths is much more difficult to remember and yet gives the same result
as my easy-to-remember symmetric formula. My formula is based on a
mathematic result, namely that when a domain is mapped into itself 1-to-1,
there will be a fixed point. In the case of Franenheit and Celsius, that
point is -40°.
________________________________
From: Adam Fikso <adam14113 at ameritech.net>
To: Pacific Bulb Society <pbs at lists.ibiblio.org>
Sent: Monday, February 9, 2009 2:36:18 PM
Subject: Re: [pbs] converting ºC to ºF or ºF to ºC
° David? Isn't the conversion formula supposed to be 5/9ths or 9/5ths +
or - 32--not 40.? That's what I remember from Berkeley High School, and U
of C.
A little trick I learned in Hight School:
Add 40º
multiply by 5/9 or 9/5, depending upon which way you want to go
Subtract 40º
This rule is far easier to remember than any other.
_______________________________________________
pbs mailing list
pbs at lists.ibiblio.org
http://lists.ibiblio.org/mailman/listinfo/pbs
http://pacificbulbsociety.org/pbswiki
More information about the pbs
mailing list