In this paper, we study how heat flows outward from the center of a sphere using the Laplace transform. This type of heat flow is called plane radial flow, where the temperature only changes with distance from the center, not with direction. Unlike traditional methods that  use separation of variables, we try a new approach using the Laplace transform. This gives a different perspective for solving heat flow problems in spherical shapes.

circularly symmetry, plane radial flow, Laplace transform