Re: Calculating azimuth of sunrise and sunset from present back 25, 000 years

[Kevin Karney]

To get a small indication of the variation that occurs over long periods of 
time, you could try the excellent, easy to use and free Horizons program from 
JPL-NASA. It will take you back to 3000 BC. That's a step on the way to 25000 
years.

The program has a good web interface. Just google JPL Horizons to find it.

Best regards
Kevin Karney
Freedom Cottage, Llandogo, Monmouth, NP25 4TP
Phone 01594 539 595. Mobile 07595 024 960

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

Johann Engelbrecht

[Schechner, Sara]

Does anyone have a copy of the following article or booklet?

Fischer, Karl Adolf Franz. 1963. Die Sonnenuhrmacher Engelbrecht in Beraun ; 
and Eine Sonnenuhr von Johann Engelbrecht.
NUZ. Neue Uhrmacher-Zeitung Alte Uhren. 14-17.

If so, could you scan it for me?  Thanks!
Sara

Sara J. Schechner, Ph.D.
David P. Wheatland Curator of the Collection of Historical Scientific 
Instruments
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.edumailto:sche...@fas.harvard.edu
http://www.fas.harvard.edu/~hsdept/chsi.html

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