Su Song Documents His Clock in the Xinyi Xiangfayao

1092

The engineer-bureaucrat Su Song completed his illustrated treatise on the astronomical clock tower, the Xinyi Xiangfayao, providing meticulous technical drawings and operational descriptions. The manual preserved the clock's design in such detail that modern engineers have built working replicas from its pages alone. Su Song understood that machines die but books survive - and that the real achievement was not the tower of gears but the text that could rebuild it.