Pierre Ango (1640 in Rouen – 18 October 1694 in

La Flèche La Flèche () is a town and commune in the French department of Sarthe, in the Pays de la Loire region in the Loire Valley. It is the sub-prefecture of the South-Sarthe, the chief district and the chief city of a canton, and the second most po ...

) was a French Catholic

priest A priest is a religious leader authorized to perform the sacred rituals of a religion, especially as a mediatory agent between humans and one or more deities. They also have the authority or power to administer religious rites; in partic ...

and

scientist A scientist is a person who conducts scientific research to advance knowledge in an area of the natural sciences. In classical antiquity, there was no real ancient analog of a modern scientist. Instead, philosophers engaged in the philosoph ...

. He was a professor at the College of La Flèche. In 1682, he published parts of

Pardies Pardies (; oc, Pardias) is a commune in the Pyrénées-Atlantiques department in south-western France. Geography Neighbouring communes *North-East: Artix *North-West: Os-Marsillon *East: Bésingrand *West: Noguères *South-East: Parbays ...

' work on

optics Optics is the branch of physics that studies the behaviour and properties of light, including its interactions with matter and the construction of instruments that use or detect it. Optics usually describes the behaviour of visible, ultrav ...

in his book ''Optique''. In this work, Ango provided a construction for

refraction In physics, refraction is the redirection of a wave as it passes from one medium to another. The redirection can be caused by the wave's change in speed or by a change in the medium. Refraction of light is the most commonly observed phenome ...

which was not dissimilar that of

Hooke Hooke may refer to: * Hooke, Dorset, England ** River Hooke, nearby watercourse * Robert Hooke (1635–1703), English natural philosopher who discovered Hooke's law * Hooke (surname), a surname * Hooke (lunar crater) * Hooke (Martian crater) * ...

Works

* 1682 - ''L'Optique divisée en trois livres'' (''Optics divided in three books'')

Notes

1640 births 1694 deaths 17th-century French Jesuits 17th-century French physicists Catholic clergy scientists Jesuit scientists {{France-reli-bio-stub