1 ene 1543 año - Nicolaus Copernicus ~1543 - Heliocentric conception

Descripción:

He observed the sky, still without a telescope.
He assumed, that the Sun is at the center of the universe, and that Earth and all the other planets are revolving around Sun (heliocentric conception).

Also, he claimed, that planets orbits are circular.


note: there is also no exact date in the course. only thing that was said is that Copernicus didn't wanted to publish anything about heliocentric conception until his death.

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