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Copernicus
....ined how all the celestial bodies move around
the Sun. It took Nicolaus 30 years of mathematical research to form a theory
about planetary motion. The three most popular instruments which
used were quadrant, armilla, and triquetrum. All furnish some measure of the
position of the heavenly body. It took an endless .... |
| Number of words: 205 - Approximate pages: 1 |
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