North American Fruit Explorers mailing list at ibiblio

["Stephen Sadler" <Docshiva@Docshiva.org>]

Yep, that's where they 'cross'.  Rounded, or limiting oneself to significant
figures, 39 and 41 will also work out the same; but if you get down to
tenths, 40's the only temperature doppelganger. 

Stephen Sadler, Ph.D.
USDA 9, AHS heat zone 8, 
Sacramento CA - Mediterranean climate

-----Original Message-----
From: nafex-bounces@lists.ibiblio.org
[mailto:nafex-bounces@lists.ibiblio.org] On Behalf Of Gary Woods
Sent: Tuesday, May 24, 2005 6:38 AM
To: North American Fruit Explorers
Subject: Re: [NAFEX] celcius vs fahrenheit

On Mon, 23 May 2005 21:26:07 -0700, you wrote:

>My ruler with the Celcius and Fahrenheit scale doesn't go below -22°F/-31°C
so I
>had to guess.

Actually, then cross at -40.

c/(f-32)=5/9

If f=40
c/(-40-32)=5/9
c=(5/9)(-72)
c=-40

And to think I've been wasting brain cells on that all these years...