BIB_ID
336999
Accession number
MA 4725.21
Creator
Einstein, Albert, 1879-1955.
Display Date
[1915 Feb. 3].
Credit line
Gift of Mr. Horace Wood Brock, Mr. John Biddle Brock, and Ms. Hope Brock Winthrop, in loving memory of their parents, Horace Brock (1918-1981) and Hope Distler Brock (1908-1988), 1991.
Description
1 item (1 p.) ; 27.7 cm
Notes
Date of writing and place of writing from published letter.
Part of a collection of letters from Albert Einstein to the German astronomer Erwin Finlay Freundlich. Letters in this collection have been described individually in separate catalog records; see collection-level record for more information (MA 4725.1-25).
Writtten on the letterhead of Louis Dreyfus & Cie, but Einstein has crossed through the headings.
Part of a collection of letters from Albert Einstein to the German astronomer Erwin Finlay Freundlich. Letters in this collection have been described individually in separate catalog records; see collection-level record for more information (MA 4725.1-25).
Writtten on the letterhead of Louis Dreyfus & Cie, but Einstein has crossed through the headings.
Provenance
Mr. Horace Wood Brock, Mr. John Biddle Brock, and Ms. Hope Brock Winthrop.
Summary
Following up on a conversation from the previous day; saying that the "following idea occurred to me that may not be new to you. If a spectroscopic binary star exists, both components of which provide sharply observable separate spectral lines, then the mass of both components can be obtained to a certain degree of accuracy;" elaborating on this hypothesis; asking for his opinion.
Catalog link
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