NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Instrument for solving spheric
From: Alexandre Eremenko
Date: 2012 Apr 26, 23:13 -0400
From: Alexandre Eremenko
Date: 2012 Apr 26, 23:13 -0400
Well, There were probably very many such inventions:-) And I suppose most of them were never made in metal and tried. It seems that some authors never even asked themselves what will be the accuracy of their devices and how hard will it be to make one. Mathematically, you can arrange many pivots and arms and circles to solve any (algebraic or trigonometric or differential) equation, no matter how complicated. The question is whether the thing will work in the real world. It is like artificial horizons. You can see a lot of them in the book by Ifland Taking the stars. Most of them are totally useless, some look simply ridiculous. Alex. On Thu, 26 Apr 2012, G Becker wrote: > > Does this device have the same function as a torquetum? > > http://www.google.com/patents/US3628250 > ---------------------------------------------------------------- > NavList message boards and member settings: www.fer3.com/NavList > Members may optionally receive posts by email. > To cancel email delivery, send a message to NoMail[at]fer3.com > ---------------------------------------------------------------- > > > > > : http://fer3.com/arc/m2.aspx?i=119284 > > >
