History of Study
Heliocentrism is the theory that the Sun is at the center of the Solar System. Historically, heliocentrism is opposed to geocentrism, which places the earth at the center. In the 16th century, Nicolaus Copernicus's De revolutionibus presented a full discussion of a heliocentric model of the universe in much the same way as Ptolemy's Almagest had presented his geocentric model in the 2nd century. This 'Copernican revolution' resolved the issue of planetary retrograde motion by arguing that such motion was only perceived and apparent, rather than real...
Read more about this topic: Earth's Orbit
Famous quotes containing the words history of, history and/or study:
“The history of philosophy is to a great extent that of a certain clash of human temperaments.”
—William James (1842–1910)
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—Harold Rosenberg (1906–1978)
“Though those who study are as many as the number of hairs on an ox, those who succeed are as rare as unicorns’ horns.”
—Chinese proverb.