  In this paper, we show that bending of spaghetti beams and columns exposed to
hot steam reveals the time evolution of young modulus, the diffusion
coefficient of water molecules penetrating the spaghetti, the partial Fickian
behavior of water diffusion, and a logistic-like evolution of column bending
angle. The bending geometries were timely recorded and the Young moduli were
obtained by processing the images. We applied two equations proposed by us
previously, one equation was applied for beam bending and the other for column
bending, to estimate the Young moduli. The experiment was conducted by exposing
the freely-hung cantilever spaghetti beams and columns using hot steam from
boiling water so that the images were recorded in realtime while the beam or
column bent undisturbedly. Surprisingly, the estimated diffusion coefficient of
water molecules matched well the experimental data reported by others. This
method may become an alternative for estimating the diffusion coefficient of
vapor molecules penetrating the materials.
