1922年九月的天空

天文学家将如何追寻爱因斯坦的1 3/4角秒

加入我们的科学爱好者社区!

00
大众科学 Magazine Vol 127 Issue 3This article was originally published with the title “The Heavens in September, 1922” in 大众科学 Magazine Vol. 127 No. 3 (), p. 194
doi:10.1038/scientificamerican0922-194
© . All rights reserved.