It has been known for more than a century that workers of a honey bee colony conduct evaporative cooling to regulate their nest temperature, during hot summer days . In order words, they bring water droplets back to their nest to cool the air temperature inside in order to prevent their nest from being overheated. Water can also be stored in worker’s crop and brought back . There are two types of evaporation that contribute to the cooling process, namely, evaporation by unfolding and refolding their tongues and expose them to the air, which is termed as tongue lash; or evaporation via bringing in water droplets and spray/smear them on the frames and caps on the brood cells. Interestingly, it worth noting that spraying splits water into smaller water droplets. It is also found that honey bee nest is made of wax, a type of material that that has low surface energy, allowing water to keep their spherical caps, and a relatively high contact angle.