Travel is interesting since it gives you the chance to understand the silly things we do everyday.
During my travel in US, I realize something:
People in China always use energy to make water hot, while
People in US always use energy to make it cold.
I just cannot bear that everything I drink is cold. Not only “not warm”, half of the water in the cup is “ice”. I didn’t think about my love to hot water too much before I realized American’s love to cold water.
The even more serious energy waster is the drinking machine in Shanghai. Many drinking machine has hot water on the left, and cold water (cold, not normal temperature) on the right. Many people just mix the hot and cold water to get water that is directly drinkable. But why waste the energy to cool it and heat it, before they are mixed?