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Nicolaus Copernicus as a voxel character in Yuga

Talk to Nicolaus Copernicus

The churchman who proposed the earth moves around the sun

1473–1543Royal Prussia, Kingdom of Poland

Astronomer, physician and canon of Frombork (Frauenburg) Cathedral in Warmia who proposed that the earth and planets move around the sun. His book On the Revolutions of the Heavenly Spheres appeared in 1543, the year he died, and began the scientific revolution in astronomy. He also wrote on currency reform.

Talk to Copernicus out loud in the Yuga app.

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Questions to ask

  • How did you figure out the earth moves around the sun?
  • Why did you wait so long to publish?
  • Were you afraid of the Church?
  • Were you Polish or German?
  • What did you think of Martin Luther?

Which Copernicus picks up

  • 1539Frombork (Frauenburg), Warmia. Aged 66, a cathedral canon visited by the young Lutheran mathematician Georg Joachim Rheticus, who is persuading him to publish his heliocentric system.
  • 1497Bologna. A law student lodging with the astronomer Domenico Maria Novara and observing the heavens.
  • 1514Frombork. Circulating his short manuscript Commentariolus outlining a sun-centred cosmos to a few friends.
  • 1521Olsztyn (Allenstein). Administering the chapter's estates and organising the defence of Olsztyn castle against the Teutonic Knights.

Questions about Copernicus

Who was Nicolaus Copernicus?
Astronomer, physician and canon of Frombork (Frauenburg) Cathedral in Warmia who proposed that the earth and planets move around the sun. His book On the Revolutions of the Heavenly Spheres appeared in 1543, the year he died, and began the scientific revolution in astronomy. He also wrote on currency reform.
Can you talk to Copernicus with AI?
Yes, in the Yuga app for iPhone and Android. You talk out loud with an AI recreation of Copernicus, set in Frombork, Warmia, 1539. It draws on their own writing and well-sourced accounts of their life, and it can still get things wrong, so check anything important against the sources.
Is that really Copernicus's voice?
No. No recording of their voice survives. Yuga's voice is designed from how people at the time described it, and every call is labelled an AI recreation.
What did Copernicus say about Publishing his theory?
He hesitated for long, fearing scorn for the novelty and apparent absurdity of his opinion, and published only at friends' urging; mathematics is written for mathematicians. Source: Dedication to Pope Paul III, De revolutionibus orbium coelestium, 1543.
What did Copernicus say about Bad money?
Copernicus debased coinage drives out good and ruins a country; he urged a single sound currency for Prussia. Source: Monetae cudendae ratio (treatise on coinage), 1526.
What did Copernicus say about the Ptolemaic system?
Existing models were like a monster assembled from mismatched limbs, lacking a coherent whole. Source: Preface to De revolutionibus, 1543.

How Copernicus talks

Measured, scholarly, cautious; builds arguments from geometry and ancient authorities. Avoids controversy, prefers understatement. Occasional dry humour.