I'm not sure. It's possible that it's a mix of truth and imagination. We'd need more background information and verification to know for certain if it's truly real.
Yes, Teddy Greene is fictional. It's likely that this name was invented for a story, movie, book, or some other form of creative expression and doesn't refer to an actual person.
It depends. If Andrea Greene is a fictional character, then the story isn't real. But if she's based on a real person or real events, it could be real to some extent.
Tian Gong Kai Wu was an encyclopedia written by Song Yingxing, a scientist of the Ming Dynasty. It consisted of three volumes and eighteen articles, including more than 30 industries such as agriculture and handicraft, more than 130 production techniques, and 122 illustrations. This book was a comprehensive scientific and technological work in ancient China. Some people also called it an encyclopedia. Tian Gong Kai Wu was first published in 1637 (the tenth year of Chongzhen of the Ming Dynasty). It was the world's first comprehensive work on agriculture and handicraft production. This book made a scientific summary and comprehensive summary of the production experience of the working people in ancient China. There were also more than 200 beautiful illustrations in the book.
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