GCSE Astronomy Topic 1 Key Facts The Earth Eratosthenes first measured the circumference of the Earth accurately. He measured the altitude of the Sun North of a place where the Sun was at the zenith at exactly the same time. Knowing the distance and the angle one can work out the circumference. The Earth is a slightly flattened sphere with average diameter 13‚000km The Earth takes 23 hours 56 minutes to rotate. This is a sidereal day. The Earth is the only known planet with liquid water and a range
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Three extremely significant men of science and more importantly astronomy‚ excelled in their fields in leaps and bounds. Aristotle‚ Ptolemy‚ and Copernicus all were and still are renowned as great minds and influential astronomers. These great men were all well known for their models of the solar system‚ many aspects of these theories are still used in current research by our generation’s most brilliant minds in astronomy. The geocentric and heliocentric models of the solar system were possibly the
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Caden Carter Writing 121 Mrs.Boeschenstein 20 January 2016 Argument Essay The search for extraterrestrial life has been ongoing for hundreds of years. Extraterrestrial life can be defined as life that does not originate from Earth. It is also called alien life‚ or‚ if it is a sentient and/or relatively complex individual‚ an "extraterrestrial" or "alien". The ancient Greeks were the first to theorize about extraterrestrial life. They debated and learned about space to discover what they could. In
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Extraterrestrials depicted in Science-Fiction The human race has come a long way since the beginning of its existence. Throughout that time‚ shared interpretations and concepts have changed profusely. The genre of science-fiction has been popular in both literature and films for centuries. Science-fiction displays aliens in many contrasting styles‚ but the very idea and wonder of aliens has always been around. The different ways writers and filmmakers portray extraterrestrials in science-fiction
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would the world be like without astronomy? Many people would agree that the world would be put to a halt without it. Astronomy is one of the oldest forms of Physical Science‚ with its roots dating back as far as thousands‚ even millions of years ago. Astronomy contributed a lot to every civilization; it assisted people throughout history‚ it made up religion to most‚ while it also helped people determine when the correct time to begin planting. The beginning of Astronomy didn’t exactly begin with a telescope
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9.7 Option – Astrophysics 1. Our understanding of celestial objects depends upon observations made from Earth or from space near the Earth 1) Discuss Galileo’s use of the telescope to identify features of the Moon. The Tuscan physicist‚ mathematician and philosopher Galileo Galilei constructed one of the earliest telescopes which he pointed towards the heavens. Galileo observed the moons of Jupiter‚ the phases of Venus and the rough features of the moon. This new evidence conflicted with the
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Observable phenomena related to the moon: - phases of the moon: depending on the Moon�s position relative to the Sun‚ we see different parts of the illuminated Moon. - the month:� Moon changes through a complete cycle of phases in about 29.5 days - eclipses To understand these phenomena‚ we have to change our perspective and think about the Moon�s orbit. Some properties of the Moon: Radius 356‚000 km 407‚000 km 15% change from max to
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Elan Footerman Dr. Frank SS155 4/9/13 Mayan Astronomy One of the monumental aspects of the Mayan Civilization was their interest in astronomy and the calendar. The Mayans made predictions in starwatching that are nearly as accurate as our calculations today. They were one of the first civilizations to show major advances in the study of the stars. It is likely that the reason the Mayans wanted to study the stars and other celestial bodies was so that they would be able to predict weather
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Sebastian Trigonometry and astronomy Trigonometry is used everywhere in our lives‚ since the beginning of development in our civilisations‚ people have been researching about the three lengths that have mystified for centuries. Trigonometry can almost be seen everywhere. First of all though we need to know its international definition‚ trigonometry is a study of triangles and its sides and angles‚ the hypotenuse‚ the adjacent side and the opposite side. Trigonometry also has its different functions
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HISTORY OF ASTRONOMY Astronomy is the oldest of the natural sciences‚ dating back to antiquity‚ with its origins in the religious‚ mythological‚ and astrological practices of pre-history: vestiges of these are still found in astrology‚ a discipline long interwoven with public and governmental astronomy‚ and not completely disentangled from it until a few centuries ago in the Western World . In some cultures astronomical data was used for astrological prognostication. Ancient astronomers were able
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