Tycho Brahe
1609
Johannes Kepler (1571 - 1630), a student of Tycho Brahe, publishes Astronomia Nova (New Astronomy), which contain his first two laws of planetary motion. Kepler's first law assumes that Mars has an elliptical orbit, which was a revolutionary idea at the time. Until then, the classical belief held that a circle was perfect, and therefore all orbits must be circular.
1609
Galileo Galilei (1564 - 1642) observes Mars with a primitive telescope, becoming the first person to use it for astronomical purposes.
1659
The Dutch astronomer Christiaan Huygens (1629 - 1695) draws Mars using an advanced telescope of his own design. He records a large, dark spot on Mars, probably Syrtis Major. He notices that the spot returns to the same position at the same time the next day, and calculates that Mars has a 24 hour period.
1666
Giovanni Cassini (1625 - 1712) observes Mars and determines that the rotational period, or length of one Mars day is 24h, 40m.
1672
Huygens is the first to notice a white spot at the south pole, probably the southern polar cap.
1698
Huygens publishes Cosmotheros, which discusses what is required of a planet to support life, and speculates about intelligent extraterrestrials. This is one of the first published expositions of extraterrestrial life.
Historical Perspective...
The Trial of Galileo
The 1600s were not an easy time in which to study science. The church was a powerful institution and had its own ideas about the nature of the universe. Galileo was a beliver in the Copernican theory that the solar system revolves around the sun. He was advised by Cardinal Bellarmino to be cautious and not to imply the the Copernican theory were real. He published a book, Siderius Nuncius (Starry Messenger) which was considered controversial and in opposition with the ideas of the Roman Catholic Church, and was arrested and tried in the Inquisition. Galileo was found guilty of heresy and was sentenced to life imprisonment and forced to recant. In secret, he wrote another book, which was smuggled out of the country and published in France. His work is now considered the foundation of modern physics.
World War I effectively ended the Ottoman Empire.
The Allies who defeated the Ottoman Empire wanted to divide Turkey up as spoils of War but the Turkish National Park led by future President Mustafa Kemal Ataturk fought them off and eventually founded the new nation of Turkey with its capital in Ankara.
At the age of 14 they became a squire
The correct answer is B. People were denied their right to free speech
Explanation:
The Palmer Raids were a series of Raids by the United States Department of Justice led by Attorney General Michell Palmer during 1919 and 1920 which were part of the First Red Scare, a historical period in which American Government fought against a possible widespread of anarchism and Bolshevism. During these raids, multiple immigrants, communists, and anarchists were captured and many were deported. Additionally, the Palmer Raids were seen as a violation of the civil liberties as during most of the captures did not follow the legal process, and the captures were against freedom of speech which means the right to express opinions was not guaranteed as those anarchism or communism ideas were legally punished with prison and deportation which is against civil liberties.
The answer is C. The. competition between farmers trying to settle land. Hope this helps
