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Alexis Clairaut

Alexis Clairaut.

Alexis Claude Clairaut (13. toukokuuta 1713 Pariisi17. toukokuuta 1765 Pariisi)[1] oli ranskalainen matemaatikko ja tähtitieteilijä. Hän oli lapsinero, joka opiskeli matematiikan opettajana työskennelleen isänsä johdolla ja julkaisi ensimmäisen tieteellisen tutkielmansa jo 12-vuotiaana. Vuotta myöhemmin hän esitelmöi ensimmäistä kertaa Ranskan akatemiassa ja Ranskan tiedeakatemian jäseneksi Clairaut hyväksyttiin jo 1731 vain 18 vuoden iässä. Britannian tiedeakatemian Royal Societyn jäseneksi hänet otettiin 1737.

Vuosina 1736 ja 1737 Clairaut osallistui Lapissa Pierre Louis Maupertuis’n geodeettiseen retkikuntaan, jonka tarkoituksena oli selvittää maapallon muotoa. Matkalta palattuaan hän julkaisi teoksen Théorie de la figure de la terre, jossa Clairaut esitteli niin sanotun Clairautin teorian. Sitä kehittivät edelleen muun muassa matemaatikot Leonhard Euler ja Pierre-Simon Laplace.[2]

Lapin matkan aikana Clairaut seurusteli Torniossa paikallisen raatimiehen tyttären Elisabeth Planströmin kanssa, jonka ilmaantuminen myöhemmin Pariisiin yhdessä sisarensa Christinen kanssa aiheutti kohua kaupungin seurapiireissä.[3] Clairaut’n viettämä sosiaalinen elämä vaikutti lopulta myös hänen tieteelliseen työhönsä ja Clairaut kuoli terveydellistä ongelmista kärsineenä vain 52-vuotiaana.

Lähteet

Viitteet

  1. Alexis Claude Clairaut
  2. Taivaallinen kellokoneisto Tähtitieteen peruskurssi I. Viitattu 26.12.2014.
  3. Sisarusten matka tiedemiesten perään 6.10.2011. Viikkoset. Arkistoitu 26.12.2014. Viitattu 26.12.2014.

Aiheesta muualla

  • Karttunen, Hannu: Vanhin tiede – Tähtitiedettä kivikaudesta kuulentoihin, s. 411. "Alexis Claude Clairaut (1713–1765)". Helsinki: Ursa, 2003. ISBN 978-952-5329-26-1.
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