Image of one of the first practical photographic cameras. This Daguerreotype camera was built by La Maison Susse Frères in 1839, with a lens by Charles Chevalier. August 19 marks the 175th anniversary of the release of the first practical photographic process patent.
More information: http://www.worldphotoday.org/ (Image Source: Wikipedia.org )
Astronomical Calendar for 2014 August:
Link >>> http://buhlplanetarium4.tripod.com/astrocalendar/2014.html#aug
The current month's Astronomical Calendar can also be found on the cover page of the History of The Buhl Planetarium and Institute of Popular Science, Pittsburgh web site at this link:
Link >>> http://buhlplanetarium.tripod.com/#astrocal
Source: Friends of the Zeiss.
2014: 75th Year of Pittsburgh's Buhl Planetarium
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Send request to < spacewatchtower@planetarium.cc >..
gaw
Glenn A. Walsh, Project Director,
Friends of the Zeiss < http://buhlplanetarium.tripod.com/fotz/ >
Electronic Mail - < gawalsh@planetarium.cc >
About the SpaceWatchtower Editor / Author: < http://buhlplanetarium2.tripod.com/weblog/spacewatchtower/gaw/ >
SpaceWatchtower Blog: < http://spacewatchtower.blogspot.com/ >
Also see: South Hills Backyard Astronomers Blog: < http://shbastronomers.blogspot.com/ >
Barnestormin: Writing, Essays, Pgh. News, & More: < http://www.barnestormin.blogspot.com/ >
SPACE & SCIENCE NEWS, ASTRONOMICAL CALENDAR:
< http://buhlplanetarium.tripod.
Twitter: < https://twitter.com/spacewatchtower >
Facebook: < http://www.facebook.com/pages/
Author of History Web Sites on the Internet --
* Buhl Planetarium, Pittsburgh:
< http://www.planetarium.
* Adler Planetarium, Chicago:
< http://adlerplanetarium.
* Astronomer, Educator, Optician John A. Brashear:
< http://johnbrashear.tripod.com >
* Andrew Carnegie & Carnegie Libraries:
< http://www.andrewcarnegie.
* Civil War Museum of Andrew Carnegie Free Library:
< http://garespypost.tripod.com >
* Duquesne Incline cable-car railway, Pittsburgh:
< http://inclinedplane.tripod.
* Public Transit:
< http://andrewcarnegie2.tripod.
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