This is just the beginning! Our collection holds over 300 years of history, including rare newspapers, obituaries, marriage records, birth records, and so much more—most of which you won’t find anywhere else!
Sun Observation Breakthrough by Dr Hale Spurs Global Watching
Pasadena scientist Dr George Ellery Hale revolutionizes solar study with the spectrohelioscope and spectroheliograph enabling watching the sun in single wavelengths. His work at Mt Wilson and Yerkes Observatory leads to worldwide replicas and a new era of continuous solar observation using diffraction gratings and slitted spectroscopes.
MENTIONED IN THIS ARTICLE
Dante
Pasadena
California
George Ellergale
Carnegie Institution
Mr. Wilson Observatory
Hale
R. Hale
Astronomical Society of the Pacific
Dr. Hale
Massachusetts Institute of Technology
Chicago
Kenwood
University of Chics 10
Charles T.yerkes
Yerkes Observatory
Mt. Wilson Observatory
Council For National Defense
National Research Council
Allew
Son
Waa
California ‘Institute of “Technology
Ellery Hale
Atelescha
Caille & Spectroscope
Aly
Owever
George Ellery Hale