Medieval clockmaking

5 cards. Each one is a 40-second story with a five-minute read behind it.

1. A medieval machine that mapped the universe before we knew its shapeThe Wells Cathedral clock is more than a timekeeper; it is a mechanical philosophy. Built in the late 14th century, it depicts a geocentric cosmos where the Earth sits still while…
2. The mechanical heartbeat that traded precision for the birth of modern timeBefore the pendulum's steady beat, human civilization relied on a clunky, reciprocating dance of gears. The verge escapement was the first mechanism to break time into discrete ti…
3. A medieval masterpiece that survived demolition and a century of neglectHidden in a cathedral tower for decades, the Salisbury Cathedral clock is often cited as the world's oldest working mechanical clock. It isn't just a relic; it is a complex feat o…
4. The medieval machine that predicted tides and lunar nodesIn the early 14th century, a monk-turned-abbot designed a mechanical marvel so complex it rivaled the greatest engineering of the era. It didn't just tell time; it calculated the …
5. A medieval machine that mapped the heavens in real timeIn 1364, an Italian engineer built a device so complex it functioned as a clock, a calendar, and a mechanical model of the solar system. While we often view the Middle Ages as tec…

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