Found in a Roman shipwreck in 1901, the Antikythera Mechanism (~100 BC) had 30+ bronze gears modeling the sky! ✨ It tracked sun, moon & eclipses using the 18-year Saros cycle. Essentially an ancient analog computer — input, processing, output! 🌙⚙️
Antikythera Mechanism: ancient analog computer predicting astronomical events
Key facts
- Discovered in 1901 in Roman shipwreck off Greek island of Antikythera
- Dated to around 100 BC
- Widely considered most advanced technological artifact of ancient world
- Often described as first analog computer
- Complex system of more than 30 interlocking bronze gears
- Gears carefully calculated and arranged to model movements of celestial bodies
- User could turn hand crank to simulate cycles of sun, moon, and possibly planets
- Front dial displayed position of sun and moon in zodiac and moon phases
- Could predict solar and lunar eclipses using Saros cycle (approximately 18 years)
- Could track longer astronomical cycles to anticipate events far into future
- Gears cut with remarkable precision using tooth counts corresponding to complex mathematical ratios
- Ratios translated astronomical observations into mechanical motion
- Functions like modern computer: input via crank, internal processing, output via dials and indicators
Sources
Antikythera mechanism - Wikipediaen.wikipedia.org
The Antikythera mechanism is an ancient Greek hand-powered orrery (model of the Solar System). It is the oldest known example of an analogue computer.
How a 2,000-Year-Old Device Tracked Eclipses and Planetspopularmechanics.com
The Antikythera mechanism was essentially a complicated celestial calendar—and is a remarkable testament to the sophistication of ancient Greek ...
Mysterious Greek Device Found To Be Astronomical Computeruniversetoday.com
The device, which was discovered over a century ago in an ancient shipwreck near the Greek island of Antikythera, was used as an astronomical computer.
Scientists May Have Discovered How the Ancient Greeks' 'First ...smithsonianmag.com
First discovered by divers in a Roman-era shipwreck in 1901, researchers have puzzled over the extraordinary Antikythera mechanism for decades.
Ancient computer found in shipwreck decoded by scientistsfreethink.com
Considered the world's first analog computer, this marvel of ancient engineering used dozens of bronze gears to predict the positions of the moon, sun, and ...
Was this story useful?
Keep exploring
Every site on this page sits on the globe, and the people who research them are on the Discord.
3D Globe · Sites by country · Story Archive · Research Library · Weekly Journal · Search
AI-generated text · images from the original sources · always verify with the sources.