Which of the following is NOT a method used to determine latitude?
chronometer
astrolab
cross-staff
quadrant
Which was more difficult to determine (latitude or longitude) and why?
Latitude, because it was difficult to see the North Star on cloudy nights.
Longitude because you needed a chronometer and it hadn't been invented yet.
Latitude because it was difficult to get a good reading with the compass.
Longitude because it was difficult to use the cross-staff.
What two instruments made navigation much easier in the 1900s?
Global Positioning Satellite (GPS) and two-way radio
The chronometer and the astrolab
The cross-staff and the compass.
The chronometer and the compass.|||chronometer
Longitude because you needed a chronometer and it hadn't been invented yet.
Global Positioning Satellite (GPS) and two-way radio
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