Engineering Commons LLC
Home: https://www.engineeringcommons.org/
Antikythera Mechanism: https://www.engineeringcommons.org/antikythera-mechanism
Build Pictures: https://www.engineeringcommons.org/antikythera-build-pictures
Planetarium Derivation: https://www.engineeringcommons.org/lost-planetarium
Equation of Time: https://www.engineeringcommons.org/antikythera-eot
Pin-Slot Anomaly Correction: https://www.engineeringcommons.org/anomaly-correction
Further Reading:
Clickspring Antikythera Build: https://www.youtube.com/watch?v=ML4tw_UzqZE
Antikythera Mechanism Research Project: https://www.antikythera-mechanism.gr
Tony Freeth’s Presentation at Stanford: https://www.youtube.com/watch?v=xWVA6TeUKYU
Michael Wright at Computer History Museum: https://www.youtube.com/watch?v=cSh551cdIEY
Jo Marchant’s Talk at Darwin College: https://www.youtube.com/watch?v=Iv-zWbxm2lY
Planetary Positions: https://ssd.jpl.nasa.gov/horizons/app.html#/
Chapters
0:00 Intro
0:30 Background
1:56 Gear Ratio Example
4:17 Reproductions
5:09 Changes
6:22 A Note on Friction
7:40 Changes
8:24 Spiral Pointers
10:21 Planetarium Design
13:45 Inferior Planets
15:58 Superior Planets
17:15 Lunar Anomaly
18:10 Equation of Time
21:31 Bevel Gears
22:40 Layout & Fabrication
24:20 Assembly
28:20 Usage
30:58 Outro