Re: Horary machine

2016-02-27 Thread Fred Sawyer 
This is a print from Pluche's Spectacle de la Nature.  For an English
translation of this book, see

https://books.google.com/books?id=FOI4MAAJ=horary+machine=gbs_navlinks_s

The machine is described on p. 212 and following.

Fred Sawyer


On Sat, Feb 27, 2016 at 9:14 AM, Dan-George Uza 
wrote:

> Hello!
>
> An old print depicting a "horary machine" is being sold on E-bay. Can you
> please tell me what it is and how it works?
>
> [image: Inline image 2]
>
>
> http://www.ebay.com/itm/1766-PLUCHE-Horary-Machine-Ring-Dial-Sundial-Antique-Engraving-/291691633308?hash=item43ea2d1a9c:g:9nUAAOxyrrpTgZSe
>
> Thanks!
>
> Dan
>
> ---
> https://lists.uni-koeln.de/mailman/listinfo/sundial
>
>
>
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https://lists.uni-koeln.de/mailman/listinfo/sundial

RE: Horary machine

2016-02-27 Thread Schechner, Sara 
It looks to me like some kind of decllinatory for marking sundials.

Sara J. Schechner, Ph.D.
David P. Wheatland Curator of the Collection of Historical Scientific 
Instruments
Lecturer on the History of Science
Department of the History of Science, Harvard University
Science Center 251c, 1 Oxford Street, Cambridge, MA 02138
Tel: 617-496-9542   |   Fax: 617-496-5932
sche...@fas.harvard.edu  | @SaraSchechner
http://scholar.harvard.edu/saraschechner
http://chsi.harvard.edu/



From: sundial [mailto:sundial-boun...@uni-koeln.de] On Behalf Of Dan-George Uza
Sent: Saturday, February 27, 2016 9:15 AM
To: sundial@uni-koeln.de
Subject: Horary machine

Hello!

An old print depicting a "horary machine" is being sold on E-bay. Can you 
please tell me what it is and how it works?

[Inline image 2]

http://www.ebay.com/itm/1766-PLUCHE-Horary-Machine-Ring-Dial-Sundial-Antique-Engraving-/291691633308?hash=item43ea2d1a9c:g:9nUAAOxyrrpTgZSe

Thanks!

Dan
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Horary machine

2016-02-27 Thread Dan-George Uza 
Hello!

An old print depicting a "horary machine" is being sold on E-bay. Can you
please tell me what it is and how it works?

[image: Inline image 2]

http://www.ebay.com/itm/1766-PLUCHE-Horary-Machine-Ring-Dial-Sundial-Antique-Engraving-/291691633308?hash=item43ea2d1a9c:g:9nUAAOxyrrpTgZSe

Thanks!

Dan
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https://lists.uni-koeln.de/mailman/listinfo/sundial