But as ingenious as the navigators were, none of their methods would have worked if there had not been patterns that governed the indicators they used, such as the rising and setting point of the stars.
Bet, lai cik atjautīgas bija viņu navigācijas metodes, tās nebūtu derīgas, ja orientieri, pēc kuriem viņi vadījās, piemēram, zvaigžņu lēkts un riets, nebūtu pakļauti stingrām likumsakarībām.