5 Mar
2013
5 Mar
'13
8:35 p.m.
On 3/5/2013 4:29 PM, Fred Cisin wrote:
You do NOT need nor want Wikipedia for that!
Not good to become dependent:-)
Circumference is PI times diameter.
I should have checked the math. it isn't
pi circumference. It is a
spiral, not a circular scale. I didn't want to try to guess, or
calculate it because I didn't recall how many times it wrapped.
3 * 8 inches isn't the right number either.
Jim