Lyceum & BookClub - Week 24 - Copernicus
- Apr 21, 2022
- 2 min read
Updated: Dec 24, 2022
Copernicus
Articles to Read
How Did our View of the Universe Change? Nicolaus Copernicus - Khan academy
World History - Nicolaus Copernicus
Nicolaus Copernicus
Videos to Watch:
Nicolaus Copernicus - Biography - 2.41 min
Nicolaus Copernicus - Beyond the Big Bang - Biography - 4:22 min
Lecture Notes: (from phys.org - see full article below)
The Copernican (Heliocentric) Model:
In the 16th century, Nicolaus Copernicus began devising his version of the heliocentric model. Like others before him, Copernicus built on the work of Greek astronomer Atistarchus, as well as paying homage to the Maragha school and several notable philosophers from the Islamic world (see below). By the early 16th century, Copernicus summarized his ideas in a short treatise titled Commentariolus ("Little Commentary").
By 1514, Copernicus began circulating copies amongst his friends, many of whom were fellow astronomers and scholars. This forty-page manuscript described his ideas about the heliocentric hypothesis, which was based on seven general principles.
These principles stated that:
Celestial bodies do not all revolve around a single point
The center of Earth is the center of the lunar sphere—the orbit of the moon around Earth
All the spheres rotate around the sun, which is near the center of the universe
The distance between Earth and the sun is an insignificant fraction of the distance from Earth and sun to the stars, so parallax is not observed in the stars
The stars are immovable – their apparent daily motion is caused by the daily rotation of Earth
Earth is moved in a sphere around the sun, causing the apparent annual migration of the sun. Earth has more than one motion
Earth's orbital motion around the sun causes the seeming reverse in direction of the motions of the planets
Thereafter he continued gathering data for a more detailed work, and by 1532, he had come close to completing the manuscript of his magnum opus – De revolutionibus orbium coelestium (On the Revolutions of the Heavenly Spheres). In it, he advanced his seven major arguments, but in more detailed form and with detailed computations to back them up.
Optional:
What is the heliocentric model of the universe?
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BookTo Read:
Continue Reading "Women in the Line of Fire"
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