Daily entries from the 17th century London diary
see this site for how one found ones place on the high seashttp://galileo.rice.edu/sci/observations/longit...
.....The Portuguese pioneered the method of navigating by latitude. Ships had to be equipped with instruments (astrolabes, cross staffs) to measure the altitudes of stars or the Sun.....
Log in to post an annotation.
If you don't have an account, then register here.
inaquascripto Link to this
see this site for how one found ones place on the high seas
http://galileo.rice.edu/sci/observations/longit...
.....The Portuguese pioneered the method of navigating by latitude. Ships had to be equipped with instruments (astrolabes, cross staffs) to measure the altitudes of stars or the Sun.....