A mysterious bronze device pulled from a shipwreck over a century ago has puzzled historians, archaeologists, and scientists for generations, and the person who finally helped crack its biggest secret was not a professor or a researcher but a YouTuber quietly building a replica in his home workshop. The Antikythera mechanism, discovered in a Roman-era shipwreck near a Greek island in 1901, is widely considered the world’s oldest known analog computer, a dense and intricate system of interlocking bronze gears that was designed to track astronomical cycles with extraordinary precision roughly 2,000 years ago. For decades, one of the device’s central mysteries was its calendar ring, a circular component believed to encode time, and experts could not agree on exactly how many holes it contained or what cycle it had been built to follow. Then a YouTube channel pointed the way forward.
A creator named Chris Budiselic, who runs a channel called Clickspring, had been publicly documenting his efforts to build a working replica of the mechanism and shared detailed data from his reconstruction process with his online audience. A physicist at the University of Glasgow came across that work and realized the question Budiselic was wrestling with could actually be solved using a completely different set of tools: the same advanced statistical techniques scientists use to detect gravitational waves rippling through space. When those methods were applied to the calendar ring data, the research team determined it most likely contained between 354 and 355 holes, a figure that perfectly matches the length of a lunar year and confirms the device was tracking the moon’s cycle with remarkable accuracy. Each hole in the ring was separated by just a fraction of a millimeter, a level of ancient craftsmanship that continues to leave modern engineers speechless and serves as a beautiful reminder that human ingenuity has never really had an age.
Source: https://dailygalaxy.com/2026/04/youtuber-decoded-world-oldest-computer/
