1. Beginning of Astronomy

I like astronomy.

    Hello. Do you like stars? Are you interested in the universe? I think I would like to talk about astronomy in this blog.

Pyramid of Mayan

    The first topic is the beginning of astronomy. Its history began in BC. Why did ancient people tried to study astronomy? Scholars believe astronomy began with that people make the calendar. First , lunar calendar is used. But it did not represent the one year exactly. Then solar calendar came into use. At the time, it was important that to study in order to make a more accurate calendar. In fact, from the ancient ruins of many, such as the pyramid of the Mayan civilization in Mexico and Stonehenge in England and the pyramids of Egypt, evidence that ancient people had the astronomical knowledge have been found. But astronomy at that time were not clearly separated from astrology. Therefore, it contained between occult element while for that. There is a geocentric theory as an example of the concept non-scientific. Astronomer excellent cast heliocentric theory was present from BC in Egypt and ancient Greece, but there were few at that time that their opinions can be seen unfortunately.

Galileo's telescope

    16 century, from the Renaissance period, astronomy began to progress scientifically in Europe. 17th century, the invention of telescope quickened its progress. It has allowed the researchers that collect a large amount of observational data that can be trusted. Observation technology was so immature Until then, scholars have even figured out the correct theory, they failed to pｒove it. Galileo Galilei is a pioneer of the scientific method, he contributed to the development of various fields is not limited to astronomy. To derive the laws of Kepler, Johannes Kepler explained the motion of the planet to the sun. Universal gravitation was proposed by Isaac Newton at the same time played an important role in this law. People believed the Ptolemaic system still at this time. But we do not have a misunderstanding. People of that era was not stupid. At the time, heliocentric theory was not more accurate than the Ptolemaic theory immature. So they did not know is that the theory that their religion is wrong. Kepler's laws is right pretty . So 18th and 19th centuries, scientists were able to prove on the basis of the theory and excellent observation technology that advanced the heliocentric theory. People eliminate the theory unscientific in this manner, Astronomy, leading to the modern finally been established.

    Able to turn over what it was previously believed to be common sense is very difficult. But when Copernican turn occurs, people had to be taken to it. After this, astronomy more developed, it began to more observation target. Astronomers finished the exact calendar making, They entered the next phase. I want to talk about at the next modern astronomy.

 The sources:

http://en.wikipedia.org/wiki/History_of_astronomy

http://rikanet2.jst.go.jp/contents/cp0320a/contents/rekishi/