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{{short description|French astronomer (born 1955)}} ...emie-sciences.fr/academie/membre/Laskar_Jacques.htm |date=2012-04-30 }} at French Academy of Sciences</ref> ...

...th [[Greek numerals]] around 600 BC and became largely extinct by the 16th century.{{sfnp|Chrisomalis|2010|p=185}} After the development of [[Positional notat ...gyptian signs. The first examples of the Greek system date back to the 6th century BC, written with the letters of the [[History of the Greek alphabet#Standar ...

...r designed by a commission assembled by Pope Gregory XIII in the sixteenth century."}}{{efn|Many countries that use other calendars for religious purposes use ...ays; when Russia and Greece did so (for their civil calendars) in the 20th century, the jump was 13 days. For other countries and territories, see [[List of a ...

...actions. The system became the standard of France and Europe within half a century. Other measures with unity ratios<ref group="Note">ratios of 1 between mag ...irst practical realisation of the metric system came in 1799, during the [[French Revolution]], after the existing system of measures had become impractical ...

| named_after = Latin {{lang|la|Neptunus}}, via French {{lang|fr|Neptune}} ...Neptune|remaining moons]] were located telescopically until the 20th&nbsp;century. ...

...British Agriculture|great agricultural depression]] during the early 20th century.<ref name="SA" /> His paternal great-grandmother saved the family from fina ...to inaugurate the Laboratory of Astronomy and Particles in Paris, and the French release of his work ''[[God Created the Integers]]'', 5 May 2006]] ...

...or [[panemone windmill]] first appeared in [[Greater Iran]] during the 9th century.<ref>Glick, Thomas F., Steven Livesey, and Faith Wallis. Medieval science, The 9th century mathematician [[Muhammad ibn Musa al-Khwarizmi]] founded algebra and expand ...

...ch are nearly independent of velocity, drag forces depend on velocity.<ref>French (1970), p. 211, Eq. 7-20</ref><ref name=NASAdrag>{{cite web|title=What is D ...Fly.aspx|archive-date=10 November 2011}}</ref> The term derives from the [[French language]] verb ''empenner'' which means "[[Fletching|to feather]] an arrow ...