[SEL] NC or NF thread

[Arnie Fero]

Hi Curt,

THAT'S why Ron's science classes were so popular!!!  The teaching
profession lost one of its best when Ron retired!!!

See ya,  Arnie

On Fri, 15 Apr 2005, Curt wrote:

> What a neat mechanical device! I'd never seen this. Your depth of
> knowledge never ceases to amaze me.
>
> MaytagTwin at aol.com wrote:
>
> >That sounds like a machinist's version of a Chinese windlass, also called
> >the differential windlass which is a simple but powerful means of increasing
> >leverage.
> >(http://yahooligans.yahoo.com/reference/dictionary/entries/64/d0216400.html)