Question

What did a Jacob's Staff do for a 16th century navigator?

A. It helped him determine his ship's latitude.
B. It allowed him to read the position of the stars.
C. It helped him measure the distance between neighboring ships.
D. It allowed him to determine if a patch of water was navigable.

Answer 1

he helped determine ships latitudes

Answer 2

A. It helped him determine his ship's latitude.

Step-by-step explanation:

A jacob staff, is a crossbow shaped instrument that hels measure the distance from the horizon to a certain celestial body, like the stars, the sun, or the moon, by knowing this angle a navigator could then figure out his latitude and direction. It gets his name from the bible, where Jacob crosses the Jordan river using a staff.