Pierre-Louis Moreau de Maupertuis - La figure de la terre - 1738

Pierre-Louis Moreau de Maupertuis - La figure de la terre - 1738
Astronomie, Natuurkunde, Natuurlijke historie, Wetenschap (algemeen) - Aantal: 1 - Boek

Maupertuis (Pierre-Louis Moreau de)

La Figure de la Terre, déterminée par les observations [...] faites par ordre du Roi au Cercle polaire.

Paris, de l'imprimerie royale, 1738.

1 duodecimo volume (19.5 x 12.5 cm), glazed tawny marbled calfskin (period) binding, adorned ribbed spine, red morocco title label, red edges, lovely margins, “l’Esprit” bookplate, xxiv-[4]-184 pages (complete). Blunt corners, rare pale spots of foxing. In very good condition.

First edition.

It is illustrated with a map of the meridian arc measured at the Arctic Circle and 9 fold-out figures bound at the end of the book.

The book makes public Maupertuis' conclusions on the flattening of the earth at the poles. The expedition which he led, sponsored by Minister Maurepas, was intended to verify the claims of Huyghens and Newton, who had concluded from Richer's 1672 measurements in Ecuador that the earth was not perfectly round as was believed. The Academy then sent La Condamine and Bouguer to Peru and Maupertuis to Lapland, in order to directly measure a meridian arc. The arch was measured in Lapland (Kittis meridian), between Pello in the north and Tornea in the south.
Its length was much greater than that which could be deduced from Picard's calculations in France: Newton's theory prevailed.

A lovely copy.

Aantal boeken
Astronomie, Natuurkunde, Natuurlijke historie, Wetenschap (algemeen)
Auteur/ Illustrator
Pierre-Louis Moreau de Maupertuis
La figure de la terre
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