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Posted on 2006-12-13 11:37:31
laaran
Biography of Alexis Claude de Clairault (or Clairaut) (May 3, 1713 – May 17, 1765).

From Wikipedia. It is the easiest source I have, and they always copy what they find in common books, so I think it is the common opinion.

He was a prodigy — at the age of twelve he wrote a memoir on four geometrical curves and under his father's tuition he made such rapid progress in the subject that in his thirteenth year he read before the Académie française an account of the properties of four curves which he had discovered. When only sixteen he finished a treatise on tortuous curves, Recherches sur les courbes a double courbure,

Who can believe that ?

That is very interesting to me.
That means that his family had something to hide.
Author
Posted on 2006-12-13 11:45:14
laaran
Wikipedia English is false one point (correct version can be found on the cover page of the 18th century books of Clairaut).

It is Alexis Claude Clairaut.
Not Clairault.
And not "de Clairaut".

He didn't cheat about that. Let's respect this honesty from his family.
Author
Posted on 2006-12-13 12:20:43
laaran
More funny.

Note from a book from Jacques Azanam (strange name, with a 'z' it is not from France ; immigration already ?), a book from 1778.

"Nota. Nous avons oublié de dire que ce théorême, qui est fort ingénieux, & duquel dérive la fameuse proposition du triangle rectangle, est due à M. Clairault le jeune, qui la donna dans un petit ouvrage qu'il publia, à l'âge de seize ans, en 1731. Il eût sûrement marché sur les traces de son frere, si une mort prématurée ne l'eût enlevé. "

That tells that the person who wrote the book in 1731 (when he was 16 years old) died some years later. And that this person has a brother who did an interesting work.
Officially, there is only one famous Clairaut, who died in 1765. Two brothers in 1776, one person in 2006.

Family of liars.
My point of view is that these two brothers were not very gifted. They had one sister, who was gifted in mathematics.
In a machist country, it was clever to publish with a male signature...
 
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