Relativity and Spacetime

Author: Zheng Qingzhang
Publisher:
Publish Date: 1998-08-01
Features: If you want to forget your worries and laziness, you should know what is happening on Earth and what is happening in the sky. Soviet poet Mayakovsky wrote the following lines in the first issue of the famous science magazine "Knowledge is Power," which influenced generations. Yes, as a cultured modern person, we really should know many things happening on Earth and in the sky, especially those that are closely related to our lives in terms of time and space.