Case 1A: Fully-insulated coffee cup with a layer of cold milk poured on the top surface without external diffusion effect.		Case 1B: Fully insulated coffee cup with a layer of cold milk poured at the center middle-half on the top surface without external diffusion effect.

Case 2A: Fully-insulated coffee cup with cold milk poured for a short duration at the center and plunging to a specified depth without external diffusion effect.		Case 2B: Fully insulated coffee cup with cold milk poured for a long duration at the center and plunging to a specified depth without external diffusion effect.

Case 3: Non-insulated thin-walled coffee cup with thick layer of cold milk poured at the top surface with diffusion effect into ambient surroundings around the sides and above the cup.		Case 4: Non-insulated thick-walled coffee cup with thick layer of cold milk poured at the top surface and covered with a thick lid plus diffusion effect into ambient surroundings around the sides of the cup.