Re: more heat!

[Huw Powell <human@nh.ultranet.com>]

> You sure Jim?  I thought the conversion was F=(9/5*C)+32.  The lines
> intersect at 212F=100C.  212F=(9/5*100C)+32 is true so 45F=(9/5*7C)+32.

Whew!

you're not converting two numbers that refer to the same temp, you're
comparing the *size* of the degrees.  IE the difference between the
slopes over a given interval.

F degrees are 5/9 the size of C degrees.  The F scale is also shifted 32
degrees off the origin, hence the "+ or -32" in the conversion.  Doesn't
apply to converting deltas.

7 deg C does equal about 45 deg F (and 280 K).  But a 7 degree C change
= a 13 degree F change.

clear as mud yet?

-- 
Huw Powell

http://www.thebook.com/human-speakers

82 Audi Coupe; 85 Coupe GT
http://www.nh.ultranet.com/~human