beginning of astronomy
Early races believed that the earth was flat and stationary, with the sky rotating round it once a day. The early races also believed things that sound weird to us today like the Vedic priests of India believed that the earth was supported upon 12 massive pillars and during the hours of darkness the sun travelled between these pillars without hitting them. The Hindu theory sounds even more peculiar as they believed that earth stood on the back of four elephants, which in turn the elephants stood on the shell of a gigantic tortoise, the tortoise however was supported upon a serpent floating in a limitless sea. All these beliefs had mistakes in the beginning, but as more people tried to explore astronomy, their observations and records became of more value.Most likely, the first astronomers were Chinese as they adopted a year of 365 days, which enabled them to work out a calendar, and from this they were able to predict eclipses. The Chinese did not just record eclipses, they also recorded comets as so did the Egyptians, but both civilisations were puzzled to what the phenomena meant, and they probably regarded the phenomena as being part of astrology.The early Egyptians were extremely skilful at measur
The refractor worked like this, the object being studied falls upon a glass lens known as an object-glass, this bent the light rays together at a point known as the focus, where the image was formed. This all changed when a Dutch spectacle maker, Hans Lippershey discovered the principle of the telescope. This is important as it gave a clue to how old the Pyramid was. Today we think of the earth being at the centre of the universe and nothing else, Copernicus knew he was taking a huge step. In the science of astronomy a more simple and straight forward theory is more accurate than a large one, and Copernicus looked for some way of avoiding the complications which Ptolemy and his followers had been forced to introduce. About three years later a Danish scientist, Tycho Brahe was born, he later collected astronomical data, at the age of thirteen he was sent to university, by the age of seventeen he calculated the apparent position of the planets in the sky, and found that the official tables of planetary movements were seriously wrong, and so he began making observations himself. Copernicus himself was a priest, and though he had worked out his theory by 1533 and written it down in a book which he called De Revolutions Orbium Caelestium, he did not feel inclined to publish it. C, he concluded that the sun was bigger than the earth, and the moon smaller than the earth, he also suggested that the earth revolved around the sun. Thales was the first of the great Greek astronomers, he was born in about the year 624 B. Aristarchus who lived from 310 to 230 B. He made discoveries of the surface of the moon. In the year 1609, Galileo built the first telescope (what were formerly known as refractors). The image is then magnified by another lens called the eyepiece.
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