The Antikythera Mechanism with Dr. Andronis (277)
The Antikythera Mechanism is a portable planetarium from Ancient Greece. It is 2200 years old and the first known analog computer. Dr. Nick Andronis built one. The front shows the zodiac position of the first 5 planets, sun, moon phase and date.\xa0On the back a 72 year lunar and Olympic calendar with solar or lunar ecliplses.\xa0