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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Answer:
Workers lives were heavily changed during the Industrial Revolution, as the requirement for 8+ consecutive hour work days were introduced, sleeping schedules shifted from being taken at intervals to full nights of sleep. As well, the introduction of a stable paycheck rather than the risky trade of farming, which doesn't always guarantee a profit every year.
By exposing people to new ideas through trade
Marginal benefit is more than marginal cost that is why some people more than others enjoy buying a lot of shoes.
Explanation:
When marginal benefit is more than marginal cost the resources were used more efficiently, when there is increase in the quantity. Marginal cost is the cost incurred by producing one extra unit of the commodity. Marginal benefit is referred to as the extra benefit received by consuming one extra unit of the benefit.
in case of shoes the consumer will buy more shoes because he or she is getting extra benefit by consuming one extra unit but when the marginal cost becomes more than the marginal benefit he or she will not like the benefit because the consumer has to pay more for using the benefit.
<span>Immigrants will work for low wages and break strikes, thereby hurting all American workers.</span>
