Conduction# Fourier’s law, thermal resistances, shape factors, fins and finite-difference conduction in one and two dimensions. Fourier’s Théorie analytique de la chaleur (1822) Fourier's Théorie analytique de la chaleur (1822) Harper and Brown’s fin efficiency (1922) Harper and Brown's fin efficiency (1922) Crank and Nicolson: numerical conduction (1947) Crank and Nicolson: numerical conduction (1947)