Applying the Reciprocity Principle to Solving Heat Conductivity Problems (Prilpzheniye Printsipa Vzaimnosti k Pesheniyu Zadach Teploprovodnosti),

It has been shown that the phenomenon of reciprocity which is known in physics also occurs in the case on non-established heat propagation in a solid, specifically if the heat sources is located at point 1 and at point 2 causes a temperature change delta t, then when the sources is shifted to point 2 at point 1 there occurs the same change in temperature delta t. This makes it possible to obtain analytical solutions to some already known problems, as well as the new problems. The application of the reciprocity principle appears promising in summing up laboratory and full-scale studies. Author