The 1920 Great Debate on the Scale of the Universe

Authored By Glenn A. Walsh *** Sponsored By Friends of the Zeiss
Electronic Mail: < greatdebate@planetarium.cc > *** Internet Web Site Cover Page: < http://www.planetarium.cc >
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2010 May

Between

Heber D. Curtis, who later in 1920 became Director, Allegheny Observatory, Pittsburgh
and
Harlow Shapley, who in 1921 became Director, Harvard College Observatory, Cambridge, Massachusetts

On 1941 November 19, Harlow Shapley gave the keyhote address at the dedication of the
10-inch Siderostat-type Refractor Telescope of the original
Buhl Planetarium and Institute of Popular Science (a.k.a. Buhl Science Center), Pittsburgh's science and technology museum from 1939 to 1991.

Descriptions of The Great Debate ---

SpaceWatchtower
(Centennial of Great Debate)

Henry Buhl, Jr. Planetarium and Observatory
(Pittsburgh Post-Gazette)

NASA - Details of The Great Debate

National Academy of Sciences

American Astronomical Society

American Institute of Physics

Pennsylvania State University

Wiz Science: Brief YouTube Video

Wikipedia.org

NASA - Links to Several Great Debates in Astronomy


More News Related to the Great Debate

Walsh, Glenn A. "100 Years Ago: Shapley Discovers True Magnitude of Milky Way & True Location of Earth in Galaxy." Blog-Post.
SpaceWatchtower 2018 Jan. 8.

Walsh, Glenn A. "75th Anniversary: America's 5th Public Observatory." Blog-Post.
SpaceWatchtower 2016 Nov. 19.
Harlow Shapley gave the keynote address at the dedication of the rather unique 10-inch Siderostat-type Refractor Telescope at the original Buhl Planetarium and Institute of Popular Science / Buhl Science Center, Pittsburgh's science and technology museum from 1939 to 1991.

Malerbo, Dan. "Let's Talk About: The Great Debate." Column.
Pittsburgh Post-Gazette 2010 April 22.
In 1920 Heber D. Curtis became Director of Pittsburgh's Allegheny Observatory, and
on 1941 November 19 Harlow Shapley gave the keynote address at the dedication of
Buhl Planetarium's 10-inch Siderostat-type Refractor Telescope.
Column author Dan Malerbo is Education Coordinator for the
Henry Buhl, Jr. Planetarium and Observatory at Pittsburgh's
Carnegie Science Center. He also served as a Planetarium Lecturer
at Pittsburgh's original Buhl Planetarium and Institute of Popular Science
(a.k.a. Buhl Science Center)
, the city's science and technology museum from 1939 to 1991.

Return to History of The Buhl Planetarium and Institute of Popular Science, Pittsburgh

Authored By Glenn A. Walsh *** Sponsored By Friends of the Zeiss
Electronic Mail: < greatdebate@planetarium.cc > *** Internet Web Site Cover Page: < http://www.planetarium.cc >
This Internet Web Page: < https://buhlplanetarium2.tripod.com/bio/greatdebate.html >
2010 May

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Internet Web Site Master Index for the History of
The Buhl Planetarium and Institute of Popular Science, Pittsburgh

Other Internet Web Sites of Interest

History of The Buhl Planetarium and Institute of Popular Science, Pittsburgh

History of Adler Planetarium and Astronomy Museum, Chicago

Astronomer, Educator, and Telescope Maker John A. Brashear

History of Andrew Carnegie and Carnegie Libraries

Historic Duquesne Incline cable-car railway, Pittsburgh

Disclaimer Statement: This Internet Web Site is not affiliated with the Andrew Carnegie Free Library,
Ninth Pennsylvania Reserves Civil War Reenactment Group, Henry Buhl, Jr. Planetarium and Observatory,
The Carnegie Science Center, The Carnegie Museums of Pittsburgh/Carnegie Institute, or The Carnegie Library of Pittsburgh.

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