The Ptolemaic or geocentric model, which had been studied by the Egyptian astronomer Ptolemy, was overturn during the Reinaissance, when the heliocentric model was promoted and started to be generally accepted.
The geocentric model stated that all astronomical objects: the sun, the moon, the stars, and planets all orbited around the Earth. In opposition, the heliocentric model states that the Earth and other bodies are orbiting around the Sun, which is the center of the Solar System.
After questioning the pre-established and generally accepted theory, the development of a mathematical model of the heliocentric system was done in the 16th century, during the Renaissance, by the mathematican, astronomer and also priest Nicolaus Copernicus. It led to the denominated Copernican revolution, which used the scientific method to overturn a previous wrong conception of the universe.
Answer:
The initial strategy of the North during the American Civil War was "attrition," since the North had many more men than the South and both sides thought the war would be over quickly.
Explanation:
Answer:
The last United States presidential inaugurations with top hat was the inauguration of John F. Kennedy in 1961. Following the counterculture of the 1960s, its use declined further along with the disuse also of daily informal hats by men.
Explanation:
Answer:
Its was to save the Union.
Explanation:
President Lincoln told a New York newspaper that preserving the Union was his main goal of the Civil War — not abolishing slavery. "If I could save the Union without freeing any slave I would do it, and if I could save it by freeing all slaves I would do it," Lincoln said.
Answer:
1,842,000 of net population growth
Explanation:
Since we have 14 births and 8 deaths per 1,000 people, it means that on every 1,000 people we have 6 people more for that year. Considering that the population is 307 million, we need to see how much 1,000's there are in 307 million:
307,000,000 / 1,000 = 307,000
In order to get the total net population growth we need to multiply 307,000 with the growth on every 1,000 people:
307,000 x 6 = 1,842,000
So we get a net population growth of 1,842,000 for that year.
