6 Jul
2012
6 Jul
'12
8:47 p.m.
On Fri, 6 Jul 2012, Tony Duell wrote:
Not a rhyme, but something I still use to covnert
temperatures from
celsius to 'the understandable scale' (as one weatherman put it) is
'double it and add 30'. No, I don't use that whn calibrating a
thermocouple, or for colour photographic procesisng, or.. but for the sort
of temperatures used i neather forcasts it's accurate enough and is
trivial to do in your head.
Damn!
All this time, I've been multiplying by 1.8 and adding 32; no wonder I've
been getting it wrong!
In elementary school (5th grade), the teacher the book said, PI is about
3.14 or 22/7.
The teacher insisted that that meant that it was about 3.14, and exactly
22/7.
I got into a LOT of trouble for arguing.
--
Grumpy Ol' Fred cisin at xenosoft.com