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Charles F. Brush, Sr., Papers
Series 2: Laboratory Notes (1880-1929)
Box 8
Folder 7
Show more54 typed and handwritten letters between the American Philosophical Society to Charles F., Sr., written in the years 1927, 1928 and 1929, informing Brush of meeting dates and locations, setting lunch appointments, discussion Society matters and especially regarding efforts to publish his works on gravitation through the Society. Includes several Society building and endowment fund bulletins and 1929 annual meeting program
Charles F. Brush, Sr., Papers
Series 1: Correspondence
Subseries 3: Business and Professional (1876-1931)
Box 4
Folder 1
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Show moreFive typed letters and telegrams, one pamphlet, regarding Brush and his relationship with the American Society of the French Legion of Honor, including telegram communications about Brush attending the funeral of Myron T. Herrick, as well as telegrams regarding the nomination of Brush for director of the society. Pamphlet about membership in the society
Charles F. Brush, Sr., Papers
Series 1: Correspondence
Subseries 3: Business and Professional (1876-1931)
Box 3
Folder 13
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Charles F. Brush, Sr., Papers
Series 8: Other Papers (1842-1960)
Show more3 typed copies of Last Will and Testament of Charles F., Sr., one from1925, 2 from 1929
Charles F. Brush, Sr., Papers
Series 8: Other Papers (1842-1960)
Subseries 3: Legal (1876-1929)
Box 28
Folder 7
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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. Brush, Sr., Papers
Series 2: Laboratory Notes (1880-1929)
Box 8
Folder 6
Show more2 Typed letters, from Charles F., Sr., to W. Campbell and from Robert Aitken to Charles F., Sr., Brush asking Campbell about telescope sizes and astronomical photography, and Aitken thanking Brush for reprint of article concerning surface temperature of Mars.
Charles F. Brush, Sr., Papers
Series 1: Correspondence
Subseries 3: Business and Professional (1876-1931)
Box 4
Folder 4
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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 moreMost of the letters here were written between Charles F. Brush, Sr., and his family members, most notably his son, Charles F. Brush, Jr., and his son’s wife, Dorothy Brush (Walmsley). Unfortunately, not much correspondence exists before 1910. In the letters (dated between 1911 and 1929) between Brush, Sr., his son, and daughter-in-law, they discuss their lives in Cleveland and elsewhere, their travels, scientific experiments, school, and grandchildren. The correspondence also documents how Dorothy and Brush, Sr., coped with the death of Charles F. Brush, Jr., in 1927. The correspondence files also highlight Brush’s efforts to prove his theory of gravitation. This theory suggested that the behavior of gravity could be explained by the action of ether. Ether was thought to be a gas which many believed occupied space in which light traveled. Thus, Brush attempted to prove the existence of ether. After many years of conducting his own experiments in his Euclid Avenue home’s basement laboratory to prove the existence of ether, Brush contracted scientists at the U.S. Bureau of Standards and General Electric to further his work. As the correspondence showed, the experiments done at the U.S. Bureau of Standards and General Electric could not prove, to their satisfaction, the existence of ether.
Charles F. Brush, Sr., Papers
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Show moreThe laboratory notes deal with his storage battery experiments, as well as his later quest to prove his theory of gravitation. Records of note include a 240 page journal which Brush attempts to recount the details of his early experiments in developing the original arc lighting technology in the 1870s.
Charles F. Brush, Sr., Papers
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Show moreArranged chronologically, this series contains reprints, as well as some typed and handwritten manuscripts, of scientific articles written (and published) by Brush over a 50 year time span. Most articles deal with Brush’s experiments to support his theory of gravitation, though, there are a few articles that discuss his groundbreaking work with the arc light. Many items were damaged by fire.
Charles F. Brush, Sr., Papers
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Charles F. Brush, Sr., Papers
Series 13: Photographs and Drawings (1880s-1954)
Bo
Show moreBlack and white photograph of experiment. Taken by unknown photographer
Charles F. Brush, Sr., Papers
Series 13: Photographs and Drawings (1880s-1954)
Box 39
Folder 5
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Charles F. Brush, Sr., Papers
Series 13: Photographs and Drawings (188
Show moreBlack and white photograph of scientific apparatus. Taken by unknown photographer
Charles F. Brush, Sr., Papers
Series 13: Photographs and Drawings (1880s-1954)
Box 39
Folder 5
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Charles F. Brush, Sr., Papers
Series 13: Photographs and Drawings (1880s-1954)
Box 39
Show moreBlack and white drawing of Fig. 5 weight used on Anniversary clock.
Charles F. Brush, Sr., Papers
Series 13: Photographs and Drawings (1880s-1954)
Box 39
Folder 5
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Charles F. Brush, Sr., Papers
Series 13: Photographs and Drawings (188
Show moreBlack and white photograph of scientific apparatus. Taken by unknown photographer
Charles F. Brush, Sr., Papers
Series 13: Photographs and Drawings (1880s-1954)
Box 39
Folder 5
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Charles F. Brush, Sr., Papers
Series 13: Photographs and Drawings (1880s-1954)
Box 39
Folder 5
Charles F. Brush, Sr., Papers
Series 13: Photographs and Drawings (188
Show moreBlack and white photograph of scientific apparatus. Taken by unknown photographer
Charles F. Brush, Sr., Papers
Series 13: Photographs and Drawings (1880s-1954)
Box 39
Folder 7
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Charles F. Brush, Sr., Papers
Series 13: Photographs and Drawings (1880s-1954)
Box 39
Folder 8
Charles F. Brush, Sr., Papers
Series 13: Photographs and Drawings(1880
Show moreBlack and white photograph of scientific apparatus. Taken by unknown photographer
Charles F. Brush, Sr., Papers
Series 13: Photographs and Drawings(1880s-1954)
Box 39
Folder 5
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Charles F. Brush, Sr., Papers
Series 13: Photographs and Drawings (1880s-1954)
Bo
Show moreBlack and white photograph of experiment. Taken by unknown photographer
Charles F. Brush, Sr., Papers
Series 13: Photographs and Drawings (1880s-1954)
Box 39
Folder 5
Show less