A Handmade Antikythera Mechanism: Rediscovering an Ancient Greek Enigma

The video explores the Antikythera mechanism, an ancient Greek astronomical device discovered in a shipwreck. It models a geocentric system, showing celestial positions. Dr. Alastair Godfrey's modern reproduction is highlighted, featuring a calendar and celestial markers. The video details the cog-making process and explains the geocentric model's effect on planetary motion, using a pin and slot mechanism to simulate varying speeds.

What is the significance of the first point of Aries in the mechanism?

How does Alistair Godfrey create an individual cog for the mechanism?

What mechanical method is used to achieve the varying speeds of the planets in the geocentric model?