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Why not can we use the heat of sun to make the clothes dry? In a lot of countries, people take this free resource as much as possible.
In Venice, people never waste the chance to sun-dry outside. The clothes are waving outside by the old building, have become a part of the custom and tradition in Venice.
When morning dries clothes on the clothesline, we also placed the collector clothes under the sunshine to absorb the heat. After that, we can use the solar energy which is saving in the morning, and bring the warmth to the night.
Ling Tung University
Hui-Shan Lin Siang-Ning Huang Wei-Wen Tsui