Evolution of Chinese passive solar greenhouses 1970's to 2020's.

Описание к видео Evolution of Chinese passive solar greenhouses 1970's to 2020's.

Passive solar greenhouses are optimized for the short days of winter when it's cold and the sun is low in the sky and shines in from the south. They have enhanced insulation and they greatly extend the growing season. The Chinese versions are somewhat different from north American Visions for passive solar design.

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