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.
A. It established England as a world power.
Answer:
No child left behind = created a system for testing school performance to reduce the education gap for children
School Choices Policies = Encouraged states to fund vouchers for private schools
Supply-Side Economics = Reduced taxes for most people while allocating the largest reductions to the rich.
Hope this helps <3
Answer:
In the late 1800s, there were two inventions that changed Americans' lives, they were the telephone and the electric lighting