NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Timing Lunars with a Rock
From: Alexandre Eremenko
Date: 2005 Jul 18, 10:40 -0500
From: Alexandre Eremenko
Date: 2005 Jul 18, 10:40 -0500
There is also a time-tested device called sandglass:-) As I understand sandglasses was used on the ships together with a log to measure the speed. (And to measure the time in general, in Columbus times). I suppose a sandglass has at least the same precision as a crude pendulum discussed above. Alex. On Mon, 18 Jul 2005, Henry C. Halboth wrote: > With a little practice, counting "and 1 - and 2 - and 3, etc." will > really serve the same purpose. Before I could afford a stop watch the > time between sight and chronometer reading was often accounted for in > this manner. Not very precise sounding, but it really does the trick. > > Henry >
