13:07

Setting Up the Armillary Sphere

3:43

Animate It - Armillary Sphere

11:11

Determine Longitude

5:23

A simple Heliochronometer Sun dial

7:09

A HORIZONTAL SUNDIAL

10:11

H.M. Kala Pocket Sundial - the weirdest time telling device in my collection

4:14

Armillary Sphere animation

1:56:00

Pre-Egyptian Technology Left By an Advanced Civilization That Disappeared