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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: The ultimate celestial navigation time piece
From: Bill Lionheart
Date: 2017 Feb 23, 08:38 +0000
From: Bill Lionheart
Date: 2017 Feb 23, 08:38 +0000
I think we have been through this discussion before (see archives) .. the most readily obtainable solution is a stop watch designed for car rallies that "freezes" clock time. I did actually make an Arduino sketch that freezes and replays a real time clock with this intention. What I didnt do is make a nice case for it, so it would fit on my sextant with a nice button. Bill On 23 February 2017 at 02:38, Brad Morriswrote: > Ed > > The feature is called rattrapante (stop watch, then recover regular time). > > This horological feature can be part of a mechanical watch, but tends to > drive the watch out of the "affordable" range. > > A rattrapante feature is trivial for a digital watch, yet it retains little > of the allure and mystery of the mechanical feature. > > Brad > > On Feb 22, 2017 9:09 PM, "Ed Hlywa" wrote: >> >> I see that the function of the "Pushers" are still To_Be_Deterimed. I hope >> one of them will be a "Stop Clock" function. You know.... press the button >> and the time of day freezes so you can jot down the time of your sight. >> Press it again and the current and correct time resumes. >> >> BTW Do any of our inexpensive Casio/Timex watches have this function? >> "Stop Clock" not "Stop Watch." >> >> > > -- Professor of Applied Mathematics http://www.maths.manchester.ac.uk/bl