Examples10 available
Stanford University electrical engineering professor Shanhui Fan said the panels—which include a layer of material similar to what is found in sand—act like a kind of high-tech mirror, both siphoning heat out of the buildings and reflecting the sun's rays, sending both 100 kilometers up into the coldness of space.
His teachings are incorporated in a profound book Daode Jing which Taoists regard as the final authority and doctrines of the religion.
Keep practising
- Practice sheet — print this character in 田字格 with stroke order and trace it.
- All learning tools — pinyin charts, HSK lists, quizzes and printables in one place.
- Pinyin annotator — paste any sentence and read it with pinyin above every character.
Want to practice speaking with a real teacher? Find a 1-on-1 Chinese tutor on italki (affiliate)