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Show more111 typed and handwritten letters between Charles F., Sr., and the US Bureau of Standards. In 1924 and 1925 Brush discusses his theory of gravitation, in 1926, 1927, 1928 and 1929 Brush and the Bureau collaborate on research in minerals that spontaneously generate heat, a project Brush funds. Brush correlates his own findings to his theory of gravitation, and hopes the Bureau can support his findings with their own. Includes Bureau of Standards pamphlet from 1928
Charles F. Brush, Sr., Papers
Series 1: Correspondence
Subseries 3: Business and Professional (1876-1931)
Box 4
Folder 2
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Charles F. Bru
Show moreHandwritten laboratory notes by Charles F. Brush on change of weight experiments which are follow up experiments to free fall experiment
Charles F. Brush, Sr., Papers
Series 2: Laboratory Notes (1880-1929)
Box 8
Folder 1
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Show more7 Typed and handwritten letters between W. W. Keen and Charles F., Sr., written in 1924 and 1928, in the first correspondence Keen requests money from Brush, which Brush feels he cannot afford at the time, Keen later writes to congratulate Brush on receiving the Franklin Institute Medal in 1928, and again discussing Brush's theory of gravity, about which Keen recommends reading Millikan's articles and Brush agrees. Final letter from Keen regarding establishment of Brush Foundation, particularly his familiarity with Dr. T. Wingate Todd. 2 typed letters between Sarah Starr and Brush, written in 1928, in which Starr describes the creation of a Keen Fund to which Brush promises 1000 dollars.
Charles F. Brush, Sr., Papers
Series 1: Correspondence
Subseries 3: Business and Professional (1876-1931)
Box 4
Folder 16
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Show moreTwo reprints of the article by Charles F. Brush, Sr. entitled, Some New Experiments in Gravitation, fourth paper, from the Proceedings of the American Philosophical Society, Volume 63, Number 1, dated 1924. Originally read April 26, 1924. Brush continues with experiments regarding the falling velocities of different metals in relation to his kinetic theory of gravitation
Charles F. Brush, Sr., Papers
Series 7: Articles by Charles F. Brush (1879-1929)
Box 26
Folder 9
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Show more3 Typed and handwritten letters between Sidney Stevens and Charles F., Sr., regarding theories each held concerning the ether as a medium for light and gravitation. Includes letter from Stevens to Leigh Page describing Brush's paper on gravitation which Stevens felt would satisfy Page's mathematical issues with ether.
Charles F. Brush, Sr., Papers
Series 1: Correspondence
Subseries 3: Business and Professional (1876-1931)
Box 5
Folder 18
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