Smart Technologies Since Ancient China for Underground Space Air in Cave Dwelling

摘要

The cave dwelling in ancient China had been developed before three thousand years ago. The indoor air quality was very good, since it had been designed by the ancient design guide line according to the theory of wind and water, which has been summed up form the experiences of a long time practice. This paper introduces the theory of wind and water with a scientific concept. The modern problems on indoor air quality in an underground space, such as moisture, carbon dioxide, radon and other pollutants can be solved by this wonderful method generating from the theory of wind and water. It is so called the smart technologies.