Ismael Bullialdus

Ismael Bullialdus
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Ismael Bullialdus

Ismael Bullialdus (Boulliaud, Boulliau) (September 28, 1605 - November 25, 1694) was a French astronomer. He was born in Loudun, Vienne, France.

In 1640, he suggested that the force of gravity follows an inverse-square law. (Isaac Newton made this idea precise in his 1687 work, the Principia.)

Ismael Bullialdus died in Paris, France.

External links

  • Short biography (http://www-gap.dcs.st-and.ac.uk/~history/Mathematicians/Boulliau.html)
  • Longer biography (http://web.clas.ufl.edu/users/rhatch/pages/11-ResearchProjects/boulliau/bio-historical/06-b-michaud-1843-etc.htm) (in French)

Template:Astronomer-stub

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