Article ID: CBB718271944

Monteiro da Rocha and the international debate in the 1760s on astronomical methods to find the longitude at sea: his proposals and criticisms to Lacaille’s lunar-distance method (2022)

unapi

In the 1760s, the international debate on the solution to determining longitude at sea is at its acme. Two solutions emerge, the mechanical and the astronomical ones. The Portuguese mathematician and astronomer José Monteiro da Rocha (1734–1819) is well aware of that debate. For him, Harrison’s No. 4 marine timekeeper cannot be seen as a solution. The desirable solution could only be astronomical. In a manuscript from c. 1765, which unfortunately he fails to publish, Monteiro da Rocha is very critical of Lacaille's lunar-distance method (1759) and proposes another one. In this paper, we intend to analyse Monteiro da Rocha’s criticisms and proposals, trying to understand how this manuscript fits into the international longitude debate and the Portuguese scientific scenario at the time. Concurrently, we will re-examine the classical historiography around the English vs. French priority proposal of the lunar-distance method, purging it from its mythologies to shift it towards a more open, less linear history.

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https://data.isiscb.org/isis/citation/CBB718271944/

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Authors & Contributors
Spelda, Daniel
Bennett, Jim
Fernandes, Joǎo
González González, Francisco José
Hanham, Andrew
Hoskin, Michael A.
Journals
Studies in History and Philosophy of Science
Journal for the History of Astronomy
Annals of Science: The History of Science and Technology
Archives Internationales d'Histoire des Sciences
British Journal for the History of Science
European Physical Journal H
Publishers
Carocci
Isoète
Presses Universitaires de Rennes
Universidad Nacional de Educación a Distancia
Concepts
Astronomy
Navigation
Controversies and disputes
Longitude and latitude
Sea travel
Comets; meteors; meteorites
People
Rocha, José Monteiro da
Lalande, Joseph Jérôme le Français de
Cook, James
Euler, Leonhard
Frézier, Amédée François
Herschel, William
Time Periods
18th century
19th century
17th century
20th century
Places
France
Paris (France)
Great Britain
British Isles
Germany
Portugal
Institutions
Royal Society of London
East India Company (English)
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