A large chicken carcass is at uniform temperature
20^{\circ}C.
It is dropped into a continually stirred icy water at
0^{\circ}C.
Find the approximate time that the warmest point in the chicken has dropped to 0.1^{\circ}C.

The dimensions of the chicken are 10 \times 0 \times 10 cm, and the thermal diffusivity of the chicken matches that of water:

1.4 \times 10^{-7} m^2/s

The solution is approximately 209 minutes.