wrote in message
oups.com...

F.L. Whiteley wrote:
"Pete Brown" wrote in message
...

Hate to show my ignorance but what is a JSW calculator?
Russ


a circular, pre-silicon, slide rule glide calculator aka a
prayer wheel.


--

Peter D. Brown
http://home.gci.net/~pdb/
http://groups.yahoo.com/group/akmtnsoaring/

AKA wiz(ard) wheel

A circular slide rule developed (invented?) by John S Williams (rather like
the MacCready Ring being invented by Dr Paul McCready). Probably best
considered as an early form of glide computer.

Keith