This document discusses heat transfer mechanisms and describes an experiment to investigate how color affects heat loss through radiation. The experiment uses a data logger to record the temperatures of two flasks - one painted black and one wrapped in silver foil - filled with boiling water. An insulating cover is placed over each flask to minimize heat transfer by conduction and convection. The results show that the black flask cooled more quickly than the silver one due to differing abilities of the colors to absorb and reflect thermal radiation.