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I think you missed John's point._______________________________________________
A temperature of 20 C corresponds to a temperature of 68 F.
A temperature-change of 20 C corresponds to a temperature-change of 36
F.
So, the advertisement incorrectly used the ideas of temperature and
temperature-change interchangeably.
Oren Quist
South Dakota State
-----Original Message-----
From: Forum for Physics Educators [mailto:PHYS-L@list1.ucc.nau.edu] On
Behalf Of Bernard Cleyet
Sent: Wednesday, July 06, 2005 11:01 AM
To: PHYS-L@LISTS.NAU.EDU
Subject: Re: temperature units, was Re: Animated Math - comments
Oh!
bc, who thought the discussion was about units, not arithmetick
Folkerts, Timothy J wrote:
Thanks for the chuckle, John
=20
Tim F
=20
=20
(It must be too early in the morning for bc :-) On a thermometer, 20=
C corresponds to 68 F, but a difference of 20 C is a difference of o=
nly 20*(9/5) =3D 36 F)