ASTR123 G Assignment Example | Topics and Well Written Essays - 500 words

ASTR123 G - Assignment ExampleHe was the first person known to envision the circumference of the dry land. He did this by use of stades, using a particular measuring system, which was remarkably accurate. The accuracy of the measurements was based on the assumptions that the earth is a sphere, Alexandria and Syene (places problematical in the model) lied on the same meridian with a distance of 5000 stades apart. These assumptions give a significant deviation of 0.16from the accurate measurements ( Kerrod, pg. 76).The Ptolemaic model explains the earth as the center of the universe. This model is inaccurate as other astronauts site the sunlight as the center of the universe. However, this model has been accepted over years, leaving No debate in the field of science. This is because we human beings tend to think and believe that we are the center of the universe with all the other heavenly bodies revolving most us, as observed while one is on the earth. Its not until technology an d use of telescopes among other astronauts devices, that this model was confirmed wrong. People understood the process of campaign and established the up to date model that the sun is the center of the universe.Similar to lunar phases, the phases of planet Venus, as explained by Galileo Galilei are the different variations of lighting as seen on earths surface. The phases of the planet Venus result from the earths orbit around the sun, giving an observer a sequence of innovative lighting. It provides a full image when it is o the opposite side of the sun and shows a quarter phase when it is at its maximum elongation from the sun. When Venus comes around to the near side between the Earth and the sun, it shows a crescent phase but a differently new phase when it is between the Earth and the sun ( Kerrod, pg. 110).Nicholas of Cusa (1401 - 1464) was considered by many to be a man ahead in the scientific field. In his scientific writings, he suggested that the earth was nearly