english: It wasn't till Huygens had two things: He had a good theory of planetary rings and how the solar system operated, and he had better telescopic, more fine-grain data in which he could figure out that as the Earth is going around faster -- according to Kepler's Laws -- than Saturn, then we catch up with it.
non_english: I nisu dok Hojgens nije imao dve stvari. Imao je dobru teoriju o planetarnim prstenovima i kako solarni sistem radi. I onda,imao je bolji teleskop,više sređenih podataka sa kojima je shvatio da Zemlja kruži brže-- po Keplerovim zakonima--od Saturna,onda smo shvatili.