La Ciencia en la China Antigua Animaciones por Kevin Diestra Referencias https://bit.ly/2M9P6aS https://web.archive.org/web/20060222181543/http://home.cwru.edu/~sjr16/advanced/pre20th_ancients_others.html https://web.archive.org/web/20080309073832/http://sunearth.gsfc.nasa.gov/eclipse/SEhistory/SEhistory.html Lu, Yongxiang (2014). A History of Chinese Science and Technology.