2000 Year Old Analog Computer - Decoding the Antikythera Mechanism

Such an amazing object ... of itself, and that it even survived that long on the ocean floor.

After being found, it sits around for 50 years before anyone qualified to understand it takes a hard look. Then forgotten for many years, then decades more to sort of prize out how it worked. Then the need for advanced imaging tech to pry apart and decode the (physically fused) layers.

To me probably the most amazing single-object story ever. And we may never know the who or where. (Are there more out there?)

Coincidentally, I have been watching this YT channel about machining metal where the presenter is attempting to build the same mechanism while staying true to its design:

https://www.youtube.com/playlist?list=PLZioPDnFPNsHnyxfygxA0...