[time-nuts] establishing your position w/o gps

[Azelio Boriani]

I've read the book by Dava Sobel "Longitude"... not technical but
interesting for me.

On Tue, Jan 24, 2012 at 6:05 PM, Lee Mushel <herbert3 at centurytel.net> wrote:

> 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" <
> albertson.chris at gmail.com>
> To: "Discussion of precise time and frequency measurement" <
> time-nuts at febo.com>
> 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 <attila at kinali.ch> wrote:
>>
>>> On Tue, 24 Jan 2012 11:04:08 +0000
>>> "Poul-Henning Kamp" <phk at phk.freebsd.dk> wrote:
>>>
>>>  In message <20120124115848.**312d60bd4fccce4f3e71c136@**kinali.ch<20120124115848.312d60bd4fccce4f3e71c136 at kinali.ch>>,
>>>> 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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