Copernican heliocentrism is the name given to the astronomical model developed by Nicolaus Copernicus and published in 1543. This model positioned the Sun at the center of the Universe, motionless, with Earth and the other planets orbiting around it in circular paths, modified by epicycles, and at uniform speeds. The Copernican model displaced the geocentric model of Ptolemy that had prevailed for centuries, which had placed Earth at the center of the Universe. Copernican heliocentrism is often regarded[by whom?] as the launching point to modern astronomy and the Scientific Revolution.
Heliocentric model from Nicolaus Copernicus' De revolutionibus orbium coelestium (On the Revolutions of the Heavenly Spheres)
Although he had circulated an outline of his own heliocentric theory to colleagues sometime before 1514, he did not decide to publish it until he was urged to do so late in his life by his pupil Rheticus. Copernicus's challenge was to present a practical alternative to the Ptolemaic model by more elegantly and accurately determining the length of a solar year while preserving the metaphysical implications of a mathematically ordered cosmos. Thus, his heliocentric model retained several of the Ptolemaic elements, causing inaccuracies such as the planets' circular orbits, epicycles, and uniform speeds,[1] while at the same time introducing such innovative ideas as:-
The Earth is one of several planets revolving around a stationary sun in a determined order.
The Earth has three motions: daily rotation, annual revolution, and annual tilting of its axis.
Retrograde motion of the planets is explained by the Earth's motion.
The distance from the Earth to the Sun is small compared to the distance from the Sun to the stars.
Pls give me a brainliest if this helped thx
Im guessing they were called "wagon trains". Apologies if i'm incorrect!
Answer: A
Explanation:
Over-Plowing Contributes to the Dust Bowl or the 1930s. Each year, the process of farming begins with preparing the soil to be seeded. But for years, farmers had plowed the soil too fine, and they contributed to the creation of the Dust Bowl.
The Dust Bowl was caused by several economic and agricultural factors, including federal land policies, changes in regional weather, farm economics and other cultural factors. After the Civil War, a series of federal land acts coaxed pioneers westward by incentivizing farming in the Great Plains.
The Homestead Act of 1862, which provided settlers with 160 acres of public land, was followed by the Kinkaid Act of 1904 and the Enlarged Homestead Act of 1909. These acts led to a massive influx of new and inexperienced farmers across the Great Plains.
Many of these late nineteenth and early twentieth century settlers lived by the superstition “rain follows the plow.” Emigrants, land speculators, politicians and even some scientists believed that homesteading and agriculture would permanently affect the climate of the semi-arid Great Plains region, making it more conducive to farming.
Answer:
Artists, architects, and writers used realistic techniques. Their work reflected the Renaissance ideals of humanism, an appreciation of the classics, and curiosity. ... Artists focused on human beings, their achievements, and their relationship to God.
<u>Answer:</u>
Governments can provide more opportunities for advancement.
<u>Explanation:</u>
- They have several departments like police, firefighters, government services etc. they may have less income but there are certain allowances is given to them.
- Like provident fund, minimum travel allowance, medical and insurance. But these are all only limit for in duty.
- After retirement no services for them. They don’t have any housing and free food allowance.
- There are government quarters given to them to live in it. There are some educational concessions are given to their children.
