See also:

• CLAIRAULT (or CLAIRAUT), ALEXIS CLAUDE (1713-1765)

CLAIRAULT (or CLAIRAUT), See also:

• ALEXIS
• ALEXIS, WILLIBALD

ALEXIS See also:

• CLAUDE, JEAN (1619-1687)

CLAUDE (1713-1765)  , See also:

• FRENCH
• FRENCH, DANIEL CHESTER (1850– )
• FRENCH, NICHOLAS (1604-1678)

French mathematician, was See also:

• BORN, IGNAZ, EDLER VON (1742–1791)

born on the 13th or 7th of May 1713, at See also:

• PARIS
• PARIS (also called ALEXANDROS)
• PARIS, ALEXIS PAULIN (1800-x881)
• PARIS, BRUNO PAULIN GASTON (1839-1903)
• PARIS, FRANCOIS DE (169o-1727)
• PARIS, LOUIS PHILIPPE ALBERT
• PARIS, TREATIES OF (1814-1815)

Paris, where his See also:

• FATHER

father was a teacher of See also:

• MATHEMATICS (Gr. /saBnµar1Kil, Sc. vOcvn or E7rlQTt'µn; from p iN.La, "learning" or "science ")

mathematics . Under his father's tuition he made such rapid progress in mathematical studies that in his thirteenth See also:

• YEAR

year he read before the French See also:

• ACADEMY, GREEK
• ACADEMY, ROYAL

Academy an See also:

• ACCOUNT
• ACCOUNT (through O. Fr. acont, Late Lat. comptum, cornputare, to calculate)

account of the properties of four curves which he had then discovered . When only sixteen he finished a See also:

• TREATISE

treatise, Recherches sur See also:

• LES

les courbes a See also:

• DOUBLE
• DOUBLE (from the Mid. Eng. duble, the form which gives the present pronunciation, through the Old Er. duble, from Lat. duplus, twice as much)

double courbure, which, on its publication in 1731, procured his See also:

• ADMISSION

admission into the Academy of Sciences, although even then he was below the legal See also:

• AGE (Fr. age, through late Lat. aetaticum, from aetas)

age . In 1736, together with See also:

• PIERRE

Pierre See also:

• LOUIS
• LOUIS (804–876)
• LOUIS (893–911)
• LOUIS, JOSEPH DOMINIQUE, BARON (1755-1837)
• LOUIS, or LEWIS (from the Frankish Chlodowich, Chlodwig, Latinized as Chlodowius, Lodhuwicus, Lodhuvicus, whence-in the Strassburg oath of 842-0. Fr. Lodhuwigs, then Chlovis, Loys and later Louis, whence Span. Luiz and—through the Angevin kings—Hungarian

Louis See also:

• MAUPERTUIS, PIERRE LOUIS MOREAU DE (1698–1759)

Maupertuis, he took See also:

• PART

part in the expedition to See also:

• LAPLAND, or LAPPLAND

Lapland, which was undertaken for the purpose of estimating a degree of the See also:

• MERIDIAN
• MERIDIAN (from the Lat. meridianus, pertaining to the south or mid-day)

meridian, and on his return he published his treatise Theorie de la figure de la terre (1743) . In this See also:

• WORK

work he promulgated the theorem, known as " See also:

• CLAIRAULT (or CLAIRAUT), ALEXIS CLAUDE (1713-1765)

Clairault's theorem," which connects the gravity at points on the See also:

• SURFACE

surface of a rotating See also:

• ELLIPSOID

ellipsoid with the See also:

• COMPRESSION

compression and the centrifugal force at the See also:

• EQUATOR (Late Lat. aequator, from aequare, to make equal)

equator (see See also:

• EARTH
• EARTH (a word common to Teutonic languages, cf. Ger. Erde, Dutch aarde, Swed. and Dan. jord; outside Teutonic it appears only in the Gr. 'pq'e, on the ground; it has been connected by some etymologists with the Aryan root ar-, to plough, which is seen in
• EARTH, FIGURE OF
• EARTH, FIGURE OF THE

EARTH, FIGURE OF THE) . He obtainedan ingenious approximate See also:

• SOLUTION (from Lat. solvere, to loosen, dissolve)

solution of the problem of the three bodies; in 1750 he gained the See also:

• PRIZE, or PRIZE OF WAR (Fr. prise, from prendre, to take)

prize of the St See also:

• PETERSBURG

Petersburg Academy for his See also:

• ESSAY, ESSAYIST (Fr. essai, Late Lat. exagium, a weighing or balance; exigere, to examine; the term in general meaning any trial or effort)

essay Theorie de la lune; and in 1759 he calculated the See also:

• PERIHELION (Gr. reg., near, titXLor, sun)

perihelion of See also:

• HALLEY, EDMUND (1656–1742)

Halley's See also:

• COMET (Gr. Koµieiis, long-haired)

comet . He also detected singular solutions in See also:

• DIFFERENTIAL

differential equations of the first See also:

• ORDER
• ORDER (through Fr. ordre, for earlier ordene, from Lat. ordo, ordinis, rank, service, arrangement; the ultimate source is generally taken to be the root seen in Lat. oriri, rise, arise, begin; cf. " origin ")
• ORDER, HOLY

order, and of the second and higher degrees . Clairault died at Paris, on the 17th of May 1765 .