Now 1843 was the year in which Jacobi became unwell, so it was Neumann who influenced Kirchhoff in a very positive way. Neumann 's interests were at this time firmly in mathematical physics and, at the time Kirchhoff began to study at Königsberg, Neumann had become interested in electrical induction.
Ngayon 1843 ay ang taon kung saan Jacobi ay naging masama ang pakiramdam, upang ito ay Neumann na naiimpluwensyahan Kirchhoff sa isang positibong paraan. Neumann 's interes ay sa oras na ito Matatag sa matematika at physics, at ang oras Kirchhoff ay nagsimulang mag-aral sa Königsberg, Neumann had maging interesado sa elektrikal pagtatalaga sa tungkulin.