水的运动一直都是思想家们关注的对象。古罗马学者老普林尼认为,海水渗透到岩石缝隙中,又通过地下通道渗入淡水中,最后才出现在地面上。继达·芬奇之后,皮埃尔·佩罗于1721年在巴黎出版了《论水的起源》,他基于古代文献提出的假说,对水循环进行了首次描述。他认为,海水从海面蒸发,在雨水中凝结,又在能向地下渗水的地面中聚集,最后从不透水的岩床中涌出形成河流。水是蓝色的宝贝,但绝大部分都是咸 The movement of water has always been the object of thinkers’ attention. Old Pliny, an ancient Roman scholar, believed that seawater infiltrated into rock crevices and penetrated fresh water through underground passages before finally appeared on the ground. Following Leonardo da Vinci, Pierre Pero published “On the Origin of Water” in Paris in 1721, and based on the hypothesis advanced by the ancient literature, he described the water cycle for the first time. In his opinion, seawater evaporates from the sea surface, condenses in the rainwater, and accumulates in the ground that can seep into the groundwater. Finally, the river flows from the impervious bedrock to form a river. Water is blue baby, but most are salty