We provide an experimental proof showing
that the macroscopic exponential growth of bacteria on a
delimited 2D planar surface follows precisely the same
solution of the heat diffusion equation with the source /
sink term and the prescribed boundary conditions.
The B-chains previously used successfully in solving the
heat equation can be applied to solve the complicated PDE
resulting from the growth of bacteria.
The in-depth study of experimental microbiology
and the study of theoretical mathematical physics are
essential to reveal more characteristics of the growth of
bacteria in the bounded 2D and 3D geometric space