Ismael Boulliau
Ismael Boulliau (also Boulliaud or Ismaël Bullialdus ; born September 28, 1605 in Loudun , today in the Vienne department , † November 25, 1694 in Paris ) was a French astronomer .
Life
Boulliau converted from Calvinism to Catholicism at the age of 21 and was ordained a priest at the age of 26. In 1632 he became a librarian at the Bibliothèque du Roi in Paris together with the brothers Pierre and Jacques Dupuy.
In 1657 he became secretary to the French ambassador in Holland.
For the last five years of his life he was a priest at St. Victor Abbey in Paris.
Boulliau was friends with Pierre Gassendi , Christiaan Huygens , Marin Mersenne and Blaise Pascal . He supported the views of Galileo Galilei and Nicolaus Copernicus .
On April 4, 1667, he was elected a Fellow of the Royal Society at the suggestion of Henry Oldenburg .
Boulliau suggested in his work Astronomia philolaica (1645) before Isaac Newton that the gravitational force decreases with the square of the distance .
The lunar crater Bullialdus was named after him in 1935.
Works
- 1638: De natura lucis
- 1639: Philolaus
- 1644: Expositio rerum mathematicarum ad legendum Platonem utilium, translation of Theon of Smyrna
- 1645: Astronomia philolaica
- 1657: De lineis spiralibus
- 1667: Ad astronomos monita duo
- 1682: Opus novum ad arithmeticam infinitorum
literature
- Henk JM Nellen: Ismaël Boulliau (1605-1694). Astronomers, épistolier, nouvelliste et intermédiaire scientifique. Ses reports avec les milieux du Libertinage érudit. APA-Holland University Press, Amsterdam et al. 1994, ISBN 90-302-1034-6 (= Études de l'Institut Pierre Bayle, Volume 24; also dissertation, University of Nijmegen 1980).
Web links
- Publications by and about Ismael Boulliau in VD 17 .
- John J. O'Connor, Edmund F. Robertson : Ismael Boulliau. In: MacTutor History of Mathematics archive .
- Project Boulliau (English)
- Galileo Project: Boulliau (English)
| personal data | |
|---|---|
| SURNAME | Boulliau, Ishmael |
| ALTERNATIVE NAMES | Bullialdus, Ismaël |
| BRIEF DESCRIPTION | French astronomer |
| DATE OF BIRTH | September 28, 1605 |
| PLACE OF BIRTH | Loudun |
| DATE OF DEATH | November 25, 1694 |
| Place of death | Paris |