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The Royal Society: Science in the Making

Unpublished paper, 'A method to ascertain the longitude at sea with or without chronometers' by Le Duc Duhamel

Reference number: AP/2/2

Date: early-mid 19th century

Description

Duhamel provides a theorem and proof of a new method to determine longitude when at sea, both with the help of a chronometer and without. The first two pages are an incomplete manuscript in English, containing primarily the theorem and proof, with the second two pages beginning in the middle of a French mansucript refuting four objections to Duhamel's methods.

Subject: Mathematics

Reference number
AP/2/2
Earliest possible date
early-mid 19th century
Physical description
Ink on paper
Page extent
6 pages
Format
Manuscript

Creator name

Le Duc Duhamel

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Citation

Le Duc Duhamel, Unpublished paper, 'A method to ascertain the longitude at sea with or without chronometers' by Le Duc Duhamel, early-mid 19th century, AP/2/2, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/ap_2_2/unpublished-paper-a-method-to-ascertain-the-longitude-at-sea-with-or-without-chronometers-by-le-duc-duhamel, accessed on 18 September 2024

Link to this record

https://makingscience.royalsociety.org/items/ap_2_2/unpublished-paper-a-method-to-ascertain-the-longitude-at-sea-with-or-without-chronometers-by-le-duc-duhamel

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  • Archived Papers

    Dates: 1768-1989

    The 'Archived Papers' collection is comprised of original manuscript scientific papers and letters submitted to the Royal Society which remained unpublished or were abstracted in the journal 'Proceedings of the Royal Society' published from 1830 onwards.

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