He was a professor of mathematics and philosophy .
Jean - Louis Calandrini ( August 30 , 1703 -- December 29 , 1758 ) was a Genevan scientist .
Jean - Louis Calandrini was a scientist of mathematics and philosophy .
Jean - Louis Calandrini ( August 30 , 1703 -- December 29 , 1758 ) was a Genevan scientist .