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- Fay, Richard D. (x)
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Show moreHandwritten letter from Richard D. Fay to Charles Brush, Sr., acknowledging receipt of Brush's third paper on Gravitation, and commenting on the ingredients used in the weight-mass ratio.
Charles F. Brush, Sr., Papers
Series 1: Correspondence
Subseries 2: Acknowledgments (1921-1929)
Box 3
Folder 1
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Charles F. Brush, Sr., Papers
Series 1: Corr
Show moreHandwritten letter from Richard Fay to Charles F., Sr., thanking Brush for sending latest gravitation paper
Charles F. Brush, Sr., Papers
Series 1: Correspondence
Subseries 2: Acknowledgments (1921-1929)
Box 2
Folder 13
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Show moreHandwritten letter from Richard Fay to Charles F., Sr., thanking Brush for latest gravitation paper and commenting on benefit of experimental proof over mathematical proof for experimental results
Charles F. Brush, Sr., Papers
Series 1: Correspondence
Subseries 2: Acknowledgments (1921-1929)
Box 2
Folder 14
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Show more7 Typed and handwritten letters between Charles F., Sr., and Richard Fay, in 1920 Brush asking Fay to attempt to put mathematical equations to his gravitation theory and Fay's equations, in 1925 and 1926 Fay writes with refined equations and new thoughts.
Charles F. Brush, Sr., Papers
Series 1: Correspondence
Subseries 3: Business and Professional (1876-1931)
Box 4
Folder 7
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