In fact his theoretical predictions relating to the propagation of heat in non-isotropic solids was later verified experimentally by the physicist Henri de Sénarmont. However, Duhamel did some experimental work of his own, particularly in the area of vibrating strings.
Sa katunayan sa kanyang panteorya paghuhula na may kaugnayan sa propogation ng init sa di-isotropic solids ay napatunayan na mamaya sa pamamagitan ng pagtuklas ng pisisista Henri de Sénarmont. Gayunman, Duhamel did ilang mga experimental trabaho ng kanyang sarili, lalo na sa lugar ng vibrating string.