Chinese legacy to exploration of space.
D001256:Astronomy / Q000266:history; D001359:Aviation; D002681:China; D006115:Greece; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D049690:History, Ancient; D049691:History, Medieval; D006801:Humans; D008280:Magnetics; D008433:Mathematics / Q000266:history; D010825:Physics / Q000266:history; D013026:Space Flight / Q000266:history*