File:On the Determination of the Index of Refraction of Glass for the the Electric Ray Fig. 1.png

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Summary

Description
English: Diagram in research paper on radio research
Date
Source http://rspl.royalsocietypublishing.org/content/62/379-387/293.full.pdf+html
Author w:Jagadish Chandra Bose

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This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer.


This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.

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