Browse Items (11 total)

  • Collection: Elizabeth Langdon Williams

Letter from Elizabeth Williams to Percival Lowell, August 1, 1913

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Letter from Elizabeth Williams to Percival Lowell discussing least square solutions.

Telegram from Elizabeth Williams to Percival Lowell, March 18, 1914

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Telegram from Elizabeth Williams to Percival Lowell discussing computations of Neptune and Planet X.

Letter from Elizabeth Williams to Wrexie Leonard, November 4, 1909

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Letter from Elizabeth Williams to Wrexie Leonard discussing a computational error in "Planets and Their Satellites."

George Hall Hamilton and Elizabeth Williams

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George Hall Hamilton and Elizabeth Williams

Elizabeth Williams with relatives in the early 1900s

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Elizabeth Williams with Ursula Louise Ring and George Hall Hamilton

Letter from Elizabeth Williams to Johnson O'Connor, 1917

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Letter from Elizabeth Williams to Johnson O'Connor discussing coordinates of Jupiter's fifth moon (Amalthea).

Letters between Elizabeth Williams and Thomas Gill regarding least squares and machine computation, 1921

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Two letters between Elizabeth Williams and Thomas Gill discussing the publication of a method for adapting least squares to machine computation.

Newspaper clipping about Elizabeth Williams at MIT's commencement ceremony, 1903

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Newspaper account of Elizabeth Williams' speech at MIT's commencement and her studies in math and physics at the school.

Trans-Neptunian planet (Planet X) computations by Elizabeth Williams

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Trans-Neptunian planet (Planet X) computations by Elizabeth Williams, who worked in Percival Lowell's Boston office as a computer, i.e. a person who manually made calculations.

Letter from Elizabeth Williams to Percival Lowell discussing Planet X calculations

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Letter from Elizabeth Williams to Percival Lowell discussing mathematical calculations of Planet X and Uranus. Williams worked in Lowell's Boston office for many years as a computer, making calculations associated with Lowell's search for Planet X.