14. BGM#014

88. BGM#088 97. BGM#097 They were familiar with those stars. 113. CREDIT A00001BD The next one is how long it takes. the m… But the regular motion of the heavens. a… There's evidence that we were counting t… The third one is how long it takes the e… They're wheeling around a point fixed on… It goes through a cycle of phases from n… And all the stars appear to move around… Our ancestors would have seen the sun. r… When we look up at the sky, all the star… So, that gives you a way of measuring so… Xbec