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??- (Nicole-Rhine Etabl de la Brire)

( French mathematician and astronomer)

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Biography ??- (Nicole-Rhine Etabl de la Brire)
Nicole-Rhine Etabl de la Brire (by her husband, Madame ?+-) - a famous French mathematician and astronomer. (5.01.1723-6.12.1788)
Madame ?+- involved in calculating the orbit of Halley's Comet was the compiler of the ephemeris (trajectory on the sky) Sun, Moon and planets.
Nicolas-Rhine Etabl de la Brire published in editions of the Paris Academy.
In honor of Madame ?+- was originally named Hortense (potiey).
She was born in Paris on January 5, 1723.
In 25 years, she became the wife of the court watchmaker M. A. ?+- (1709-1789) and conducted mathematical calculations for his work on the theory of the pendulum clock.
In 1757, Nicole-Rhine Etabl de la Brire joined the Lalande and Claire started work on the calculation of the expected orbit of a comet (Halley's) because of its perturbations from Jupiter and Saturn. As a result, it was predicted that the comet will be delayed for 618 days and will pass perihelion in April 1759 with a possible error in the month (the comet passed it in March). December 26, 1758, Mr.. first in Europe, it said Saxon amateur astronomer and. G. Palic (1723-1788), whose name in connection with this was recorded later on a map of the Moon. In Paris, the comet first seen January 21, 1759.
While Madame ?+- was the only woman mathematician and astronomer in France, a member of the scientific academy in Beziers.
Nicole-Rhine Etabl de la Brire - author of works that were published in editions of the Paris Academy, although the latter did not dare to recognize the academic achievements of female astronomer.
Nicole-Rhine Etabl de la Brire belongs to calculate the orbit of comet 1762.
Also, Madame ?+- calculated and amounted to a detailed map of the observed in Paris in 1764 annular solar eclipse.
In 1774 came the calculated Nicole-Rhine Etabl de la Brire ephemerides of the Sun, Moon and the five then known planets in the period up to 1792.
After the vision Madame ?+- was heavily damaged, she stopped astronomical calculations.
The past seven years, Nicole-Rhine ?+- held in Saint-Cloud, tending the sick, who fell into a nervous breakdown husband.
December 6, 1788 Nicole-Rhine Etabl de la Brire died.
In honor of Madame ?+- naturalist Commerson called flower brought from Japan ( "Japanese rose") "potiey", but then another naturalist, A. Jussieu, changed it name to "Hydrangea". As a result of these developments came the legend of Hortense ?+-, which became popular literature. This confusion opened in 1803 Lalande, highly tsenivshy scientific merits Madame ?+-.


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??- (Nicole-Rhine Etabl de la Brire), photo, biography
??- (Nicole-Rhine Etabl de la Brire), photo, biography ??- (Nicole-Rhine Etabl de la Brire)  French mathematician and astronomer, photo, biography
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