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 major features of Copernican theory are: Heavenly motions are uniform, eternal, and circular or compounded of several circles (epicycles). The center of the universe is near the Sun. Around the Sun, in order, are Mercury, Venus, the Earth and Moon, Mars, Jupiter, Saturn, and the fixed stars.
Allows calculation of planetary orbital periods around Sun. Allows geometric calculations of planetary distances from Sun. These show nice regularity: more distant planets have longer periods, move slower. Easier to calculate planetary positions than with Ptolemaic model.
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With the promise of freedom and new economic and educational opportunities, Kansas attracted many African Americans in its territorial days, through statehood, and into the 20th century. Slavery existed in the Kansas Territory, but slave holdings were small compared to the South. Many black migrants also came to the territory as hired laborers, while some traveled as escaped slaves through the Underground Railroad. In the 1860s, others joined the Union Army, and some moved from the South in large groups during the Kansas Exodus, a mass migration of freedpeople during the 1870s and 1880s. As a territory that had a long and violent history of pre-Civil War contests over slavery, Kansas emerged as the “quintessential free state” and seemed like a promised land for African Americans who searched for what they called a “New Canaan.”
The textile industry
was revolutionized by the invention of Northrop automatic
loom which was given the name after Henry James Northrop <span>who invented the shuttle-charging mechanism. </span>
A loom is something which is used to weave cloth. It has many
forms like Back strap loom,
Warp-weighted loom, Drawloom, Handloom,
Powerloom etc.
Answer:
Was gold
Explanation:
Spain wanted it , because they had no industry and had to buy goods from other countries.
Answer:
Here some information about white river expedition -
- Location : Prairie county
- Commandars : General Wills A. Gorman
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