183 - Interesting Things: Nicolaus Copernicus
Nicolaus Copernicus was a 16th century Renaissance-era world famous Polish astronomer, who proposed that the Sun is the center of the solar system and that the planets circle the Sun. Copernicus also noted that Earth turns once daily on its own axis and that very slow long-term changes in the direction of this axis account for the precession of the equinoxes.
