Inventor of this instrument is very probably the astronomer Ipparhos. It is a simple instrument, that presents a quarter of graded circle, while from the centre of circle is hung a rope with a little weight. In his beam exists two holes so we can calculate height of star or sun.
PLINTHIS OF IPPARCHOS
Inventor of this instrument is very probably the astronomer Ipparhos. It is a simple instrument, that presents a quarter of graded circle, while from the centre of circle is hung a rope with a little weight. In his beam exists two holes so we can calculate height of star or sun.