a sailor uses an astrolabe by using it to tell latitude
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Astrolabes had numerous purposes. At sea, the astrolabe would have been used to calculate one's position in the water based on the position of the sun, stars, or the moon.
You need to look where the shadow is leaning
well I know that they did not use Viking ship designs. 3======D 0:
Astrolabes, maps
Astrolabes can still be found in use today to measure the amount of day light remaining or for general navigation. The Astrolabes was replace by the easier to use Davis quadrant at the end of the 17th century.
most likely a ship and compass
Astronomy...
What points did sailors use to navigate
There were a number of navigational and sailing technologies that allowed European exploration of the world. Some of them included maps, compasses, quadrants, sextants, cross staff and astrolabes among others.
She could make astrolabes.
R. T Gunther has written: 'The astrolabes of the world' -- subject(s): Ashmolean Museum, Astrolabes, Bibliography