An astrolabe is a primitive angle-measuring tool. It can be used to - very in-exactly! - measure the altitude above the horizon of a celestial body like the Sun, Moon or Polaris in order to calculate your position.
Medieval gunners used the astrolabe to calculate the height of towers and buildings, in order to more accurately aim their cannons.
Answer: There are no Greeks because you didn't put any options
Explanation: Can you please put the question on here, and edit, so we can see which of the "following" are Greeks??
Answer:
i believe the answer is to create free trade..but who knows i could be wrong
Explanation:
I think that it is monism I'm not for sure
The greatest sailor in the ming dynasty was Zheng He cause he improved there ship's and the sailings skills.
