The Ancient Computer: The Antikythera Mechanism

The Antikythera Mechanism forces us to rethink something we usually take for granted: the idea that technology marches forward in a straight, steady line. It doesn't. Knowledge gets lost. Workshops close. Wars happen. Skills die with the people who hold them, if no one writes them down — or if what's written down doesn't survive. This single object is our only surviving proof that ancient engineers were capable of building analog computers — real, functioning, geared devices for calculating astronomical positions. Not myths about it. Not descriptions of it. The actual machine.