I was at least half serious about that. The need for accurate and precise scientific measuring instruments boomed during the Age of Enlightenment. And that took some really skilled craftsman (or a scientist who could roll his own). Sure, Tycho was great at building his huge quadrants, and if you believe what they say about the Antikythera mechanism, there were obviously skilled "machinists" BC. The first slide rules were hand-made. Later, someone made the (woodworking) machine that automated that process. You can get recursive thinking about these things ... who made the machines that made the first lathe, or drill press, or hydraulic press? And how were those machines made? You can't cast some types of parts. I guess the "Woodworking Era" actually started when Ogg picked up the first stick and sharpened a point on it. :) Dan Heim On 11/12/2011 7:49 PM, DBogan3220@xxxxxxx wrote: > The Woodworking era, ha ha > > Dwight > > > In a message dated 11/12/2011 7:46:58 P.M. US Mountain Standard Time, > dan@xxxxxxxxxxxxx writes: > And we would not have slide rules if it were not for the Woodworking Era > ... of course, ya gotta throw in some logarithms too. :) > > Dan Heim > > On 11/12/2011 2:26 PM, David Burgess wrote: > >> Maybe. But always remember that we would not have equipment like that if >> > it > >> were not for the Slide Rule Era...... >> >> -----Original Message----- >> From: Tom Polakis >> Sent: Saturday, November 12, 2011 11:54 AM >> To: az-observing@xxxxxxxxxxxxx >> Subject: [AZ-Observing] Re: Oscilloscope >> >> >> > -- > See message header for info on list archives or unsubscribing, and please > send personal replies to the author, not the list. > > > > -- > See message header for info on list archives or unsubscribing, and please > send personal replies to the author, not the list. > > > > -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.