Doheny Memorial Library, Los Angeles, CA 90089-0189 Public Domain. Release under the CC BY Attribution license--http://creativecommons.org/licenses/by/3.0/--Credit both “University of Southern California. Libraries” and “California Historical Society” as the source. Digitally reproduced by the USC Digital Library; From the California Historical Society Collection at the University of Southern California Send requests to address or e-mail given USC Libraries Special Collections specol@usc.edu
Description
Photographic portrait of Dr. Millikan and Dr. Cameron applying the lead sheild to an early form of electroscope, December 1930. At left, a man in a striped suit applies is visible fitting a shell to what appears to be a telescope eyepiece, while at right, a second man holds a second eyepiece. A number of electric boxes are connected in a chain on the table in front of them, leading to the first eyepiece at left. Writing on the photo identifies the lead shield as used for shutting out rays which would interfere with the observation of the comic ray.
Type
image
Format
2 photographs : photonegatives, b&w 13 x 18 cm. negatives (photographic) photographs
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