He moved on to reading the works of Fourier and Fresnel and he began his own experimental work in the school physics laboratory after he had learnt of Oersted's discovery of electromagnetism in 1820.
Siya ay inilipat sa pagbabasa ng mga gawa ng Fourier at Fresnel at siya ay nagsimulang kanyang sariling experimental trabaho sa paaralan physics laboratoryo matapos siya had learnt ng ested's pagkatuklas ng electromagnetism sa 1820.