Chinese astronomy reached its pinnacle in the Song Dynasty(960-1279)as culture continued to prosper to a new height.The ......

玲珑仪是元代文学家郭守敬为测定《授时历》所需基本天文数据而研制并使用的一台仪器．因为没有实物遗存传世，相关记录又比较少，中外学......