NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: The lost expedition of La Perouse
From: Alexandre Eremenko
Date: 2005 Jun 9, 16:42 -0500
From: Alexandre Eremenko
Date: 2005 Jun 9, 16:42 -0500
I had the same impression from their broshure I have, though they did not say directly that they invented or introduced it and when. The broshure is of early 40-s if I remember correctly. The same company often advertized their "Patented infinite screw", which (as george explained to us) was a predecessor of the modern drum. Alex. On Thu, 9 Jun 2005, Fred Hebard wrote: > My recollection is that micrometer drum sextant was developed by Heath, > shortly after World War I. I don't have documentation for this > recollection, however. > > Fred
