If you're looking for a really interesting topic to read about, the development of an accurate ship-board clock is really fascinating! And it wasn't done overnight!

Lee  K9WRU
----- Original Message ----- From: "Chris Albertson" <[email protected]> To: "Discussion of precise time and frequency measurement" <[email protected]>
Sent: Tuesday, January 24, 2012 10:36 AM
Subject: Re: [time-nuts] establishing your position w/o gps


On Tue, Jan 24, 2012 at 3:16 AM, Attila Kinali <[email protected]> wrote:
On Tue, 24 Jan 2012 11:04:08 +0000
"Poul-Henning Kamp" <[email protected]> wrote:

In message <[email protected]>, Attila Kinali w
rites:

>All this talk about telling the time using stars or the sun made me >wonder
>how did people tell what position their telescopes had back in the days
>before GPS?

Sailingships and trade was what pushed this.



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