HYPATIA MADE IT! It's a historic instrument probably used originally for measuring the altitudes of heavenly bodies and for determining their positions and movements. Although its origin is ancient and obscure, its invention is frequently ascribed either to Hipparchus or to Apollonius of Perga. For many centuries it was used by both astronomers and navigators.
A plane intersects a line at a point, and i plane intersects another plane at a line.
Into plane
sagittal plane is a vertical plane that divides sth to left and right parts coronal plane is a vertical plane that divides sth into anterior and posterior parts
Point
It depends on where and what ABC and DEF are!
compass, and the astrolabe
I used an astrolabe because i felt like it.
astrolabe=star+mechanical clock
== == the astrolabe is to find the altitude of a stellar object
The word astrolabe is a noun. The plural is astrolabes.
Astrolabe: star + Mechanical Clock
An astrolabe is an old instrument used to calculate the position of celestial bodies. Here are some sentences.I found an antique astrolabe in an old store.An astrolabe was used before the sextant was invented.Polish that astrolabe so it doesn't tarnish.
An astrolabe helped sailors because it could determine any direction based on the position of the stars. This is why the astrolabe helped sailors.
She may have invented two water machines: one to distill water and another to measure the level of water. She helped invent the plane astrolabe, the hydrometer, and the hydroscope.
The scientist used an astrolabe to find the altitude of the sun and stars.
what does aastrolabe
The astrolabe must be level in order to read the altitudeproperly.