Path: utzoo!attcan!uunet!mcsun!hp4nl!charon!jurjen From: jurjen@cwi.nl (Jurjen NE Bos) Newsgroups: comp.sys.handhelds Subject: Re: Units Problems... Message-ID: <2237@charon.cwi.nl> Date: 25 Sep 90 15:18:17 GMT References: <9682@ccncsu.ColoState.EDU> Sender: news@cwi.nl Lines: 27 jn190068@longs.LANCE.ColoState.EDU (Jay Lewis Nestle) writes: > > I was working on a simple heat transfer problem and was >using my 48SX. I was using C degrees, my answers seemed to be > enter 1 degree C twice then add them, the answer > is: 275.15 degrees C > This is clearly wrong: Either 275.15 K or 2 deg C Think about it. What does adding temperatures mean, anyway? For example, how much is 35,6 degrees F + 35,6 degrees F? a) 71.2 degrees F (because that's "logical") b) 39.2 degrees F (because 39.2 is 2 degrees C, and 4 degrees C is 39.2 F) c) 530.87 degrees F It is clear that the answer must be c) There is only ONE way to add temperatures: add the distances from the absolute zero. So the 48 was right, after all. -- | | "Never imagine yourself not to be otherwise than what | | Jurjen N.E. Bos | it might appear to others that what you were or might | | | have been was not otherwise than what you had been | | jurjen@cwi.nl | would have appeared to them to be otherwise." |