Science · Discoveries that changed the world

What Is the Antikythera Mechanism?

A corroded bronze block waited two thousand years at the bottom of the sea for us to understand it calculated eclipses.

2nd century BC4 min read5 partsQuiz of 6 questions
Read in the app Available in 30 languages
Marsyas · NAMA Machine d'Anticythère 1 · CC BY 2.5 · Wikimedia Commons
Part 1 of 5 · freeIntroduction

In the spring of 1900, sponge divers from the island of Symi took shelter from a storm near Antikythera, a small island between Crete and the Peloponnese. While diving, one of them discovered an ancient shipwreck covered with statues. For a year, the Greeks brought up bronzes, marbles, and amphorae.

Among the finds, a block of bronze and wood the size of a shoebox interested no one. In 1902, the archaeologist Valerios Stais noticed a gear wheel caught in the corrosion. He had just laid eyes on the most mysterious object of Greek antiquity.

The rest is in the Sophia app.The remaining parts, the open-book quiz and the full glossary. Free to start; Premium unlocks everything.
  1. 2A Shipwreck and a Bronze Block
  2. 3What the Corrosion Hides
  3. 4A Calendar of the Heavens in a Box
  4. 5What It Teaches Us
Open-book quiz6 questions whose answers are in the text.
Glossary4 terms explained in a tap.
30 languagesThe same course, from French to Japanese.

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