There he worked in the physical laboratory of Henri-Victor Regnault and he was soon taking part in deep discussions with Biot, Cauchy, Liouville, Dumas, and Sturm .
Doon siya nagtrabaho sa pisikal na laboratoryo ng Henri-Victor Regnault at siya ay kaagad dinadala ng bahagi sa mga talakayan na may malalim Biot, Cauchy, Liouville, Dumas, at Sturm.