A systematical approach to the hidden order and beauty in our solar system
in a course of 4 events by Hartmut Warm
online-course in English with Chinese translation
1, 8, 15, 22 December 2021, 19:30 – 21:00 time in China (12:30 – 14:00 time in Germany)
Information and registration (only in Chinese):
https://mp.weixin.qq.com