I used an astrolabe because i felt like it.
It was invented in the Hellenistic era by Apollonius of Perga around 220 BC. However it has also been attributed to Hipparchus around 150 BC
It in symmetry with sentence a is what? What is a sentence with symmetry in it? This sentence with symmetry is symmetry with sentence this.
Who or what the sentence is about is the subject of the sentence.
The subject of a sentence is who or what that sentence is about.
yes
The scientist used an astrolabe to find the altitude of the sun and stars.
you are dumb if you do not know
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.
Only an idiot would steer a ship on to astrolabe reef.
compass, and the astrolabe
Astrolabe
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
a sailor uses an astrolabe by using it to tell latitude
An astrolabe helped sailors because it could determine any direction based on the position of the stars. This is why the astrolabe helped sailors.