Hi,
Some more interesting information on the Boy Scouts Sun Watch.
http://www.vintagerecipeblog.com/2016/03/the-ansonia-sunwatch-instructions.html?m=1
Note that the gnomon is not a string.
Regards,
Roderick Wall.
----- Reply message -----
From: "rodwall1...@gmail.com" <rodwall1...@gmail.com>
To: "Michael Ossipoff" <email9648...@gmail.com>, "Schechner, Sara"
<sche...@fas.harvard.edu>
Cc: "Sundial List" <sundial@uni-koeln.de>
Subject: Dyptich sundial - help!
Date: Sun, Aug 12, 2018 7:31 AM
Hi,
For those who are interested. A Boy Scout Sun Watch.
https://m.ebay.com.au/itm/RARE-1920-1922-ANTIQUE-BOY-SCOUTS-SUN-WATCH-COMPASS-ANSONIA-Co-NY/132733705686?hash=item1ee78b9dd6%3Ag%3AXFsAAOSw0lVa7z7H&_nkw=sun+watch+boy+scout&_from=R40&rt=nc
Regards,
Roderick Wall.
----- Reply message -----
From: "Michael Ossipoff" <email9648...@gmail.com>
To: "Schechner, Sara" <sche...@fas.harvard.edu>
Cc: "Sundial List" <sundial@uni-koeln.de>
Subject: Dyptich sundial - help!
Date: Sat, Aug 11, 2018 7:38 AM
Sara and John--
But it's said that the hour-lines for Babylonian, Italian, and co-Italian
hours are straight lines, as they are on all the other dials that I've seen
that have Babylonian &/or Italian hours.
Michael Ossipoff
On Fri, Aug 10, 2018 at 4:37 PM, Schechner, Sara <sche...@fas.harvard.edu>
wrote:
> I am camping at Stellafane with little connection, so will keep this brief
> until I return to civilization!
>
> The gnomon is adjustable for different latitudes. The choice determines
> the correct horizontal scale to use around the compass. The 2 pin gnomon
> scaphe sundial are for finding Italian and Babylonian (or Nuremberg
> hours). The instrument with the spinning pointer is a wind vane.
> The instrument is made in Nuremberg in the early 17th century.
>
> Sara
>
> Sent from my iPhone
>
> On Aug 10, 2018, at 12:48 PM, Michael Ossipoff <email9648...@gmail.com>
> wrote:
>
> Yes, the Boy Scouts of America at least used to sell a Compass-Oriented
> Dyptich dial with several concentric rings, each having different
> hour-lines, and with its string-gnomon adjustable for latitude, with
> several attachment-points on the vertical surface. I think it accommodated
> 3 latitudes. The hour-line rings were rectangular, it seems to me.
>
> Someone at this forum designed a universal Horizontal-Dial whose hour
> lines were curved lines originating from the gnomon-string's
> base-attrachment, with latitude-labeled concentric circles telling where to
> read the hour lines for the various latitudes. ...and of course with the
> string-gnomon slidable in a vertical slot in the vertical surface.
>
> Michael Ossipoff
>
>
>
> On Fri, Aug 10, 2018 at 4:22 AM, Dan-George Uza <cerculdest...@gmail.com>
> wrote:
>
>> Dear all,
>>
>> I've recently found this piece in a museum near me and I need your help
>> in dating it.
>>
>> Why are the hour marks offset? I suspect a correction for latitude. And
>> what do the two small circular dials on the bottom measure?
>>
>> Also what would be the purpose of the circular shape containing the
>> alidade? I suspect it has something to do with the winds.
>>
>> Any info will be highly appreciated.
>>
>> Thank you,
>>
>> Dan Uza
>>
>>
>>
>>
>> ---------------------------------------------------
>> https://lists.uni-koeln.de/mailman/listinfo/sundial
>> <https://urldefense.proofpoint.com/v2/url?u=https-3A__lists.uni-2Dkoeln.de_mailman_listinfo_sundial&d=DwMFaQ&c=WO-RGvefibhHBZq3fL85hQ&r=7ZsgDX5inZSMERqhZEQacOtdADP0iy6-YB7dx6Z_mVo&m=3-DALhUvBQJn8P9cKR9FHS3EG06h7iYhIPEnqd_W0kI&s=ifZ07QqBi_JWsaekGzvK_IWYmTdGpp6kYF_t_p0_shI&e=>
>>
>>
>>
> ---------------------------------------------------
> https://lists.uni-koeln.de/mailman/listinfo/sundial
>
>
---------------------------------------------------
https://lists.uni-koeln.de/mailman/listinfo/sundial
