Only for tough   Imagine you live in medieval China. Somewhere in the south of China, in tropical part. It’s summer, the temperature reaches 40 degrees and the humidity is almost 100%. On the first day you get relly tired because of heat, you can’t sleep, your clothes stick to a sweaty body and there’s no aircondition, and it won’t be for another 500 years. People were looking for different ways to cool off, especially at night, and they found one pretty unusual. Well, they... Read more